Document:

Form of Supplemental Indenture No. 2

 Exhibit 4.1 
 AMERICAN TOWER CORPORATION 
 and 

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. 
 as Trustee 
  

 
 SUPPLEMENTAL
INDENTURE NO. 2 
 Dated as of
                     

to 
 BASE
INDENTURE 
 Dated as of May 13, 2010 
 $1,000,000,000 Principal Amount 
 4.500% SENIOR NOTES
DUE 2018 

 TABLE OF CONTENTS 

 

							
	 	  	 	  	Page	 
		
	Article I DEFINITIONS AND INCORPORATION BY REFERENCE	  	 	1	  
			
	 Section 1.01.
	  	Definitions	  	 	1	  
			
	 Section 1.02.
	  	Incorporation by Reference of Trust Indenture Act	  	 	9	  
			
	 Section 1.03.
	  	Rules of Construction	  	 	9	  
		
	 Article II THE SECURITIES
	  	 	10	  
			
	 Section 2.01.
	  	Form and Dating	  	 	10	  
			
	 Section 2.02.
	  	Execution and Authentication of Securities	  	 	10	  
			
	 Section 2.03.
	  	Registrar and Paying Agent	  	 	10	  
			
	 Section 2.04.
	  	Paying Agent to Hold Money in Trust	  	 	10	  
			
	 Section 2.05.
	  	Transfer and Exchange	  	 	11	  
			
	 Section 2.06.
	  	Outstanding Securities	  	 	11	  
			
	 Section 2.07.
	  	Interest Payment and Record Dates	  	 	11	  
			
	 Section 2.08.
	  	No Sinking Fund	  	 	11	  
			
	 Section 2.09.
	  	Defaulted Interest	  	 	11	  
			
	 Section 2.10.
	  	CUSIP and ISIN Numbers	  	 	12	  
			
	 Section 2.11.
	  	Global Securities	  	 	12	  
			
	 Section 2.12.
	  	Ranking	  	 	12	  
			
	 Section 2.13.
	  	Additional Securities	  	 	12	  
		
	Article III OPTIONAL REDEMPTION; MANDATORY REDEMPTION	  	 	13	  
			
	 Section 3.01.
	  	Notice to Trustee	  	 	13	  
			
	 Section 3.02.
	  	Optional Redemption	  	 	13	  
			
	 Section 3.03.
	  	Mandatory Redemption	  	 	13	  
		
	 Article IV COVENANTS
	  	 	13	  
			
	 Section 4.01.
	  	Additional Covenants	  	 	13	  
		
	Article V MISCELLANEOUS	  	 	15	  
			
	 Section 5.01.
	  	Conflict of Any Provision of Indenture with Trust Indenture Act	  	 	15	  
			
	 Section 5.02.
	  	Duplicate Originals	  	 	15	  
			
	 Section 5.03.
	  	New York Law to Govern	  	 	15	  
			
	 Section 5.04.
	  	No Adverse Interpretation of Other Agreements	  	 	15	  
			
	 Section 5.05.
	  	Successors and Assigns of Company Bound by Supplemental Indenture	  	 	15	  
			
	 Section 5.06.
	  	Severability	  	 	15	  
			
	 Section 5.07.
	  	Effect of Headings	  	 	15	  

 Exhibit A — Form of Global Security

 Exhibit B — Form of Legend for Global Security 

  
 i 

 SUPPLEMENTAL INDENTURE NO. 2 (the “Supplemental Indenture”), dated
as of                     , between American Tower Corporation, a Delaware corporation (the “Company”), and The Bank
of New York Mellon Trust Company, N.A., a national banking association, as trustee (the “Trustee”). 

WITNESSETH THAT: 
 WHEREAS, the Company and the Trustee have executed and delivered a base indenture, dated as of May 13, 2010 (as amended, supplemented or otherwise modified from time to time, the “Base
Indenture,” and, together with this Supplemental Indenture, as amended, supplemented or otherwise modified from time to time, the “Indenture”) to provide for the future issuance of the Company’s senior debt securities
to be issued from time to time in one or more series; and 
 WHEREAS, pursuant to the terms of the Base Indenture, the Company
desires to provide for the establishment of a series of its Securities, to be titled as its “4.500% Senior Notes due 2018,” the form and substance of such Securities and the terms, provisions and conditions thereof to be set forth as
provided in the Indenture; 
 NOW, THEREFORE: 
 Each party agrees as follows for the benefit of the other party and for the equal and ratable benefit of the Holders of the Securities. 

ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE 
 Section 1.01. DEFINITIONS. 
 Capitalized terms used
herein without definition shall have the respective meanings ascribed to them in the Base Indenture. The following definitions supplement, and, to the extent inconsistent with, replace the definitions in Article I of the Base Indenture:

 “Additional Security Board Resolution” means resolutions duly adopted by the Board of Directors of the
Company and delivered to the Trustee in an Officers’ Certificate providing for issuance of Additional Securities. 

“Additional Security Supplemental Indenture” means a supplement to this Indenture duly executed and delivered by the
Company and the Trustee pursuant to Article 7 of the Base Indenture. 
 “Additional Securities” means the
Company’s Securities originally issued hereunder after the Issue Date pursuant to Section 2.13 hereof, except for Securities authenticated and delivered upon registration of, transfer of, or in exchange for, or in lieu of other Securities
pursuant to Section 3.07, 3.09, 7.05 or 9.06 of the Base Indenture, or 4.01(b) hereof, as specified in the relevant Additional Security Board Resolutions or Additional Security Supplemental Indenture issued therefor in accordance with this
Indenture. 
 “Adjusted EBITDA” means, for the 12-month period preceding the calculation date, for the Company
and its Subsidiaries on a consolidated basis in accordance with GAAP, the sum of (a) Net Income, plus (b) to the extent deducted in determining Net Income, the sum of (i) Interest Expense, (ii) income tax expense, including,
without limitation, taxes paid or accrued based on income, profits or capital, including state, franchise and similar taxes and foreign withholding taxes, (iii) depreciation and amortization (including, without limitation, amortization of
goodwill and other intangible assets), (iv) extraordinary losses and non-recurring non-cash charges and expenses, (v) all other non-cash charges, expenses and interest (including, without limitation, any non-cash losses in respect of
Commodity Agreements, Currency Agreements or Interest Rate Agreements, non-cash impairment charges, non-cash valuation charges for stock option grants or vesting of restricted stock awards or any other non-cash compensation charges, and losses from
the early extinguishment of Indebtedness) and (vi) non-recurring charges and expenses, restructuring charges, transaction expenses (including, without limitation, transaction expenses incurred in connection with any merger or acquisition) and
underwriters’ fees or discounts, and severance and retention payments in connection with any merger or acquisition, in each case for such period, less extraordinary gains and cash payments (not otherwise deducted in determining net income) made
during such period with respect to non-cash 

 
charges that were added back in a prior period; provided, however, (I) with respect to any Person that became a Subsidiary, or was merged with or consolidated into the Company
or any Subsidiary, during such period, or any acquisition by the Company or any Subsidiary of the assets of any Person during such period, “Adjusted EBITDA” shall, at the option of the Company in respect of any or all of the foregoing,
also include the Adjusted EBITDA of such Person or attributable to such assets, as applicable, during such period as if such acquisition, merger or consolidation had occurred on the first day of such period and (II) with respect to any Person that
has ceased to be a Subsidiary during such period, or any material assets of the Company or any Subsidiary sold or otherwise disposed of by the Company or any Subsidiary during such period, “Adjusted EBITDA” shall exclude the Adjusted
EBITDA of such Person or attributable to such assets, as applicable, during such period as if such sale or disposition of such Subsidiary or such assets had occurred on the first day of such period. 

“Adjusted Treasury Rate” means, with respect to any redemption date: 

(1) the yield, under the heading which represents the average for the immediately preceding week, appearing in the most recently
published statistical release designated “H.15(519)” or any successor publication which is published weekly by the Board of Governors of the Federal Reserve System and which establishes yields on actively traded United States Treasury
securities adjusted to constant maturity under the caption “Treasury Constant Maturities,” for the maturity corresponding to the Comparable Treasury Issue (if no maturity is within three months before or after the Remaining Life, yields
for the two published maturities most closely corresponding to the Comparable Treasury Issue shall be determined and the Adjusted Treasury Rate shall be interpolated or extrapolated from such yields on a straight line basis, rounding to the nearest
month); or 
 (2) if such release (or any successor release) is not published during the week preceding the calculation date or
does not contain such yields, the rate per annum equal to the semi-annual equivalent yield to maturity of the Comparable Treasury Issue, calculated using a price for the Comparable Treasury Issue (expressed as a percentage of its principal amount)
equal to the Comparable Treasury Price for such redemption date. 
 The Adjusted Treasury Rate shall be calculated on the third
Business Day preceding the redemption date. 
 “Beneficial Owner” has the meaning assigned to such term in Rule
13d-3 and Rule 13d-5 under the Exchange Act, except that in calculating the beneficial ownership of any particular “person” (as that term is used in Section 13(d)(3) of the Exchange Act), such “person” will be deemed to have
beneficial ownership of all securities that such “person” has the right to acquire by conversion or exercise of other securities, whether such right is currently exercisable or is exercisable only upon the occurrence of a subsequent
condition. The terms “Beneficially Owns” and “Beneficially Owned” have a corresponding meaning. 

“Capital Lease Obligation” means, at the time any determination is to be made, the amount of the liability in respect of
a capital lease that would at that time be required to be capitalized on a balance sheet in accordance with GAAP. 

“Capital Stock” means: 
 (1) in the case of a corporation, corporate stock; 
 (2) in the case of an
association or business entity, any and all shares, interests, participations, rights or other equivalents (however designated) of corporate stock; 
 (3) in the case of a partnership or limited liability company, partnership or membership interests (whether general or limited); and 

(4) any other interest or participation that confers on a Person the right to receive a share of the profits and losses of, or
distributions of assets of, the issuing Person. 
 “Change of Control” means the occurrence of any of the
following: 

 (1) the adoption of a plan relating to the liquidation or dissolution of the Company;

 (2) any “person,” as such term is used in Section 13(d)(3) of the Exchange Act, becomes the Beneficial Owner,
directly or indirectly, of more than 50% of the voting power of the Voting Stock of the Company; provided that a transaction in which the Company becomes a Subsidiary of another Person shall not constitute a Change of Control if (a) the
stockholders of the Company immediately prior to such transaction Beneficially Own, directly or indirectly through one or more intermediaries, 50% or more of the voting power of the outstanding Voting Stock of such other Person of whom the Company
is a Subsidiary immediately following such transaction and (b) immediately following such transaction no person (as defined above) other than such other Person, Beneficially Owns, directly or indirectly, more than 50% of the voting power of the
Voting Stock of the Company; or 
 (3) the first day on which a majority of the members of the Board of Directors of the Company
are not Continuing Directors. 
 “Change of Control Offer” has the meaning set forth in Section 4.01(b).

 “Change of Control Payment” has the meaning set forth in Section 4.01(b). 

“Change of Control Payment Date” has the meaning set forth in Section 4.01(b). 

“Change of Control Triggering Event” means the occurrence of both a Change of Control and a Ratings Decline (as defined
below). 
 “Commodity Agreement” of any Person means any commodity forward contract, commodity swap agreement,
commodity option agreement or other similar agreement or arrangement to which such Person is a party. 
 “Comparable
Treasury Issue” means the United States Treasury security selected by an Independent Investment Banker (as defined below) as having a maturity comparable to the remaining term of the Securities that would be utilized, at the time of
selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the Securities (“Remaining Life”). 

“Comparable Treasury Price” means, for any redemption date, (1) the average of four Reference Treasury Dealer
Quotations (as defined below) for such redemption date, after excluding the highest and lowest Reference Treasury Dealer Quotations, or (2) if the Independent Investment Banker obtains fewer than four such Reference Treasury Dealer Quotations,
the average of all such quotations. 
 “Continuing Directors” means a director who either was a member of the
Company’s Board of Directors on the Issue Date or who becomes a member of the Company’s Board of Directors subsequent to the Issue Date and whose appointment, election or nomination for election by the Company’s stockholders is duly
approved by a majority of the Continuing Directors on the Company’s Board of Directors at the time of such approval, either by specific vote or by approval of the proxy statement issued by the Company on behalf of the Company’s Board of
Directors in which such individual is named as nominee for director. Solely for purposes of this definition, the term “Board of Directors” shall be defined without regard to the words “or any authorized committee of the Board of
Directors of such Person or any officer of such Person duly authorized by the Board of Directors of such Person to take a specific action” in such definition. 
 “Currency Agreement” of any Person means any foreign exchange contract, currency swap agreement or other similar agreement or arrangement as to which such Person is a party. 

“Default” means any event which is, or after notice or passage of time or both would be, an Event of Default.

 “Disqualified Stock” means any Capital Stock that, by its terms (or by the terms of any security into which
it is convertible, or for which it is exchangeable, in each case at the option of the holder of the Capital Stock), or upon the happening of any event, matures or is mandatorily redeemable, pursuant to a sinking fund obligation or

 
otherwise, or redeemable at the option of the holder of the Capital Stock, in whole or in part, on or prior to the Stated Maturity of the Securities. 

“DTC” means The Depository Trust Company, its nominees and successors. 

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the SEC
promulgated thereunder. 
 “Existing SpectraSite Indebtedness” means that certain mortgage loan more fully
described in the Offering Memorandum dated April 27, 2007 regarding the $1,750,000,000 American Tower Trust I Commercial Mortgage Pass-Through Certificates, Series 2007-1. 

“Fair Market Value” means, with respect to any asset, the price that (after taking into account any liabilities relating
to such asset) would be paid in an arm’s-length transaction between an informed and willing seller under no compulsion to sell and an informed and willing buyer under no compulsion to buy, as determined in good faith by the Board of Directors,
whose determination shall be conclusive if evidenced by a Board Resolution. 
 “Fitch” means Fitch, Inc. or any
successor to the rating agency business thereof. 
 “Foreign Subsidiary” means, with respect to any Person,
(a) any Subsidiary of such Person that is not organized or existing under the laws of, and whose principal business is conducted outside of, the United States, any state thereof, the District of Columbia, or any territory thereof (for purposes
of this definition only, the “United States”), or (b) any Subsidiary of such Person that is organized or existing under the laws of the United States whose only material assets are the Capital Stock of Foreign Subsidiaries meeting
clause (a) of this definition. 
 “GAAP” means generally accepted accounting principles set forth in the
standards, statements and pronouncements of the Financial Accounting Standards Board, or in such other statements by such other entity as may be approved by a significant segment of the accounting profession of the United States, which are in effect
on the Issue Date. 
 “Guarantee” means a guarantee (other than by endorsement of negotiable instruments for
collection in the ordinary course of business), direct or indirect, in any manner (including, without limitation, by way of a pledge of assets or through letters of credit or reimbursement agreements in respect thereof), of all or any part of any
Indebtedness. The term “Guarantee” used as a verb has a corresponding meaning. 
 “Indebtedness”
means, with respect to any specified Person, any indebtedness of such Person, whether or not contingent: 
 (1) in respect of
borrowed money; 
 (2) evidenced by bonds, notes, debentures or similar instruments or letters of credit (or reimbursement
agreements in respect thereof); 
 (3) in respect of banker’s acceptances; 

(4) representing Capital Lease Obligations; 
 (5) representing the balance deferred and unpaid of the purchase price of any property, except any such balance that constitutes an accrued expense or trade payable; 

(6) representing obligations under any Interest Rate Agreements, Commodity Agreements and Currency Agreements except for those entered
into for the purpose of fixing, hedging or swapping interest rate, commodity price or foreign currency exchange risk; or 

 (7) in respect of all Disqualified Stock issued by such Person with the amount of
Indebtedness represented by such Disqualified Stock being equal to the greater of its voluntary or involuntary liquidation preference and its maximum fixed repurchase price, but excluding accrued dividends, if any; provided that (a) if the
Disqualified Stock does not have a fixed repurchase price, such maximum fixed repurchase price shall be calculated in accordance with the terms of the Disqualified Stock as if the Disqualified Stock were purchased on any date on which Indebtedness
shall be required to be determined pursuant to the applicable indenture, and (b) if the maximum fixed repurchase price is based upon, or measured by, the fair market value of the Disqualified Stock, the fair market value shall be the Fair
Market Value thereof; 
 if and to the extent any of the preceding items (other than letters of credit and obligations under
Interest Rate Agreements, Commodity Agreements and Currency Agreements) would appear as a liability upon a balance sheet of such Person prepared in accordance with GAAP. In addition, the term “Indebtedness” includes all Indebtedness of
others secured by a Lien on any asset of such Person whether or not such Indebtedness is assumed by such Person (the amount of such Indebtedness as of any date being deemed to be the lesser of the Fair Market Value of such property or assets as of
such date or the principal amount of such Indebtedness of such other Person so secured) and, to the extent not otherwise included, the Guarantee by such Person of any Indebtedness of any other Person. 

The amount of any Indebtedness outstanding as of any date shall be: 

(1) the accreted value of the Indebtedness, in the case of any Indebtedness issued with original issue discount; and 

(2) the principal amount of the Indebtedness, together with any interest on the Indebtedness that is more than 30 days past due, in the
case of any other Indebtedness. 
 “Independent Investment Banker” means one of the Reference Treasury Dealers
appointed by the Company. 
 “Interest Expense” means, for any period, all cash interest expense (including
imputed interest with respect to Capital Lease Obligations and commitment fees) with respect to any Indebtedness of the Company and of its Subsidiaries’ Indebtedness on a consolidated basis during such period pursuant to the terms of such
Indebtedness. 
 “Interest Rate Agreement” of any Person means any interest rate protection agreement, interest
rate future agreement, interest rate option agreement, interest rate swap agreement, interest rate cap agreement, interest rate collar agreement, interest rate hedge agreement, option or future contract or other similar agreement or arrangement as
to which such Person is a party. 
 “Investment Grade Rating” means a rating equal to or greater than BBB- by
S&P and Fitch and Baa3 by Moody’s or the equivalent thereof under any new ratings system if the ratings system of any such agency shall be modified after the date hereof, or the equivalent rating or any other Ratings Agency selected by the
Company as provided in the definition of Ratings Agency. 
 “Issue Date” means
                    . 
 “Licenses” means, collectively, any telephone, microwave, radio transmissions, personal communications or other license, authorization, certificate of compliance, franchise, approval or
permit, whether for the construction, ownership or operation of any communications tower facilities, granted or issued by the Federal Communications Commission (or other similar or successor agency of the federal government administering the
Communications Act of 1934 or any similar or successor federal statute) and held by the Company or any of its Subsidiaries. 

“Lien” means, with respect to any property or assets, including Capital Stock, any mortgage, lien, pledge, charge,
security interest or encumbrance of any kind in respect of such asset, whether or not filed, recorded or otherwise perfected under applicable law (including any conditional sale or other title retention agreement, any lease in the nature thereof,
any option or other agreement to sell or give a security interest in and any filing of or 

 
agreement to give any financing statement under the Uniform Commercial Code (or equivalent statutes) of any jurisdiction). 

“Moody’s” means Moody’s Investors Services, Inc. or any successor to the rating agency business thereof.

 “Net Income” means, for any period of determination, net income (loss) of the Company and its Subsidiaries,
on a consolidated basis, determined in accordance with GAAP. 
 “Newly Created Subsidiary” means a newly
created direct or indirect Subsidiary of the Company that is formed or organized after the Issue Date; provided that neither the Company nor any Subsidiary of the Company shall have transferred, or may in the future transfer, any assets (other than
cash or cash equivalents) to such Newly Created Subsidiary for so long as such Newly Created Subsidiary remains designated as an Unrestricted Subsidiary. 
 “Original Securities” has the meaning set forth in Section 2.02. 
 “Paying Agent” has the meaning set forth in Section 2.03. 

“Permitted Amount” means, on any date, an amount equal to 3.5 times Adjusted EBITDA as of the most recent fiscal quarter
for which financial statements of the Company are internally available immediately preceding such date. 
 “Permitted
Liens” means: 
 (1) Liens in favor of the Company or its Subsidiaries; 

(2) Liens existing on the Issue Date (other than those securing Existing SpectraSite Indebtedness) and renewals and replacements thereof;

 (3) Liens for taxes, assessments or governmental charges or claims that are not yet delinquent or that are being contested in
good faith by appropriate proceedings promptly instituted and diligently conducted; provided that any reserve or other appropriate provision as shall be required in conformity with GAAP shall have been made therefor; 

(4) Liens of carriers, warehousemen, mechanics, vendors (solely to the extent arising by operation of law), laborers and materialmen
incurred in the ordinary course of business for sums not yet due or being diligently contested in good faith, if reserves or appropriate provisions shall have been made therefor; 

(5) Liens incurred in the ordinary course of business in connection with worker’s compensation and unemployment insurance, social
security obligations, assessments or government charges which are not overdue for more than 60 days; 
 (6) restrictions on the
transfer of Licenses or assets of the Company or any of its Subsidiaries imposed by any of the Licenses as in effect on the Issue Date or imposed by the Communications Act of 1934, any similar or successor federal statute or the rules and
regulations of the Federal Communications Commission (or other similar or successor agency of the federal government administering such Act or successor statute) thereunder, all as the same may be in effect from time to time; 

(7) Liens arising by operation of law in favor of purchasers in connection with the sale of an asset; provided, however, that such Lien
only encumbers the property being sold; 
 (8) Liens to secure performance of statutory obligations, surety or appeal bonds,
performance bonds, bids or tenders; 
 (9) judgment Liens; 

 (10) Liens in connection with escrow or security deposits made in connection with any
acquisition of assets; 
 (11) Liens securing Indebtedness since the Issue Date represented by Capital Lease Obligations,
mortgage financings or purchase money obligations, in each case incurred for the purpose of financing all or any part of the purchase price or cost of construction or improvement of property, plant or equipment used in any business of the Company or
any Subsidiary of the Company in an aggregate principal amount, including all Indebtedness incurred to refund, refinance or replace any other Indebtedness incurred pursuant to this clause (11), not to exceed $500.0 million at any time outstanding
for the Company and any Subsidiaries of the Company; 
 (12) Liens securing obligations under Interest Rate Agreements,
Commodity Agreements and Currency Agreements not for speculative purposes; 
 (13) easements, rights-of-way, zoning
restrictions, licenses or restrictions on use and other similar encumbrances on the use of real property that: 
 (a) are not
incurred in connection with the borrowing of money or the obtaining of advances or credit (other than trade credit in the ordinary course of business); and 
 (b) do not in the aggregate materially detract from the value of the property or materially impair the use thereof in the operation of business by the Company and its Subsidiaries; 

(14) Liens on property of the Company or a Subsidiary of the Company at the time the Company or such Subsidiary acquired the property,
including acquisition by means of a merger or consolidation with or into the Company or any Subsidiary, or an acquisition of assets, and any replacement thereof, provided, however, that such Liens are not created, incurred or assumed in connection
with or in contemplation of such acquisition, and provided further that such Liens may not extend to any other property owned by the Company or any Subsidiary of the Company; 
 (15) leases and subleases of real property in the ordinary course of business (for the avoidance of doubt, excluding sale and lease-back transactions) which do not materially interfere with the ordinary
conduct of the business; and 
 (16) banker’s Liens, rights of set-off or similar rights and remedies as to deposit
accounts or other funds maintained with a depositary institution; provided that: 
 (a) such deposit account is
not a dedicated cash collateral account and is not subject to restrictions against access in excess of those set forth by regulations promulgated by the Federal Reserve Board or other applicable law; and 

(b) such deposit account is not intended to provide collateral to the depositary institution. 

“Person” or “person” means any individual, corporation, partnership, limited liability company, joint
venture, association, joint-stock company, trust, estate, unincorporated organization or government or other agency or political subdivision thereof or any other entity. 
 “Ratings Agencies” means (1) S&P, Moody’s and Fitch; and (2) if any of S&P, Moody’s and Fitch ceases to rate the Securities or ceases to make a rating on the
Securities publicly available, an entity registered as a “nationally recognized statistical rating organization” (registered as such pursuant to Rule 17g-1 of the Exchange Act) then making a rating on the Securities publicly available
selected by the Company (as certified by an Officers’ Certificate), which shall be substituted for S&P, Moody’s or Fitch, as the case may be. 
 “Ratings Decline” means the occurrence of the following on, or within 90 days after, the date of the public notice of the occurrence of a Change of Control or of the intention by the
Company or any third-party to effect a Change of Control (which period shall be extended for so long as the rating of the securities is under publicly 

 
announced consideration for possible downgrade by any of the Ratings Agencies if such period exceeds 90 days): (1) in the event that the Securities have an Investment Grade Rating by all
three Ratings Agencies, the Securities cease to have an Investment Grade Rating by two of the three Rating Agencies, (2) in the event that the Securities have an Investment Grade Rating by only two Ratings Agencies, the Securities cease to have
an Investment Grade Rating by both such Rating Agencies, or (3) in the event that the Securities do not have an Investment Grade Rating, the rating of the Securities by two of the three Ratings Agencies (or if there are less than three Rating
Agencies rating the securities, the rating of each Rating Agency) decreases by one or more gradations (including gradations within ratings categories as well as between rating categories) or is withdrawn. 

“Reference Treasury Dealer” means any of the primary U.S. Government securities dealers in New York City. 

“Reference Treasury Dealer Quotations” means, with respect to each Reference Treasury Dealer and any redemption date,
the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Independent Investment Banker at
5:00 p.m., New York City time, on the third Business Day preceding such redemption date. 
 “Registrar” has the
meaning set forth in Section 2.03. 
 “S&P” means Standard & Poor Rating Services, a division
of The McGraw-Hill Companies, Inc., or any successor to the rating agency business thereof. 
 “SEC” means the
Securities and Exchange Commission. 
 “Securities” means the 4.500% Senior Notes due 2018 established by this
Supplemental Indenture and issued by the Company pursuant to the Indenture. 
 “Securities Act” means the
Securities Act of 1933, as amended, and the rules and regulations of the SEC promulgated thereunder. 
 “Securities
Agent” means any Registrar, Paying Agent, or co-Registrar or co-agent. 
 “Stated Maturity” means,
with respect to the payment of principal on the Securities, January 15, 2018. 
 “Subsidiary” means, with
respect to any Person, (1) any corporation, limited liability company, association or other business entity of which more than 50% of the voting power of the outstanding Voting Stock is owned, directly or indirectly, by such Person and one or
more other Subsidiaries of such Person or (2) any partnership (A) the sole general partner or the managing general partner of which is such Person or a Subsidiary of such Person or (B) the only general partners of which are such
Person or one or more Subsidiaries of such Person (or any combination thereof). The term “Subsidiary” with respect to the Company shall not include any Unrestricted Subsidiary. 

“TIA” means the Trust Indenture Act of 1939 (15 U.S. Code §§ 77aaa-77bbbb) as amended and in effect from time
to time. 
 “Unrestricted Subsidiary” means (a) any Foreign Subsidiary or Newly Created Subsidiary of the
Company that is designated by the Board of Directors as an Unrestricted Subsidiary until such time as the Board of Directors may designate it to be a Subsidiary, provided that no Default or Event of Default would occur or be existing following such
designation, and (b) any subsidiary of an Unrestricted Subsidiary. Any such designation by the Board of Directors shall be evidenced to the Trustee by filing a Board Resolution with the Trustee giving effect to such designation. At the time of
designation of an Unrestricted Subsidiary as a Subsidiary, such Subsidiary shall be deemed to incur outstanding Indebtedness and grant any existing Liens. 

 “Voting Stock” of any Person as of any date means the Capital Stock of such
Person that is normally entitled to vote in the election of the board of directors, managers or trustees of such Person. 

Section 1.02. INCORPORATION BY REFERENCE OF TRUST
INDENTURE ACT. 
 Whenever this Indenture refers to a provision of the TIA, the provision is
incorporated by reference in and made a part of this Indenture. 
 The following TIA terms used in this Indenture have the
following meanings: 
 “Commission” means the SEC; 

“indenture securities” means the Securities; 
 “indenture security holder” means a Securityholder or a Holder; 

“indenture to be qualified” means this Indenture; and 

“obligor” on the indenture securities means the Company or any successor. 

All other terms used in this Indenture that are defined by the TIA, defined by the TIA by reference to another statute or defined by SEC
rule under the TIA and not otherwise defined herein have the meanings so assigned to them. 
 Section 1.03. RULES
OF CONSTRUCTION. 
 Unless the context otherwise requires: 

(i) a term has the meaning assigned to it; 

(ii) an accounting term not otherwise defined has the meaning assigned to it in accordance with generally accepted
accounting principles in effect from time to time; 
 (iii) “or” is not exclusive; 

(iv) “including” means “including without limitation”; 

(v) words in the singular include the plural and in the plural include the singular; 

(vi) provisions apply to successive events and transactions; 

(vii) “herein,” “hereof” and other words of similar import refer to this Indenture as a whole and not
to any particular Article, Section or other subdivision of this Indenture; and 
 (viii) references to currency
shall mean the lawful currency of the United States of America, unless the context requires otherwise. 
 In addition, to the
extent that the terms of this Supplemental Indenture are inconsistent or conflict with the terms of the Base Indenture, then, for purposes of the Securities, the terms of this Supplemental Indenture shall apply to the extent of such inconsistency or
conflict. 

 ARTICLE II THE SECURITIES 
 Section 2.01. FORM AND DATING. 
 The Securities and the Trustee’s certificate of authentication shall be substantially in the form set forth in Exhibit A, which is incorporated in and forms a part of this Indenture. The
Securities may have notations, legends or endorsements required by law, stock exchange rule or usage. Each Security shall be dated the date of its authentication. 
 The Securities shall be issued initially in the form of one or more Global Securities, substantially in the form set forth in Exhibit A, deposited with the Trustee, as custodian for DTC (who shall be
the initial Depositary with respect to the Securities), duly executed by the Company and authenticated by the Trustee and bearing the legend set forth in Exhibit B. The aggregate principal amount of the Global Security may from time to time be
increased or decreased by adjustments made on the records of the Trustee, as custodian for the Depository, as hereinafter provided; provided, that, except as permitted by Section 2.13, in no event shall the aggregate principal amount of
the Global Security or Global Securities exceed $1,000,000,000. 
 Securities in the form of Physical Securities issued in
exchange for Securities represented by interests in a Global Security pursuant to Section 3.08 of the Base Indenture may be issued in the form of permanent certificated Securities in registered form in substantially the form set forth in
Exhibit A and, if applicable, bearing any legends required hereby. 
 The Securities shall be denominated in Dollars, and
all cash payments due thereon shall be made in Dollars. The Securities shall be issuable only in registered form without interest coupons and only in denominations of $2,000 principal amount and integral multiples of $1,000 in excess thereof.

 Section 2.02. EXECUTION AND AUTHENTICATION OF SECURITIES.

 Upon a Company Order, the Trustee shall authenticate Securities for original issue in the aggregate principal amount of
$1,000,000,000 (the “Original Securities”). 
 Section 2.03. REGISTRAR AND
PAYING AGENT. 
 The Company shall maintain an office or agency where Securities may be
presented for registration of transfer or for exchange (“Registrar”) and an office or agency where Securities may be presented for payment (“Paying Agent”). The Corporate Trust Office shall serve as the office or
agency for the aforementioned purposes. The Registrar shall keep a register of the Securities and of their transfer and exchange. The Company may appoint or change one or more co-Registrars, one or more additional paying agents upon reasonable prior
written notice to the Trustee and may act in any such capacity on its own behalf. The term “Registrar” includes any co-Registrar and the term “Paying Agent” includes any additional paying agent. 

The Company shall enter into an appropriate agency agreement with any Securities Agent not a party to this Indenture. The agreement shall
implement the provisions of this Indenture that relate to such Securities Agent. The Company shall notify the Trustee in writing of the name and address of any Securities Agent not a party to this Indenture. If the Company fails to maintain a
Registrar or Paying Agent, the Trustee shall act as such. 
 The Company initially appoints the Trustee as Paying Agent and
Registrar. 
 For purposes of the Securities, the Payment Office shall be the Corporate Trust Office. 

Section 2.04. PAYING AGENT TO HOLD MONEY IN
TRUST. 
 Each Paying Agent shall hold in trust for the benefit of the Securityholders or the Trustee all
moneys held by the Paying Agent for the payment of the Securities, and shall notify the Trustee in writing of any Default by the Company in making any such payment. While any such Default continues, the Trustee may require a Paying Agent

 
to pay all money held by it to the Trustee. The Company at any time may require a Paying Agent to pay all money held by it to the Trustee. Upon payment over to the Trustee, the Paying Agent shall
have no further liability for such money. If the Company acts as Paying Agent, it shall segregate and hold as a separate trust fund all money held by it as Paying Agent. 
 Section 2.05. TRANSFER AND EXCHANGE. 
 The Company or the Trustee, as the case may be, shall not be required to register the transfer of or exchange any Security selected for redemption in whole or in part, in accordance with this Indenture,
except the unredeemed portion of Securities being redeemed in part. 
 No service charge shall be made for any transfer or
exchange of Securities, but the Company may require payment of a sum sufficient to cover any transfer tax or similar governmental charge that may be imposed in connection with any transfer or exchange of Securities, other than exchanges pursuant to
Section 3.11 or Section 7.05 of the Base Indenture or Section 4.01(b) or Article III, not involving any transfer. 

Section 2.06. OUTSTANDING SECURITIES 
 The Securities outstanding at any time are all the Securities authenticated by the Trustee except for those canceled by it, those delivered to it for cancellation, those reductions in the interest in a
Global Security effected by the Trustee in accordance with the provisions hereof, and those described in this Section and the Base Indenture as not outstanding. Except as set forth in Section 3.13 of the Base Indenture, a Security does not
cease to be outstanding because the Company or an affiliate of the Company holds the Security. 
 If a Security is replaced
pursuant to Section 3.09 of the Base Indenture, it ceases to be outstanding unless the Trustee receives proof satisfactory to it that the replaced Security is held by a bona fide purchaser. 

If the principal amount of any Security is considered paid under Section 4.01 of the Base Indenture, it ceases to be outstanding and
interest on it ceases to accrue. 
 If the Paying Agent (other than the Company, a Subsidiary or an affiliate of any thereof)
holds, on a redemption date or maturity date, money sufficient to pay Securities payable on that date, then on and after that date such Securities shall be deemed to be no longer outstanding and shall cease to accrue interest. 

Section 2.07. INTEREST PAYMENT AND RECORD DATES. 

The Interest Payment Dates for the Securities shall be January 15 and July 15 of each calendar year, beginning with, and
including, July 15, 2011. The Regular Record Date for an Interest Payment Date that falls on January 15 shall be the immediately preceding January 1, and the Regular Record Date for an Interest Payment Date that falls on July 15
shall be the immediately preceding July 1. 
 Section 2.08. NO SINKING FUND.

 There shall be no sinking fund with respect to the Securities. 
 Section 2.09. DEFAULTED INTEREST. 
 If
and to the extent the Company defaults in a payment of interest on the Securities, the Company shall pay in cash the defaulted interest in any lawful manner plus, to the extent not prohibited by applicable statute or case law, interest on such
defaulted interest at the rate provided in the Securities and in this Section 2.09. The Company may pay the defaulted interest (plus interest on such defaulted interest) to the persons who are Securityholders on a subsequent record date as
provided in Section 3.05(c) of the Base Indenture. 
 The Company shall pay interest (including post-petition interest in
any proceeding under any Bankruptcy Law) on overdue principal on the Securities at the rate equal to 1% per annum in excess of the then applicable 

 
interest rate on the Securities of that series to the extent lawful; it shall pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of
interest (without regard to any applicable grace period) on the Securities of any series at the same rate to the extent lawful. 

Section 2.10. CUSIP AND ISIN NUMBERS. 
 The Company in issuing the Securities may use one or more CUSIP and ISIN numbers, and, if so, the Trustee shall use the CUSIP and ISIN numbers in notices of repurchase or exchange as a convenience to
Holders; provided, however, that no representation is hereby deemed to be made by the Trustee as to the correctness or accuracy of the CUSIP and ISIN numbers printed on the notice or on the Securities; provided further, that
reliance may be placed only on the other identification numbers printed on the Securities, and the effectiveness of any such notice shall not be affected by any defect in, or omission of, such CUSIP and ISIN numbers. The Company shall promptly
notify the Trustee of any change in the CUSIP and ISIN numbers. 
 Section 2.11. GLOBAL SECURITIES.

 The Securities shall initially be issued in the form of one of more Global Securities, and the provisions of the Base
Indenture (including, but not limited to, Section 3.06 and Section 3.08) relating to Global Securities shall apply to the Securities. 

Section 2.12. RANKING. 
 The indebtedness of the Company arising under or in connection with this Indenture and every outstanding Security issued under this Indenture from time to time constitutes and will constitute a senior
unsecured obligation of the Company, ranking pari passu in right of payment with each other and with all other existing and future senior unsecured obligations of the Company. Unless the context otherwise requires, the Securities shall be
considered collectively to be a single class for all purposes of this Indenture, including without limitation waivers, amendments, redemptions and Change of Control Offers. 
 Section 2.13. ADDITIONAL SECURITIES. 

The Company may, from time to time, subject to compliance with any other applicable provisions of this Indenture, without the consent of
the Holders, create and issue pursuant to this Indenture additional securities (“Additional Securities”) having terms and conditions identical to those of the Securities, except that Additional Securities: 

(i) may have a different issue date from the Securities; 
 (ii) may have a different amount of interest payable on the first Interest Payment Date after issuance than is payable on other Securities; and 

(iii) may have terms specified in the Additional Securities Board Resolution or Additional Securities Supplemental Indenture for such
Additional Securities making appropriate adjustments to Article II and Exhibit A (and related definitions) applicable to such Additional Securities in order to conform to and ensure compliance with the Securities Act (or other applicable securities
laws) and any other agreement applicable to such Additional Securities, which are not adverse in any material respect to the Holder of any Securities (other than such Additional Securities); 

provided, that no adjustment pursuant to this Section 2.13 shall cause such Additional Securities to constitute, as
determined pursuant to an Opinion of Counsel, a different class of securities than the Original Securities for U.S. federal income tax purposes. The Original Securities and any Additional Securities would rank equally and ratably and would be
treated as a single series of debt securities for all purposes under the Indenture. 

 ARTICLE III OPTIONAL REDEMPTION; MANDATORY REDEMPTION 

Section 3.01. NOTICE TO TRUSTEE 

If the Company elects to redeem Securities pursuant to the optional redemption provisions of Section 3.02 hereof, it shall furnish to
the Trustee, at least 30 days but not more than 60 days before a redemption date, an Officers’ Certificate setting forth (1) the redemption date, (2) the principal amount of Securities to be redeemed and (3) the redemption price
(expressed as a percentage of the principal amount). 
 Section 3.02. OPTIONAL REDEMPTION. 

(a) The Securities are redeemable at the Company’s election, in whole or in part, at any time at a redemption price equal to the
greater of: 
 (1) 100% of the principal amount of the Securities to be redeemed then outstanding; and

 (2) as determined by an Independent Investment Banker, the sum of the present values of the remaining
scheduled payments of principal and interest on the securities to be redeemed (not including any portion of such payments of interest accrued to the date of redemption) discounted to the redemption date on a semiannual basis (assuming a 360-day year
consisting of twelve 30-day months) at the Adjusted Treasury Rate for such securities, plus 40 basis points; 
 plus, in either of the above
cases, accrued and unpaid interest to the date of redemption on the securities to be redeemed. 
 If the optional redemption
date is on or after a Regular Record Date and on or before the related Interest Payment Date, the accrued and unpaid interest, if any, will be paid to the person in whose name the security is registered at the close of business on such Regular
Record Date. 
 (b) Any redemption pursuant to this Section 3.02 shall be made pursuant to Section 3.01 hereof and the
provisions of Article 9 of the Base Indenture. 
 Section 3.03. MANDATORY REDEMPTION. 

The Company shall not be required to make mandatory redemption or sinking fund payments with respect to the Securities. 

ARTICLE IV COVENANTS 

Section 4.01. ADDITIONAL COVENANTS. 
 In addition to those Covenants set forth in Article 4 of the Base Indenture, the Company shall comply with following covenants: 
 (a) Limitation on Liens. 
 The Company shall not, and shall not permit any
of its Subsidiaries to, allow any Lien on any of the Company’s or its Subsidiaries’ property or assets (which includes Capital Stock) securing Indebtedness, unless the Lien secures the Securities equally and ratably with, or prior to, any
other Indebtedness secured by such Lien, so long as such other Indebtedness is so secured, other than Permitted Liens. 

Notwithstanding the foregoing, the Company may, and may permit any of its Subsidiaries to, incur Liens securing Indebtedness without
equally and ratably securing the Securities if, after giving effect to the incurrence of such Liens, the aggregate amount (without duplication) of the Indebtedness secured by Liens (other than Permitted Liens) on the property or assets (which
includes Capital Stock) of the Company and its Subsidiaries shall not exceed 

 
the Permitted Amount at the time of the incurrence of such Liens (it being understood that Liens securing Existing SpectraSite Indebtedness shall be deemed to be incurred pursuant to this
paragraph). For the avoidance of doubt, “incur” means to create, incur, issue, assume, guarantee or otherwise become directly liable, contingently or otherwise. 
 (b) Repurchase of the Securities Upon a Change of Control Triggering Event. 

Upon the occurrence of a Change of Control Triggering Event, each Holder of Securities shall have the right to require the Company to
repurchase all or any part, equal to $2,000 or an integral multiple of $1,000 thereafter, of that Holder’s Securities pursuant to an offer (the “Change of Control Offer”) on the terms set forth in this Indenture at an offer
price in cash equal to 101% of the aggregate principal amount of Securities repurchased plus accrued and unpaid interest on the Securities up to but excluding the applicable date of repurchase (the “Change of Control Payment”).
Within 30 days following any Change of Control Triggering Event, if the Company had not, prior to the Change of Control Triggering Event, sent a redemption notice for all the Securities in connection with an optional redemption permitted by
Section 3.02 hereof, the Company shall mail or caused to be mailed a notice to each registered Holder briefly describing the transaction or transactions that constitute a Change of Control Triggering Event and offering to repurchase Securities
on the date specified in such notice (the “Change of Control Payment Date”), which date shall be no earlier than 30 days and no later than 60 days from the date the notice is mailed, pursuant to the procedures required by this
Indenture and described in such notice. 
 The Company shall comply with the requirements of Rule 14e-1 under the Exchange Act
and any other securities laws and regulations thereunder to the extent such laws and regulations are applicable to any Change of Control Offer. To the extent that the provisions of any securities laws or regulations conflict with the provisions of
this Section 4.01(b), the Company shall comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under the provisions of this Section 4.01(b) by virtue of such conflict. 

On the Change of Control Payment Date, the Company shall, to the extent lawful: 

(1) accept for payment all Securities or portions thereof properly tendered pursuant to the Change of Control Offer;

 (2) deposit with the Paying Agent an amount equal to the Change of Control Payment in respect of all
Securities or portions thereof properly tendered; and 
 (3) deliver or cause to be delivered to the Trustee the
Securities so accepted together with an Officers’ Certificate stating the aggregate principal amount of Securities or portions thereof being purchased by the Company. 
 The Paying Agent will promptly mail to each registered Holder of Securities so tendered the Change of Control Payment for such Securities, and the Trustee will promptly authenticate and mail (at the
Company’s expense), or cause to be transferred by book entry, to each Holder a new Security equal in principal amount to any unpurchased portion of the Securities surrendered, if any; provided that each such new Security shall be in a
principal amount of $2,000 or an integral multiple of $1,000 thereafter. Any Security so accepted for payment shall cease to accrue interest on and after the Change of Control Payment Date. 

This Section 4.01(b) shall be applicable, except as described in this Section 4.01(b), regardless of whether or not any other
provisions of this Indenture are applicable. 
 Notwithstanding the foregoing, the Company shall not be required to make a
Change of Control Offer upon a Change of Control Triggering Event if a third party makes the Change of Control Offer in the manner, at the times and otherwise in compliance with the requirements set forth in this Section 4.01(b) applicable to a
Change of Control Offer made by the Company and purchases all Securities properly tendered and not withdrawn under the Change of Control Offer. 

 The Company may make a Change of Control Offer in advance of a Change of Control Triggering
Event, and conditional upon the occurrence of such Change of Control Triggering Event, if a definitive agreement is in place for the Change of Control Triggering Event at the time of making the Change of Control Offer. 

ARTICLE V MISCELLANEOUS 

Section 5.01. CONFLICT OF ANY PROVISION OF INDENTURE
WITH TRUST INDENTURE ACT. 
 If and to the extent that any
provision of this Supplemental Indenture limits, qualifies or conflicts with another provision included in this Supplemental Indenture by operation of Sections 310 to 317, inclusive, of the Trust Indenture Act (an “incorporated
provision”), such incorporated provision shall control. 
 Section 5.02. DUPLICATE ORIGINALS.

 The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all
of them together represent the same agreement. Delivery of an executed counterpart by facsimile shall be effective as delivery of a manually executed counterpart thereof. 
 Section 5.03. NEW YORK LAW TO GOVERN. 
 THE INTERNAL LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE AND THE SECURITIES WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE
EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY. 
 Section 5.04. NO
ADVERSE INTERPRETATION OF OTHER AGREEMENTS. 

This Supplemental Indenture and the Base Indenture may not be used to interpret another indenture, loan or debt agreement of the Company
or its Subsidiaries or of any other Person. Any such indenture, loan or debt agreement may not be used to interpret this Supplemental Indenture or the Base Indenture. 
 Section 5.05. SUCCESSORS AND ASSIGNS OF COMPANY BOUND BY SUPPLEMENTAL
INDENTURE. 
 All the covenants, stipulations, promises and agreements in this Supplemental Indenture
contained by or in behalf of the Company shall bind their successors and assigns, whether so expressed or not. All the covenants, stipulations, promises and agreements in this Supplemental Indenture contained by or in behalf of the Trustee shall
bind their successors and assigns, whether so expressed or not. 
 Section 5.06. SEVERABILITY. 

If any provision of this Supplemental shall be held to be invalid, illegal or unenforceable under applicable law, then the remaining
provisions hereof shall be construed as though such invalid, illegal or unenforceable provision were not contained herein. 

Section 5.07. EFFECT OF HEADINGS. 

The Article and Section headings in this Supplemental Indenture and the Table of Contents are for convenience only and shall not affect
the construction hereof. 
 [The Remainder of This Page Intentionally Left Blank; Signature Page Follows]

 IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be
duly executed as of the date first above written. 
  

			
	AMERICAN TOWER CORPORATION
		
	By:	 	  

		 	Name:
		 	Title:
	
	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.,
AS TRUSTEE
		
	By:	 	  

		 	Name:
		 	Title:

 EXHIBIT A 

[Face of Security] 

AMERICAN TOWER CORPORATION 
 Certificate No. _______ 
 [INSERT GLOBAL SECURITY LEGEND AS REQUIRED] 

4.500% Senior Notes due 2018 
 CUSIP No.                      

ISIN No.
                     
 American Tower Corporation, a Delaware corporation (the “Company”), for value received, hereby promises to pay to Cede & Co., or its registered assigns, the principal sum of
                    
                     dollars
($                     ) on January 15, 2018 and to pay interest thereon, as provided on the reverse hereof, until the principal
and any unpaid and accrued interest are paid or duly provided for. 
 Interest Payment Dates: January 15 and July 15,
with the first payment to be made on July 15, 2011. 
 Regular Record Dates: January 1 and July 1. 

The provisions on the back of this certificate are incorporated as if set forth on the face hereof. 

 IN WITNESS WHEREOF, American Tower Corporation has caused this instrument to be duly
signed. 
  

			
	AMERICAN TOWER CORPORATION
		
	By:	 	  

		 	Name:
		 	Title:
		
	By:	 	  

		 	Name:
		 	Title:

 Dated _______________ 

 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 
 This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture. 
  

			
	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.,
as Trustee
		
	By:	 	  

		 	Authorized Signatory
		
	Dated:	 	  

 [REVERSE OF SECURITY] 
 AMERICAN TOWER CORPORATION 
 4.500% Senior Notes due 2018

 1. Interest. American Tower Corporation, a Delaware corporation (the “Company”), promises to
pay interest on the principal amount of this Security at the rate per annum shown above. The Company will pay interest, payable semi-annually in arrears, on January 15 and July 15 of each year, with the first payment to be made on
July 15, 2011. Interest on the Securities will accrue on the principal amount from, and including, the most recent date to which interest has been paid or provided for or, if no interest has been paid, from, and including,
                    , in each case to, but excluding, the next Interest Payment Date or the Stated Maturity for the payment of
principal on the Securities, as the case may be; provided that if there is no existing Default in the payment of interest, the Company shall pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue
principal and premium, if any, from time to time on demand at a rate that is 1% per annum in excess of the rate then in effect; it shall pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue
installments of interest (without regard to any applicable grace periods) from time to time on demand at the same rate to the extent lawful. Interest will be computed on the basis of a 360-day year of twelve 30-day months. 

2. Maturity. The Securities will mature on January 15, 2018. 

3. Method of Payment. Except as provided in the Indenture (as defined below), the Company will pay interest on the Securities
to the persons who are Holders of record of Securities at the close of business on the Regular Record Date set forth on the face of this Security next preceding the applicable Interest Payment Date. Holders must surrender Securities to a Paying
Agent to collect the principal amount. The Company will pay, in money of the United States that at the time of payment is legal tender for payment of public and private debts, all amounts due in cash with respect to the Securities, which amounts
shall be paid (A) in the case this Security is a Global Security, by wire transfer of immediately available funds to the account designated by the Depository for the Securities or its nominee; and (B) in the case this Security is a
Physical Security, by mailing a check to the address of the relevant Holder set forth in the Security Register for the Securities. The Company shall pay, in cash, interest on any overdue amount (including, to the extent permitted by applicable law,
overdue interest) at the rate borne by the Securities. 
 4. Paying Agent and Registrar. Initially, The Bank of New
York Mellon Trust Company, N.A. (the “Trustee”) will act as Paying Agent and Registrar. The Company may change any Paying Agent or Registrar upon prior written notice to the Trustee. The Company or any of its Subsidiaries may act in
any such capacity. 
 5. Indenture. The Company issued the Securities under an indenture dated as of May 13,
2010 (the “Base Indenture”) between the Company and the Trustee, as amended, supplemented or otherwise modified by the Supplemental Indenture No. 2 (the “Supplemental Indenture”), dated as of
                    , between the Company and the Trustee (the Base Indenture, as amended, supplemented or otherwise modified by the
Supplemental Indenture, the “Indenture”). The terms of the Securities include those stated in the Indenture and those made part of the Indenture by reference to the Trust Indenture Act of 1939 (15 U.S. Code §§
77aaa-77bbbb) (the “TIA”) as amended and in effect from time to time. The Securities are subject to all such terms, and Holders are referred to the Indenture and the TIA for a statement of such terms. To the extent any provision of
this Security conflicts with the express provisions of the Indenture, the provisions of the Indenture shall govern and be controlling. The Securities are general unsecured senior obligations of the Company. The Original Securities are limited to
$1,000,000,000 aggregate principal amount, except as otherwise provided in the Indenture (except for Securities issued in substitution for destroyed, mutilated, lost or stolen Securities). Subject to the conditions set forth in the Indenture and
without the consent of the Holders, the Company may issue Additional Securities. All Securities, including any Additional Securities, will be treated as a single class of securities under the Indenture. Terms used herein without definition and which
are defined in the Indenture have the meanings assigned to them in the Indenture. 

 6. Optional Redemption. The Securities are redeemable at the Company’s
election, in whole or in part, at any time at redemption price equal to the greater of: 
 (1) 100% of the principal amount of
the Securities to be redeemed then outstanding; and 
 (2) as determined by an Independent Investment Banker, the sum of the
present values of the remaining scheduled payments of principal and interest on the Securities to be redeemed (not including any portion of such payments of interest accrued to the date of redemption) discounted to the redemption date on a
semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the Adjusted Treasury Rate, plus 40 basis points; 
 plus, in
either of the above cases, accrued and unpaid interest to the date of redemption on the Securities to be redeemed. 
 If the
Company selects a redemption date that is on or after a Regular Record Date and on or before the related Interest Payment Date, the accrued and unpaid interest, if any, shall be paid to the person in whose name the Security is registered at the
close of business on such Regular Record Date. 
 The Company will mail or caused to be mailed a notice of redemption at least
30 days, but not more than 60 days, before the redemption date to each Holder of the Securities to be redeemed at its registered address, except that redemption notices may be mailed more than 60 days prior to a redemption date if the notice is
issued in connection with a defeasance of the Securities or a satisfaction and discharge of the Indenture. Notices of redemption may not be conditional. 
 Unless the Company defaults in payment of the redemption price, on and after the redemption date, interest will cease to accrue on the Securities or portions thereof called for redemption. Securities
called for redemption become due on the date fixed for redemption. 
 For purposes of the foregoing, the following terms shall
have the following meanings: 
 “Adjusted Treasury Rate” means, with respect to any redemption date:

 (1) the yield, under the heading which represents the average for the immediately preceding week, appearing in
the most recently published statistical release designated “H.15(519)” or any successor publication which is published weekly by the Board of Governors of the Federal Reserve System and which establishes yields on actively traded United
States Treasury securities adjusted to constant maturity under the caption “Treasury Constant Maturities,” for the maturity corresponding to the Comparable Treasury Issue (as defined below) (if no maturity is within three months before or
after the Remaining Life (as defined below), yields for the two published maturities most closely corresponding to the Comparable Treasury Issue shall be determined and the Adjusted Treasury Rate shall be interpolated or extrapolated from such
yields on a straight line basis, rounding to the nearest month); or 
 (2) if such release (or any successor
release) is not published during the week preceding the calculation date or does not contain such yields, the rate per annum equal to the semi-annual equivalent yield to maturity of the Comparable Treasury Issue, calculated using a price for the
Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price (as defined below) for such redemption date. 
 The Adjusted Treasury Rate shall be calculated on the third Business Day preceding the redemption date. 
 “Comparable Treasury Issue” means the United States Treasury security selected by an Independent Investment Banker (as defined below) as having a maturity comparable to the remaining term
of the Securities that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the Securities
(“Remaining Life”). 

 “Comparable Treasury Price” means, for any redemption date, (1) the
average of four Reference Treasury Dealer Quotations (as defined below) for such redemption date, after excluding the highest and lowest Reference Treasury Dealer Quotations, or (2) if the Independent Investment Banker obtains fewer than four
such Reference Treasury Dealer Quotations, the average of all such quotations. 
 “Independent Investment
Banker” means one of the Reference Treasury Dealers appointed by the Company. 
 “Reference Treasury
Dealer” means any of the primary U.S. Government securities dealers in New York City. 
 “Reference Treasury
Dealer Quotations” means, with respect to each Reference Treasury Dealer and any redemption date, the average, as determined by the Independent Investment Banker, of the bid and asked prices for the Comparable Treasury Issue (expressed in
each case as a percentage of its principal amount) quoted in writing to the Independent Investment Banker at 5:00 p.m., New York City time, on the third Business Day preceding such redemption date. 

7. No Mandatory Redemption. The Company shall not be required to make mandatory redemption payments with respect to the
Securities. 
 8. Repurchase at Option of Holder. Upon the occurrence of a Change of Control Triggering Event, and
subject to certain conditions set forth in the Indenture, the Company will be required to offer to purchase all of the outstanding Securities at a purchase price equal to 101% of the principal amount thereof, plus accrued and unpaid interest, if
any, thereon to the date of repurchase. 
 9. Notice of Redemption. Notice of redemption shall be mailed at least 30
days but not more than 60 days before the redemption date to each Holder whose Securities are to be redeemed at its registered address, except that redemption notices may be mailed more than 60 days prior to a redemption date if the notice is issued
in connection with Article 10 or Article 11 of the Base Indenture. Securities in denominations larger than $2,000 may be redeemed in part but only in whole multiples of $1,000, unless all of the Securities held by a Holder are to be redeemed. Unless
the Company defaults in payment of the redemption price, on and after the redemption date interest ceases to accrue on Securities or portions thereof called for redemption. 
 10. Denominations, Transfer, Exchange. The Securities are in registered form, without coupons, in denominations of $2,000 principal amount and integral multiples of $1,000 principal amount.
The transfer of Securities may be registered and Securities may be exchanged as provided in the Indenture. The Registrar may require a Holder, among other things, to furnish appropriate endorsements and transfer documents. No service charge shall be
made for any such registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any tax or similar governmental charge that may be imposed in connection with certain transfers or exchanges. The Company shall
not be required to register the transfer of or exchange any Security selected for redemption, except for the unredeemed portion of any Security being redeemed in part. Also, the Company need not exchange or register the transfer of any Securities
for a period of 15 days next preceding the first mailing of notice of redemption of Securities to be redeemed. 

11. Persons Deemed Owners. The registered Holder of a Security may be treated as the owner of such Security for all purposes.

 12. Merger or Consolidation. The Company shall not consolidate with or merge with or into, or sell, transfer,
lease, convey or otherwise dispose of all or substantially all of its property or assets to, another Person (including pursuant to a statutory arrangement), whether in a single transaction or series of related transactions, unless it complies with
Article 8 of the Base Indenture. 
 13. Amendments, Supplements and Waivers. The Indenture or the Securities
may be amended or supplemented as provided in the Indenture. 

 14. Defaults and Remedies. The Events of Default relating to the Securities are
defined in Section 5.01 of the Base Indenture. If any Event of Default occurs and is continuing, the Trustee or the Holders of at least 25% in principal amount of the then outstanding Securities may declare the principal, premium, if any,
interest and any other monetary obligations on all the then outstanding Securities to be due and payable immediately. Notwithstanding the foregoing, in the case of an Event of Default arising from certain events of bankruptcy or insolvency, all
outstanding Securities will become due and payable immediately without further action or notice. 
 Holders may not enforce the
Indenture or the Securities except as provided in the Indenture. Subject to certain limitations, Holders of a majority in aggregate principal amount of the then outstanding Securities may direct the Trustee in its exercise of any trust or power. The
Trustee may withhold from Holders of the Securities notice of any continuing Default (except a Default relating to the payment of principal, premium, if any, or interest) if it determines that withholding notice is in their interest. The Holders of
a majority in aggregate principal amount of the Securities then outstanding by notice to the Trustee may on behalf of the Holders of all of the Securities waive any existing Default or and its consequences under the Indenture except a continuing
Default in payment of the principal of, premium, if any, or interest, if any, on, any of the Securities held by a non-consenting Holder. The Company is required to deliver to the Trustee annually a statement regarding compliance with the Indenture,
and the Company is required upon becoming aware of any Default or Event of Default, to deliver to the Trustee a statement specifying such Default or Event of Default. 
 15. Trustee Dealings with the Company. The Trustee, in its individual or any other capacity, may make loans to, accept deposits from, and perform services for the Company or its affiliates,
and may otherwise deal with the Company or its affiliates, as if it were not the Trustee. 
 16. No Recourse Against
Others. A director, officer, employee, incorporator or stockholder, of the Company, as such, shall not have any liability for any obligations of the Company under the Securities or the Indenture or for any claim based on, in respect of,
or by reason of, such obligations or their creation. Each Holder by accepting a Security waives and releases all such liability. The waiver and release are part of the consideration for the issuance of the Securities. 

17. Authentication. This Security shall not be valid until authenticated by the manual signature of the Trustee or an
authenticating agent in accordance with the Indenture. 
 18. Abbreviations. Customary abbreviations may be used in
the name of a Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (= tenants by the entireties), JT TEN (= joint tenants with right of survivorship and not as tenants in common), CUST (= Custodian), and U/G/M/A (= Uniform Gifts to
Minors Act). 
 19. CUSIP and ISIN Numbers. Pursuant to a recommendation promulgated by the Committee on Uniform Security
Identification Procedures, the Company has caused CUSIP and ISIN numbers to be printed on the Securities and the Trustee may use CUSIP and ISIN numbers in notices of redemption as a convenience to Holders. No representation is made as to the
accuracy of such numbers either as printed on the Securities or as contained in any notice of redemption and reliance may be placed only on the other identification numbers placed thereon 

THE COMPANY WILL FURNISH TO ANY HOLDER UPON WRITTEN REQUEST AND WITHOUT CHARGE A COPY OF THE BASE INDENTURE OR THE SUPPLEMENTAL
INDENTURE. REQUESTS MAY BE MADE TO: 
 American Tower Corporation 

116 Huntington Avenue 
 Boston, MA 02116 
 Telecopier No.: (617) 375-7575 

Attention: Investor Relations. 

 [FORM OF ASSIGNMENT] 
 I or we assign to 
  

	
	 PLEASE INSERT SOCIAL SECURITY OR

OTHER IDENTIFYING NUMBER

	
	  

	
	(please print or type name and address)
	
	  

	
	  

 the within Security and all rights thereunder, and hereby irrevocably constitute and appoint 

	
	
	  

 Attorney to transfer the Security on the books of the Company with full power of substitution in the premises. 
 Dated:                      

 

			
	NOTICE: The signature on this assignment must correspond with the name as it appears upon the face of the within Security in every particular without alteration or
enlargement or any change whatsoever and be guaranteed by a guarantor institution participating in the Securities Transfer Agents Medallion Program or in such other guarantee program acceptable to the Trustee.

Signature Guarantee:
                                     

 Option of Holder to Elect Purchase 

If you want to elect to have only part of the Security purchased by the Company pursuant to Section 4.01(b) of the Supplemental Indenture, state the
amount you elect to have purchased: 
 $
                     

Date:                    _ 

Your
Signature:                                       
                       
 (Sign exactly as your name appears on  
 the face of this Security)

 Tax Identification
No.:                                        
 
 Signature
Guarantee*:                                     

 

	*	Participant in a recognized Signature Guarantee Medallion Program (or other signature guarantor acceptable to the Trustee). 

 SCHEDULE A 

SCHEDULE OF EXCHANGES OF INTERESTS IN THE GLOBAL SECURITY* 

The initial principal amount of this Global Security is $1,000,000,000. The following exchanges of a part of this Global Security for an
interest in another Global Security or for Securities in certificated form, have been made: 
  

									
	 Date of Exchange
	 	 Amount of decrease in

Principal Amount of

this Global Security
	 	 Amount of increase in

Principal Amount of this

Global Security
	  	 Principal Amount of

this Global Security
 following such decrease

(or increase)
	  	 Signature of
 authorized officer of
 Trustee or

Custodian

		 		 		  		  	
		 		 		  		  	
		 		 		  		  	
		 		 		  		  	
		 		 		  		  	
		 		 		  		  	
		 		 		  		  	
		 		 		  		  	
		 		 		  		  	

  

	*	This schedule should be included only if the Security is issued in global form. 

 EXHIBIT B 

FORM OF LEGEND FOR GLOBAL SECURITY 
 Any Global Security authenticated and delivered hereunder shall bear a legend in substantially the following form: 
 THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITARY OR A NOMINEE OF THE DEPOSITARY, WHICH MAY BE TREATED BY THE
COMPANY, THE TRUSTEE AND ANY AGENT THEREOF AS OWNER AND HOLDER OF THIS SECURITY FOR ALL PURPOSES. 
 UNLESS THIS
CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR
IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (AND ANY PAYMENT HEREON IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST
COMPANY), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 

TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS IN WHOLE, BUT NOT IN PART, TO NOMINEES OF THE DEPOSITORY
TRUST COMPANY OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR’S NOMINEE.Third Amendment to the ABL Credit Agreement

 Exhibit 10.1 
 EXECUTION COPY 
 THIRD AMENDMENT 

TO ABL CREDIT AGREEMENT 
 This THIRD AMENDMENT TO ABL CREDIT AGREEMENT (this “Amendment”) is dated as of November 30, 2010 and is entered into by and among Affinia Group Intermediate Holdings Inc., a Delaware
corporation (“Holdings”), Affinia Group Inc., a Delaware corporation (the “Company”), each other Wholly-Owned Domestic Subsidiary of Holdings set forth on the signature pages hereto as a U.S. Borrower (together with
the Company, collectively, the “U.S. Borrowers”), Affinia Canada ULC, an unlimited liability corporation organized under the laws of the Province of Alberta (as successor by amalgamation of Affinia Canada Holdings Corp. and
Affinia Canada ULC consummated on January 1, 2010, the “Canadian Borrower” and, together with the U.S. Borrowers, the “Borrowers”), each Wholly-Owned Domestic Subsidiary and each Wholly-Owned Canadian
Subsidiary that from time to time guarantees any of the Obligations (as hereinafter defined) (together with Holdings, being the “Guarantors” and each a “Guarantor” and the Guarantors, together with the Borrowers
being, collectively, the “Credit Parties” and each a “Credit Party”), the financial institutions party hereto (the “Lenders”), and Bank of America, N.A., as a Lender and as administrative agent (in
such capacity, the “Administrative Agent”). 
 RECITALS: 

A. The Credit Parties, the Lenders and the Administrative Agent have entered into that certain ABL Credit Agreement dated as of
August 13, 2009 (as amended and as the same may hereafter be amended, restated, supplemented or otherwise modified from time to time, the “Credit Agreement”), pursuant to which, among other things, the Administrative Agent and
the Lenders have made and may hereafter make certain loans, advances and other financial accommodations to the Borrowers. Unless otherwise defined herein, capitalized terms used in this Amendment shall have the meanings ascribed to such terms in the
Credit Agreement. 
 B. The Administrative Agent, the Lenders and the Credit Parties have agreed to amend the Credit Agreement
to, among other things, (a) permit the Company to incur up to an additional $200,000,000 of unsecured indebtedness, (b) amend the definition of “Change of Control”, (b) set forth preconditions to permit the Parent Merger (as
defined in Section 1.2 below), (c) modify the conditions to making certain dividends, distributions, restricted payments and investments, (d) extend the Final Maturity Date, (e) allow for prepayments of certain outstanding
indebtedness with the proceeds of the IPO (if the Parent undertakes the IPO), (f) modify the Seasonal Advance Percentage as it relates to the U.S. and Canadian Borrowing Bases and (g) modify certain other provisions thereof. 

 NOW, THEREFORE, in consideration of the premises and for other good and valuable
consideration, the receipt and adequacy of which are hereby acknowledged, and subject to the terms and conditions set forth herein, the parties hereto hereby agree as follows: 
 AGREEMENT: 
 SECTION 1. AMENDMENT TO THE CREDIT AGREEMENT. Effective as of the
Amendment Effective Date, the Credit Agreement is hereby amended as set forth below: 
 1.1 The following defined
terms set forth in Section 1.01 of the Credit Agreement are hereby amended as follows: 
 (a) Clause (c) of
the definition of “Aggregate Consideration” is hereby amended and restated in its entirety to read as follows: 

“(c) the Fair Market Value of all other consideration paid (or to be paid) in connection with such Permitted Acquisition (other than
the Fair Market Value of any Equity Interests of Parent or, until the Merger Effective Date, any common Equity Interests of Holdings)”. 
 (b) The pricing grid set forth in the definition of “Applicable Margin” is hereby amended and restated in its entirety to read as follows: 

 

											
	 Level
	  	Average Aggregate
Availability	  	Base Rate
Loans 
and
Canadian
Prime 
Rate
Loans	 	 	LIBOR Loans
and
Canadian
BA Rate
Loans	 
	 I
	  	£$105,000,000	  	 	1.75	% 	 	 	2.75	% 
	 II
	  	> $105,000,000 but <
$210,000,000	  	 	1.50	% 	 	 	2.50	% 
	 III
	  	> $210,000,000	  	 	1.25	% 	 	 	2.25	% 

 (c) The definition of
“Applicable Permitted Investment Amount” is hereby amended and restated in its entirety to read as follows: 

“Applicable Permitted Investment Amount” shall mean, (i) as used in reference to an Investment for which the Tier I
Payment Conditions would be satisfied both immediately before and after the making thereof, the Permitted Investment Amount and (ii) in all other cases, $0. 
 (d) The definition of “Applicable Seasonal Percentage” is hereby replaced with the following definition of “Applicable Percentage”, and all references to “Applicable
Seasonal Percentage” in the Credit Agreement shall be replaced by references to “Applicable Percentage”: 

“Applicable Percentage” shall mean 75%. 
 (e) The definition of “Applicable Unused Line Fee Margin” is hereby amended and restated in its entirety to read as follows: 

“Applicable Unused Line Fee Margin” shall mean with respect to any Fiscal Quarter, (a) if the average aggregate
daily outstanding principal amount (on a U.S. Dollar Equivalent basis) of all Revolving Loans (excluding, for clarity sake, any Swingline Loans) and the average aggregate daily Stated Amount of all outstanding Letters of Credit during such
Fiscal Quarter is equal to or greater than 50% of the amount of the Total Revolving Loan Commitment, 0.375% or (b) otherwise, .50%. 

  
 2 

 (f) The definition of “Canadian BA Rate” is hereby amended by deleting the
following proviso at the end thereof: 
 “; provided, however, that in no event shall the Canadian BA Rate be less
than 1.50%.” 
 (g) The definition of “Change of Control” is hereby amended and restated in its entirety
to read as follows: 
 “Change of Control” shall mean (i) any “person” or “group” (as
such terms are used in Sections 13(d) and 14(d) of the Exchange Act), other than the Permitted Holders, is or shall become the “beneficial owner” (as defined in Rules 13(d)-3 and 13(d)-5 under the Exchange Act), directly or indirectly, of
50% or more (on a fully diluted basis) of the Voting Equity Interests of Parent, (ii) the Board of Directors of Parent shall cease to consist of a majority of Continuing Directors, (iii) prior to the Merger Effective Date, Parent shall
cease to directly own and control 100% of the Equity Interests of Holdings, (iv) Holdings shall cease to directly own and control 100% of the Equity Interests of the Company, or (v) notwithstanding the foregoing, a “change of
control” or similar event shall occur as provided in any Senior Secured Notes Document, any Additional Senior Secured Notes Documents, any Existing Senior Subordinated Notes Document, any Additional Senior Subordinated Notes Document, the
Parent PIK Note, any Preferred Equity of Parent (or the documentation governing the same) or any Supplemental Material Indebtedness Document. 
 (h) The definition of “Consolidated EBITDA” is hereby amended and restated in its entirety to read as follows: 
 “Consolidated EBITDA” shall mean, for any period, Consolidated Net Income for such period plus, without duplication and to the extent deducted in determining such Consolidated Net
Income for such period, the sum of (i) consolidated interest expense of Holdings and its Subsidiaries for such period, (ii) consolidated income tax expense of Holdings and its Subsidiaries for such period (including any income tax expense
of Parent for such period to the extent Holdings or any of its Subsidiaries has made payment in accordance with the terms hereof to or for the account of Parent in respect thereof), (iii) depreciation and amortization expense of Holdings and
its Subsidiaries for such period, (iv) to the extent not netted from the IPO proceeds, out of pocket fees, commissions, costs and expenses paid during such period in connection with the IPO (up to a maximum amount of $5,000,000, in aggregate,
for all periods) and (v) any non-cash charges, losses or expenses of Holdings and its Subsidiaries for such period (but excluding any non-cash charge, loss or expense in respect of an item that was included in Consolidated Net Income in a prior
period and any non-cash charge, loss or expense that relates to the write-down or write-off of inventory, other than any write-down or write-off of inventory as a result of purchase accounting adjustments in respect of any Permitted Acquisition).

  
 3 

 (i) The definition of “Dominion Threshold” is hereby amended and restated
in its entirety to read as follows: 
 “Dominion Threshold” means the greater of (a) 15% of the Total
Revolving Loan Commitment and (b) $47,500,000. 
 (j) The definition of “Fee Letter” is hereby amended
and restated in its entirety to read as follows, and all references to the “Fee Letter” in the Credit Agreement shall be, unless otherwise specifically indicated, deemed to be references to the “Fee Letters”: 

“Fee Letters” shall mean (i) the amended and restated fee letter agreement dated as of the Effective Date between
Administrative Agent and the Borrowers, (ii) that certain fee letter agreement dated as of July 29, 2009 among the Company and the Lead Arranger and (iii) that certain fee letter agreement dated as of November 3, 2010 among the
Company, Holdings, the Agent, and the Lead Arranger. 
 (k) The definition of “Final Maturity Date” is hereby
amended to delete the date “August 13, 2013” which appears therein and to substitute the date “November 30, 2015” therefor. 
 (l) The definition of “Holdings” is hereby amended and restated in its entirety to read as follows: 
 “Holdings” shall (x) at all times prior to the Merger Effective Date, have the meaning provided in the first paragraph of this Agreement and (y) at all times from and after the
Merger Effective Date, mean Affinia Group Holdings Inc., as successor by merger to Affinia Group Intermediate Holdings Inc. 

(m) The definition of “IPO” is hereby amended and restated in its entirety to read as follows: 

“IPO” means an underwritten public offering of the Parent’s common stock pursuant to an effective registration
statement filed with the Securities and Exchange Commission under the Securities Act of 1933; provided that (i) there are sales pursuant to such registration statement of shares of such common stock for a net aggregate offering
price of not less than $200,000,000 and (ii) such common stock is listed on a national securities exchange. 
 (n) The
definition of “LIBOR” is hereby amended by deleting the following proviso at the end thereof: 
 “;
provided, however, that in no event shall LIBOR be less than 1.50%”. 

  
 4 

 (o) The definition of “Monthly Reporting Period” is hereby amended and
restated in its entirety to read as follows: 
 “Monthly Reporting Period” shall mean the period commencing with
the calendar month immediately preceding any calendar month during which Excess Availability falls below the Dominion Threshold (such month during which such Excess Availability was below such amount being the “Subject Month”) and
continuing until (and including) the second complete consecutive calendar month occurring after the Subject Month for which Excess Availability was at all times above the foregoing amounts and for which months (including such second consecutive
month) the Credit Parties shall have delivered all monthly financial statements and monthly management reports required to be delivered to the Administrative Agent pursuant to Sections 9.01 and 9.02. 

(p) The definition of “Parent” is hereby amended and restated in its entirety to read as follows: 

“Parent” shall mean Affinia Group Holdings Inc., including as the surviving entity of the Parent Merger. 

(q) The definition of “Permitted Investment Amount” is hereby amended and restated in its entirety to read as follows:

 “Permitted Investment Amount” shall mean, as it relates to any Investment (i) constituting Intercompany
Loans from Credit Parties to non-Credit Parties or from U.S. Credit Parties to Canadian Credit Parties under and pursuant to Section 10.05(h), (ii) constituting capital contributions by Credit Parties to non-Credit Parties or U.S.
Credit Parties to Canadian Credit Parties under and pursuant to Section 10.05(i)(v), (iii) constituting Permitted Acquisitions under and pursuant to Section 10.05(l) and the definition of Permitted Acquisition or
(iv) constituting any other Investment under and pursuant to Section 10.05(q) (each, a “Subject Investment”), in each case, so long as the Tier I Payment Conditions are and will be satisfied both before and after
giving effect to such Subject Investment, any dollar amount less than the amount at which the Tier I Payment Conditions would cease to be so satisfied after giving effect to such Subject Investment. 

(r) The definition of “Tier I Payment Conditions” is hereby amended and restated in its entirety to read as follows:

 “Tier I Payment Conditions” shall mean that each of the following conditions are satisfied both at the time
of each action or proposed action and after giving effect thereto: (i) no Default or Event of Default shall have occurred and be continuing or would result therefrom, (ii) Excess Availability (on the date of such action or proposed action)
and Average Aggregate Availability (for the 90-day period ending on the date of such action or proposed action), in each case, calculated on a Pro Forma Basis as if such action or proposed action had occurred on the first day of such measurement
period, shall exceed the greater of (x) $50,000,000 and (y) 20% of the Total Borrowing Base as then in effect, (iii) if Excess Availability (on the date of such action or proposed action) and Average Aggregate Availability (for the
90-day period ending on the date of such action or proposed action), in each case, calculated on a Pro Forma Basis as if such action or proposed action had occurred on the first day of such measurement period, does

  
 5 

 
not exceed the greater of (x) $75,000,000 and (y) 30% of the Total Borrowing Base as then in effect, then Holdings shall be in compliance with a Consolidated Fixed Charge Coverage Ratio
of not less than 1.10:1.00 for the Test Period ending as of the last day of the immediately preceding calendar month, calculated, other than with respect to prepayments of Indebtedness pursuant to Section 10.03(b), on a Pro Forma Basis
as if such action or proposed action had occurred on the first day of such Test Period, (iv) in the case of Permitted Acquisitions, Dividends and other distributions, Investments or other payments, such Permitted Acquisitions, Dividends and
other distributions, Investments or other payments would be permitted under the Senior Secured Notes Documents, the Existing Senior Subordinated Notes Documents, any Additional Senior Subordinated Notes Documents and any Supplemental Material
Indebtedness Documents and (v) not less than ten (10) days prior to such action or proposed action, Holdings shall have delivered to the Administrative Agent a certificate of an Authorized Officer of Holdings certifying as to compliance
with preceding clauses (i) through (iv) and demonstrating (in reasonable detail) the calculations required by preceding clauses (ii) and (iii), which certificate shall be recertified to the Administrative Agent by an Authorized
Officer of Holdings on and as of the date of the proposed transaction. 
 (s) The definition of “Tier II Payment
Conditions” is hereby deleted in its entirety, all references to “the Tier II Payment Conditions” shall also be deleted in their entirety wherever the same may appear and all resulting references to “either the Tier I Payment
Conditions or” shall be replaced with references to “the Tier I Payment Conditions”. 
 (t) The definition of
“Trigger Period” is hereby amended and restated in its entirety to read as follows” 
 “Trigger
Period” means the period (a) commencing on the day that an Event of Default occurs or Excess Availability is less than the greater of (i) 12.5% of the Total Revolving Loan Commitments at such time and (ii) $39,500,000 (the
“Threshold Amount”) at any time; and (b) continuing thereafter until no Event of Default has existed and Excess Availability has been greater than the Threshold Amount at all times, in each case, for 60 consecutive days.

 (u) The definition of “U.S. Revolving Commitment Termination Date” is hereby amended and restated to read
as follows: 
 “U.S. Revolving Commitment Termination Date” shall mean the earliest to occur of (a) the
Final Maturity Date, (b) the termination or reduction to zero of the U.S. Commitment for any reason whatsoever, including pursuant to Section 11 and (c) the Early Commitment Termination Date.” 

  
 6 

 1.2 Section 1.01 of the Credit Agreement is hereby amended to
add definitions of “Early Commitment Termination Date,” “Excluded Foreign Subsidiary Indebtedness”, “IPO Prepayments”, “Merger Conditions”, “Merger Effective Date”,
“Parent Merger”, “Parent Stockholders Agreement”, “Qualified Secured Cash Management Obligations”, “Qualified Secured Hedging Obligations”, “Supplemental Material
Indebtedness Documents”, “Third Amendment” and “Third Amendment Effective Date” as follows: 
 “Early Commitment Termination Date” shall mean, if with respect to any Existing Senior Subordinated Notes and/or any Additional Senior Subordinated Notes maturing prior to, or less than
six (6) months after, the Final Maturity Date, the Credit Parties shall have failed to have fully effected (to the reasonable satisfaction of the Administrative Agent) any of the actions set forth in clauses (a) or (b) below, in each
case, at least ninety-one (91) days prior to the earlier of (i) the maturity date of such Existing Senior Subordinated Notes and/or any Additional Senior Subordinated Notes and (ii) the Final Maturity Date, then such date so occurring
ninety-one days prior to such earlier date shall be the “Early Commitment Termination Date”: 

(a) extended, renewed or refinanced all of such Existing Senior Subordinated Notes and/or Additional Senior Subordinated
Notes (including, in each case, all interest, principal, premium, fees and other amounts owing thereunder), as applicable, with Indebtedness meeting the requirements set forth in Section 10.04(b)(2) hereof, or 

(b) to the extent that no Default or Event of Default then exists or would result therefrom, either (1) the Borrowers
and the Administrative Agent shall have implemented an ongoing reserve against the U.S. Borrowing Base in the full amount of, and for prepayment of the full amount of, or (2) the Company shall have fully redeemed, fully cash defeased or repaid
in full all of, such Existing Senior Subordinated Notes and Additional Senior Subordinated Notes (including, in each case, all interest, principal, premium, fees and other amounts owing thereunder), in any case under this clause (b), in compliance
with and to the extent permitted under (x) Section 10.03(b) (the applicability of such Section and such compliance with and permissibility under such Section being determined as if such implementation of such reserve or such
defeasance or repayment were a prepayment (as opposed to a scheduled payment) of such Indebtedness on such date) and (y) the Existing Senior Subordinated Notes Documents and/or Additional Senior Subordinated Notes Documents, as applicable.

 “Excluded Foreign Subsidiary Indebtedness” shall mean the Indebtedness of any Subsidiary other than a
Canadian Subsidiary or Domestic Subsidiary (a) in respect of which none of the Credit Parties are bound by the terms of or has any liability (either primarily, as a guarantor or surety or otherwise) or has granted any Lien or pledged any assets
for the payment or security thereof and (b) is otherwise permitted pursuant to Section 10.04 hereof. 

“IPO Prepayments” shall mean (i) the prepayment of all or any portion of the outstanding principal of the Existing
Senior Subordinated Notes plus the premium and accrued and unpaid interest associated therewith, (ii) the prepayment of all or any portion of the outstanding principal of the Senior Secured Notes plus the premium and accrued and unpaid interest
associated therewith and (iii) the prepayment of all or any portion of the outstanding principal of the Parent PIK Note and the accrued and unpaid interest associated therewith, in each case, to the extent such prepayments are funded solely
from the net proceeds of, and paid within sixty (60) days after the completion of, the IPO. 

  
 7 

 “Merger Conditions” shall mean that each of the following conditions which
are required to be satisfied in connection with the consummation of the Parent Merger: 
 (i) both immediately
before and immediately after giving effect to the Parent Merger, no Default or Event of Default shall have occurred and be continuing or would result therefrom; 

(ii) both immediately before and immediately after giving effect to the Parent Merger, all representations and warranties
of the Credit Parties in the Credit Documents (after giving effect to the Third Amendment) shall be true and correct in all material respects with the same effect as though such representations and warranties had been made on and as of the date of
the Parent Merger, unless stated to relate to a specific earlier date, in which case such representations and warranties shall be true and correct in all material respects as of such earlier date; 

(iii) the IPO shall have been consummated on or prior to the Merger Effective Date and all of the Parent’s Equity
Interest which are subject to any redemption, repurchase, put or other similar right or option in favor of the holders thereof which are exercisable or effective at the option of the holders prior to the date occurring six months after the Final
Maturity Date shall have been previously redeemed or repurchased or such shares have been converted to common, non-redeemable Equity Interests; 
 (iv) such Merger shall be consummated in accordance with, and shall not be in violation of, any of the terms of the Senior Secured Notes Documents, the Senior Subordinated Notes Documents, any
Supplemental Material Indebtedness Documents, the Parent PIK Note and other material agreements to which the parties thereto are subject; 
 (v) the Parent PIK Note shall not have been amended, supplemented or modified since the date of issuance in any manner adverse to the Parent or the Lenders; 

(vi) the Administrative Agent shall have received a written certification from the Parent on the Merger Effective Date
certifying as to the satisfaction of all conditions set forth in clause (i) – (v) above and certifying a genuine copy of the Parent PIK Note; 
 (vii) the Administrative Agent shall have received on or prior to the Merger Effective Date a Joinder Agreement, together with the updated Schedules to the Credit Agreement and Perfection Certificate as
required by the Joinder Agreement, executed by Parent as the surviving entity of the Parent Merger, pursuant to which Parent shall become a Guarantor for all purposes under the Credit Agreement, a Grantor for all purposes under the U.S. Security
Agreement and a Grantor for all purposes under the Intercreditor Agreement, and pursuant to which Parent shall grant a security interest and lien in and on all of its assets in favor of the Collateral Agent, with the priority required by the
Security Documents and the Intercreditor Agreement; 

  
 8 

 (viii) the Administrative Agent shall have received a certificate from
Parent dated as of the Merger Effective Date, signed by the chairman of the board, the chief executive officer, the president, the secretary or any vice president of Parent, and attested to by any vice president (other than a vice president that
signed such certificate), secretary, or any assistant secretary of Parent, certifying copies of (A) the certificate or articles of incorporation and by-laws of the Parent, and the Parent Stockholders Agreement, in each case, as in effect on the
Third Amendment Effective Date, (B) unless there have been no changes thereto since the Third Amendment Effective Date (in which case the certificate shall so state), the certificate or articles of incorporation and by-laws of the Parent and
the Parent Stockholders Agreement as in effect on the Merger Effective Date (which certificate of incorporation, bylaws, and Parent Stockholders Agreement, in each case, shall not have been amended, supplemented or modified in any material respect
adverse to the Lenders since the Third Amendment Effective Date), (C) the resolutions of Parent authorizing its execution and delivery of the Joinder Agreement, its performance of the Credit Documents to which it becomes a party by virtue
thereof and the Parent Merger, and (D) the signatures of the applicable officers of Parent, each of the foregoing shall be in form and substance reasonably acceptable to the Administrative Agent and the Required Lenders; 

(ix) the Administrative Agent shall have received reasonably prior to the Merger Effective Date a copy of the applicable
merger agreement, if any, in respect of the Parent Merger, which merger agreement shall be in form and substance reasonably satisfactory to the Administrative Agent; 

(x) the Administrative Agent shall have received a certificate of merger from the Secretary of State of the State of
Delaware evidencing completion of the Parent Merger and a good standing certificate for the Parent after the consummation of the Parent Merger; 
 (xi) the Administrative Agent shall have received an opinion (or, as it relates to the Delaware UCC, advice) of counsel to the Parent addressed to the Administrative Agent, the Collateral Agent and each
of the Lenders and dated as of the Merger Effective Date in form and substance reasonably satisfactory to the Administrative Agent and the Required Lenders; 
 (xii) on or prior to the Merger Effective Date, the Administrative Agent shall have received a revised Intercompany Note joining Parent as a party thereto; and 

(xiii) on or prior to the Merger Effective Date, the Administrative Agent shall have received any other documents or
instruments reasonably requested by the Collateral Agent, including those necessary or desirable for the satisfaction of the Security Condition with respect to Parent and the creation, perfection, maintenance, preservation and protection of the
Liens on Parent, including, without limitation: 
 (A) proper financing statements (Form UCC-1 or the equivalent) fully executed
or authorized for filing under the UCC or other appropriate filing offices of each jurisdiction as may be necessary or, in the reasonable opinion of the Collateral Agent, desirable, to perfect such security interest, 

  
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 (B) at least 5 days prior to the Merger Effective Date, certified copies of requests for
information or copies (Form UCC-11), or equivalent reports as of a recent date, listing all effective financing statements that name Parent as debtor and that are filed in the Parent’s jurisdiction of incorporation, together with copies of such
other financing statements that name Parent as debtor (none of which shall cover any of the Collateral except (x) to the extent evidencing Permitted Liens or (y) those in respect of which the Collateral Agent shall have received
termination statements (Form UCC-3) or such other termination statements as shall be required by local law fully executed for filing); 
 (C) all Securities and Instruments (in each case, as defined in the U.S. Security Agreement) owned by Parent and evidenced by certificates or notes (x) endorsed in blank in the case of promissory
notes constituting such Instruments, and (y) together with executed and undated endorsements for transfer in the case of certificated Securities, in each case, delivered to the applicable collateral agent pursuant to the Intercreditor
Agreement; 
 (D) fully-executed Cash Management Control Agreement(s) for the Deposit Accounts (other than Excluded Accounts) of
Parent; and 
 (E) at least 5 days prior to the Merger Effective Date, Intellectual Property searches showing that Parent has no
rights in any Intellectual Property. 
 “Merger Effective Date” shall mean the date upon which the Parent Merger
becomes effective; it being agreed that nothing herein shall be deemed to authorize or approve the Parent Merger at any time that the Merger Conditions shall not have been satisfied. 

“Parent Merger” shall mean that certain merger of Holdings with and into Parent, with Parent being the surviving entity
and, upon the effectiveness thereof, continuing to be a corporation organized under the laws of the State of Delaware. 

“Parent Stockholders Agreement” shall mean that certain Stockholders Agreement of the Parent dated as of
November 30, 2004 among the stockholders of the Parent party thereto, as the same has been amended or otherwise modified in accordance with its terms and, after the Merger Effective Date, the terms of this Agreement. 

“Qualified Secured Cash Management Obligations” shall mean Obligations under any Qualified Secured Cash Management
Agreement. 
 “Qualified Secured Hedging Obligations” shall mean Obligations under any Qualified Secured Hedging
Agreement. 
 “Supplemental Material Indebtedness Documents” shall mean the documents evidencing unsecured
Indebtedness incurred by the Company or any Subsidiary in any single series or related series in an aggregate original principal amount in excess of $100,000,000 in accordance with the proviso to Section 10.04(q). 

  
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 “Third Amendment” shall mean the Third Amendment to ABL Credit Agreement
dated as of November 30, 2010 among Holdings, the Company, the Credit Parties, the Lenders party thereto and the Administrative Agent. 
 “Third Amendment Effective Date” shall mean the date the Third Amendment became effective. 
 1.3 Section 4.01(b) of the Credit Agreement is hereby amended and restated in its entirety as to read as follows: 
 “(b) Borrowers shall pay (i) to Administrative Agent, for the benefit of the U.S. Lenders in accordance with their respective RL Percentages (as determined pursuant to clause (a) of the
definition thereof), a fee equal to the Applicable Margin in effect for LIBOR Loans times the average daily Stated Amount of Letters of Credit outstanding during each Fiscal Quarter, which fee shall be payable quarterly in arrears on the first day
of each Fiscal Quarter and on the Facility Termination Date; (ii) to Administrative Agent, for its own account, a fronting fee equal to 0.125% per annum on the Stated Amount of each Letter of Credit outstanding during each Fiscal Quarter,
which fee shall be payable quarterly in arrears on the first day of each Fiscal Quarter and on the Facility Termination Date; and (iii) to Issuing Lender, for its own account, all customary charges associated with the issuance, amending,
negotiating, payment, processing, transfer and administration of Letters of Credit, which charges shall be paid as and when incurred (the fees payable under clauses (i), (ii) and (iii) collectively, the “Letter of Credit
Fee”); provided that the fees payable under clauses (i) and (ii) of this Section 4.01(b) for the first quarter ending after the Third Amendment Effective Date shall be reduced by the amount of any such fees actually
paid by the Borrowers pursuant to this Agreement with respect to such quarter prior to the Third Amendment Effective Date. During an Event of Default, the fee payable under clause (i) shall be increased by 2% per annum.” 

1.4 The second sentence of Section 8.13 of the Credit Agreement is hereby amended and restated in its entirety
to read as follows: 
 “All outstanding Equity Interests of Holdings (i) are, at all times prior to the Merger
Effective Date, owned by Parent, (ii) have been duly and validly issued, (iii) are fully paid and non-assessable, and (iv) have been issued free of preemptive rights.” 

1.5 Section 8.14 of the Credit Agreement is hereby amended to add the following at the end of such Section:

 “As of the Merger Effective Date, Parent has no Subsidiaries other than those Subsidiaries listed on Schedule 8.14
submitted in connection with the Joinder Agreement to be delivered by Parent on such date. As of such date, Schedule 8.14 sets forth, each Subsidiary’s name, jurisdiction of organization, the percentage ownership (direct and indirect) of
Parent in each class of capital stock or other Equity Interests thereof, lists all agreements binding on the holders of the Equity Interests thereof and also identifies the direct owner thereof and whether or not such Subsidiaries are Credit
Parties.” 

  
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 1.6 Section 9.01(f) of the Credit Agreement is hereby amended
and restated in its entirety to read as follows: 
 “(f) Officer’s Certificates. At the time of the delivery of
the financial statements or reports provided for in Sections 9.01(a) (other than the Internal Management Reports delivered with respect to and covering the last three months of each Fiscal Year), (b) and (c), and as and when required
pursuant to the last sentence of Section 10.07, a compliance certificate from an Authorized Officer of Holdings in the form of Exhibit I certifying on behalf of Holdings, to the extent set forth in such certificate, that no
Default or Event of Default has occurred and is continuing or, if any Default or Event of Default has occurred and is continuing, specifying the nature and extent thereof, which certificate shall set forth in reasonable detail the calculations
required to determine the Consolidated Fixed Charge Coverage Ratio, to the extent set forth in such certificate and, in the case of the financial statements or reports provided for in Section 9.01(a) (other than the Internal Management
Reports delivered with respect to and covering the last three months of each Fiscal Year), Average Aggregate Availability for such Fiscal Quarter then ended; provided that, if Holdings becomes an accelerated filer under applicable SEC rules
and regulations, the requirement to deliver Internal Management Reports for the months of October, November and December shall cease.” 
 1.7 Section 9.01(l) of the Credit Agreement is hereby amended to (x) delete the reference to “Sections 9.01(a) and (b)” that appears therein and
(y) substitute therefor the reference to “Section 9.01(b)”. 
 1.8 The second sentence of
Section 9.02(a) of the Credit Agreement is hereby amended and restated in its entirety to read as follows: 

“Holdings will, and will cause each of its Subsidiaries to, permit employees and designated representatives of the Administrative
Agent and any Lender, in each case, at the Credit Parties’ expense at reasonable times and (except during the continuance of an Event of Default) upon reasonable notice, to conduct appraisals of Inventory and field exams, in each case, up to
two (2) times in any twelve month period or up to three (3) times in any such twelve month period at any time after Excess Availability has fallen below the Dominion Threshold for a period of five (5) consecutive days and, in any
event, more frequently as the Administrative Agent reasonably deems appropriate during the existence of an Event of Default (it being acknowledged that a single field exam, appraisal or inspection may entail visits to multiple locations of books,
records and assets of the Credit Parties).” 
 1.9 Section 9.02(b) of the Credit Agreement is
hereby amended and restated in its entirety to read as follows: 
 “(b) Expenses. In addition to the obligations set
forth in Section 13.01(a), Holdings will, and will cause its Subsidiaries to, reimburse Administrative Agent for all reasonable and documented costs and expenses of Administrative Agent in connection with (i) examinations of any
such Person’s books and records or any other financial or Collateral matters as the Administrative Agent reasonably 

  
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deems appropriate, (ii) appraisals of Inventory and (iii) field exams, in each case, as described in Section 9.02(a) above. Without limiting the foregoing and/or the
Administrative Agent’s right to use third parties for such purposes, Holdings shall, and shall cause its Subsidiaries to pay Administrative Agent’s then standard per diem charges for each day that an employee of Administrative Agent or its
Affiliates is engaged in any examination activities (including field exams), and shall pay the standard charges of Administrative Agent’s internal appraisal group.” 

1.10 Sections 9.10(c) and 10.03(a)(i) of the Credit Agreement are hereby amended to delete the terms
“voting Equity Interests” that appear therein and to substitute the term “Voting Equity Interests” therefor. 
 1.11 Section 10.02 of the Credit Agreement is hereby amended to (a) delete the period at the end of clause (k) thereof and replace it with “; and” and (b) add the
following clause (l) immediately following clause (k): 
 “(l) Subject to the satisfaction of the Merger Conditions,
enter into and consummate the Parent Merger.” 
 1.12 Clauses (iii), (iv), (v) and (vii) of
Section 10.03(a) of the Credit Agreement are hereby amended and restated in their entirety to read as follows: 

“(iii) the Company may pay cash Dividends to Holdings (which, prior to the Merger Effective Date, may, in turn, pay cash Dividends to
Parent in an amount equal to the cash Dividend received from the Company) to permit Parent to make (and Parent shall promptly make, in such amount so received) payments pursuant to and in accordance with stock option plans and other benefit plans
for management and employees of Parent, Holdings and the Subsidiaries that have been approved by the board of directors of Parent, provided that (x) the aggregate amount of all Dividends paid by the Company and Holdings to or for the benefit of
Parent pursuant to this clause (iii) in respect of all such payments shall not exceed $1,000,000 in any Fiscal Year of Holdings, which amount, if not used in any Fiscal Year, may be carried forward to the next Fiscal Year of Holdings (but not
to any subsequent Fiscal Year) and (y) at the time of any such Dividend or payment pursuant to this Section 10.03(a)(iii), no Default or Event of Default shall then exist or result therefrom; 

(iv) the Company may pay cash Dividends to Holdings (which, prior to the Merger Effective Date, may, in turn, pay cash Dividends to Parent
in an amount equal to the cash Dividend received from the Company) at such times and in such amounts, as shall be necessary to permit Parent and Holdings to discharge their corporate overhead (including franchise taxes and directors fees) and other
permitted liabilities, provided that (x) the aggregate amount of all Dividends paid by the Company and Holdings to Parent in respect of all such payments shall not exceed $3,000,000 in any Fiscal Year of Holdings, (y) at the time of any
such Dividend or payment pursuant to this Section 10.03(a)(iv), no Default or Event of Default shall then exist or result therefrom, and (z) the Dividends are used for such purpose; 

  
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 (v) the Company may pay cash Dividends to Holdings (which, prior to the Merger Effective
Date, may, in turn, pay cash Dividends to Parent in an amount equal to the cash Dividend received from the Company) at such times and in the amount of and as shall be necessary to pay any income taxes that are due and payable by Parent and Holdings
as part of a consolidated group that includes the Company (as and for so long as the Company is a member of such consolidated tax group), to the extent that such taxes relate to the operations of the Company and its Subsidiaries (and, in any event,
do not exceed the actual amount of taxes due and payable by Parent or Holdings, as the case may be) and the Dividends are used for such purpose; 
 (vii) the Company may pay Dividends to Holdings (which, prior to the Merger Effective Date, may, in turn, pay Dividends to Parent in an amount equal to the Dividends received from the Company) so long as
the Tier I Payment Conditions are satisfied both immediately before and after giving effect to the payment of such Dividends;” 
 1.13 Section 10.03(b) of the Credit Agreement is hereby amended and restated in its entirety to read as follows 
 “(b) Holdings will not, and will not permit any of its Subsidiaries to make any payments (whether voluntary or mandatory, or a prepayment, redemption, retirement, defeasance or acquisition) including
as a result of any change of control or similar event, asset sale, insurance or condemnation event, debt issuance, equity issuance or capital contribution (including, in each case without limitation, by way of depositing with any agent or trustee
with respect thereto money or securities before due for the purpose of paying when due) (i) with respect to any Subordinated Debt, except for scheduled principal, interest and fees, but only to the extent permitted under any subordination
agreement relating to such Indebtedness (it being agreed that this provision shall not be deemed to authorize mandatory prepayments or redemptions of such Subordinated Debt, including as a result of the failure to satisfy the Reinvestment
Condition); or (ii) with respect to any other Indebtedness of the Credit Parties (other than the Obligations and other than to the extent such Indebtedness consists of Capitalized Lease Obligations or purchase money Indebtedness and is
mandatorily repaid in connection with the sale of an asset securing such Indebtedness, if such sale is permitted hereunder) prior to its due date under the agreements evidencing such Indebtedness; it being agreed that notwithstanding the foregoing
restrictions in clauses (i) and (ii) above, (1) so long as no Default or Event or Default then exists or would result therefrom, Holdings may make the IPO Prepayments and (2) so long as the Tier I Payment Conditions would be
satisfied (both immediately before and after giving effect to any such payment), Holdings and the Subsidiaries may make any prepayment or redemption of any such Subordinated Debt or other Indebtedness not otherwise permitted hereunder to the extent
permitted pursuant to the terms of the Senior Secured Notes Documents, the Senior Subordinated Notes Documents, any Additional Senior Secured Notes Documents, any Additional Senior Subordinated Notes Documents, any Supplemental Material Indebtedness
Documents or any other material agreements to which the Credit Parties are subject.” 

  
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 1.14 Section 10.04(b) of the Credit Agreement is hereby amended
and restated in its entirety to read as follows: 
 “(b) Indebtedness (including Contingent Obligations) of Holdings and its
Subsidiaries as of the Effective Date, as set forth on Schedule 10.04 and including for purposes hereof on and after the Merger Effective Date, the Parent PIK Note, and which is to remain outstanding after giving effect to the Transaction and
the Refinancing, in each case showing the aggregate principal amount thereof and the name of the respective borrower and any Credit Party or any of its Subsidiaries which directly or indirectly guarantees such debt (all such Indebtedness, the
“Existing Indebtedness”), and any extension, renewal or refinancing thereof; provided that in any event, the terms of any such extension, renewal or refinancing Indebtedness in respect of 

(1) such Existing Indebtedness, other than the Existing Senior Subordinated Notes or any Additional Senior Subordinated Notes:

 (u) shall be on market terms, 
 (v) shall not contain restrictions, agreements or defaults which are materially more restrictive on the Credit Parties than the Existing Indebtedness so being extended, renewed or refinanced, provided
that, in the case of any extension, renewal or refinancing of Excluded Foreign Subsidiary Indebtedness, this clause (v) shall not be deemed to restrict any such restriction, agreement or default applicable to Persons other than the Credit
Parties, 
 (w) with respect to any such Indebtedness, shall not add guarantors, obligors or security from that which applied to
the Existing Indebtedness so being extended, renewed or refinanced, provided that, in the case of any extension, renewal or refinancing of Excluded Foreign Subsidiary Indebtedness, the addition of guarantors, obligors or security thereof, thereon or
therefor (other than any of the Credit Parties or any of their respective assets) shall not be restricted by this clause (w), 

(x) shall not be in a principal amount that exceeds the then outstanding principal amount of the Existing Indebtedness so being extended,
renewed or refinanced (plus accrued interest, premium, fees and other amounts owing thereon), 
 (y) to the extent such Existing
Indebtedness so being extended, renewed or refinanced is subordinated to the Obligations, such new extended, renewed or refinanced Indebtedness shall be subordinated to the Obligations on the same terms (or, from the perspective of the Lenders,
better terms) as the Indebtedness so being extended, renewed or refinanced, and 

  
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 (z) shall not have an earlier maturity date or a decreased weighted average life to
maturity than the Existing Indebtedness being so extended, renewed or refinanced; 
 (2) the Existing Senior Subordinated Notes
or any Additional Senior Subordinated Notes: 
 (y) shall extend, renew or refinance such Existing Senior Subordinated Notes or
any Additional Senior Subordinated Notes in accordance with the terms of the Existing Senior Subordinated Notes Documents and/or Additional Senior Subordinated Notes Documents, as applicable, and 

(z) shall be (i) Additional Senior Secured Notes issued pursuant to and in accordance with Section 10.04(p) or
(ii) Indebtedness otherwise meeting the requirements set forth in the immediately preceding clauses (1)(u) through (y) of this Section 10.04(b) (as such would be determined with reference to the Existing Senior
Subordinated Notes and/or Additional Senior Subordinated Notes being so renewed, extended or refinanced) and which shall not (A) have a maturity date or require any mandatory sinking fund, redemptions or other similar payments or any mandatory
prepayment or call provisions (other than customary call provisions upon a change of control), in any case, at any time prior to a date occurring less than six (6) months after the Final Maturity Date, (B) have a weighted average life to
maturity (calculated as of the date of issuance thereof) occurring prior to the date that is six (6) months after the Final Maturity Date or (C) result in the occurrence of a Default or Event of Default;” 

1.15 Section 10.04(q) of the Credit Agreement is hereby amended and restated in its entirety to read as follows: 

“(q) so long as no Default or Event of Default then exists or would result therefrom, additional unsecured Indebtedness of the
Company and its Subsidiaries in an aggregate principal amount not to exceed $300,000,000 (less the amount of Indebtedness of non-Credit Parties that are not Subsidiaries which are guaranteed by any Credit Party pursuant to
Section 10.04(f)(iii)) at any time outstanding, as such amount may be reduced to the extent that the amount of Indebtedness permitted by Section 10.04(o) is increased and utilized; provided that, with respect to any
issuance of any such Indebtedness in any single series or related series (including under a common indenture or agreement, as supplemented from time to time) in an aggregate original principal amount in excess of $100,000,000, such additional
unsecured Indebtedness shall (i) be on market terms, (ii) not have a maturity date or require any mandatory sinking fund, redemptions or other similar payments or required prepayments or call provisions (other than customary call
provisions upon a change of control), in each case, at any time prior to a date occurring less than six (6) months after the Final Maturity Date, (iv) not have a weighted average life to maturity (calculated as of the date of issuance
thereof) occurring prior to the date that is six (6) months after the Final Maturity Date.” 

  
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 1.16 Clause (B) of the first proviso of Section 10.05(h) of
the Credit Agreement is hereby amended and restated in its entirety to read as follows: 
 “(B) in the case of an
Intercompany Loan made by or to a Credit Party, such Intercompany Loan shall be evidenced by an Intercompany Note, and in the case of an Intercompany Loan made to a Credit Party, such Intercompany Loan shall be subordinate to the Obligations and, in
the case of any Intercompany Loan made by a Credit Party, the Intercompany Note evidencing such Intercompany Loan shall be pledged to the Collateral Agent and the Security Condition shall be otherwise satisfied with respect thereto;”

 1.17 Section 10.05(j) is hereby amended by adding the following immediately before the semicolon:

 “, and the Company may, accept a capital contribution of all of the Equity Interests of Affinia Acquisition LLC that it
does not then own; provided that, in connection with such capital contribution, the Company shall comply with the requirements set forth in Section 9.10 hereof”. 

1.18 The parenthetical appearing in Section 10.05(p) is hereby amended and restated in its entirety to read as
follows: 
 “(other than acquisitions of assets or Equity Interests of any Person which is or would become an Acquired
Entity or Business)”. 
 1.19 Section 10.05(q) is hereby amended by deleting the semicolon in
the third line thereof. 
 1.20 Section 10.08(b) of the Credit Agreement is hereby amended and
restated in its entirety to read as follows: 
 “(b) amend, modify, change or waive in any manner (x) any subordination
provision of any Existing Senior Subordinated Note Document, Additional Senior Subordinated Note Document or, on and after the Merger Effective Date, the Parent PIK Note, (y) any other provision of any Existing Senior Subordinated Note
Document, Additional Senior Subordinated Note Document, or any provision of any Supplemental Material Indebtedness Documents, or, on and after the Merger Effective Date, the Parent PIK Note, in each case, in a manner which is adverse to the
interests of the Lenders in any material respect, or (z) on and after the Merger Effective Date, any provision of the Parent Stockholders Agreement or of any other document relating to the Preferred Equity of Parent, in either case, in a manner
which is adverse to the interests of the Lenders in any material respect;” 

  
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 1.21 Section 10.10(a) of the Credit Agreement is hereby amended
and restated in its entirety to read as follows: 
 “(a) Holdings will not, and will not permit any of its Subsidiaries to,
issue or permit to be outstanding any preferential or redeemable Equity Interests other than common stock or other redeemable common Equity Interests that is or are redeemable at the sole option of Holdings or such Subsidiary, as the case may be,
other than in the case of Parent, the Preferred Equity of Parent; provided however, that from and after the Merger Effective Date, any such rights under such Preferred Equity of the Parent would not be exercisable or effective prior to the date
occurring six months after the Final Maturity Date.” 
 1.22 Section 11.14 of the Credit
Agreement is hereby amended and restated in its entirety to read as follows: 
 “11.14 Subordination. The Existing
Senior Subordinated Notes or any guarantees thereof, any Additional Senior Subordinated Notes or any guarantees thereof or the Parent PIK Note, shall cease, for any reason (other than repayment in accordance with the terms hereof), to be validly
subordinated to the respective Obligations of the U.S. Credit Parties as provided in the Existing Senior Subordinated Notes Documents or the Additional Senior Subordinated Notes Documents, or the terms of the Parent PIK Note, as applicable, or any
U.S. Credit Party or the holders of at least 25% in aggregate principal amount of the Existing Senior Subordinated Notes, or the Additional Senior Subordinated Notes or any holder of the Parent PIK Note, as applicable, shall so assert; or”.

 1.23 Clause (i)(x) of Section 13.01(a) of the Credit Agreement is hereby amended and restated in
its entirety to read as follows: 
 “(x) of due diligence including the initial and any subsequent field examinations and/or
inventory appraisals required (A) pursuant to Section 6.17 to the extent performed by third parties and (B) pursuant to Section 9.02(b) and”. 

1.24 Clause (iii) of Section 13.01(a) of the Credit Agreement is hereby amended and restated in its
entirety to read as follows: 
 “(iii) the Administrative Agent’s reasonable and documented out of pocket costs and
expenses of third party field examiners or the Administrative Agent’s then standard per diem charges for field examinations for each day that an employee of Administrative Agent or its Affiliates is engaged in any field examination, as
applicable, and, in each case, other reasonable out of pocket expenses and”. 
 1.25 The penultimate
sentence of Section 13.22 of the Credit Agreement is hereby amended and restated in its entirety to read as follows: 

“The Administrative Agent accepts no responsibility and shall have no liability for the calculation of the exposure owing by the
Credit Parties under any such Qualified Secured Hedging Agreement and/or Qualified Secured Cash Management Agreement or the amount of Canadian Qualified Secured Hedging Agreement Reserve, U.S. Qualified Secured Hedging Agreement Reserve, Canadian
Qualified Secured Cash Management Agreement Reserve and/or U.S. Qualified Secured Cash Management Reserve, and shall be entitled in all cases to rely on the applicable Lender (or Affiliate thereof) and the applicable Credit Party party to such
agreement for the calculation thereof.” 

  
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 1.26 Schedule 1.01(b) is hereby amended by increasing each of the
U.S. Concentration Limit and the Canadian Concentration Limit relating to O’Reilly/CSK and its Affiliated Account Debtors from 15% to 30%. 
 SECTION 2. CONDITIONS TO EFFECTIVENESS. This Amendment shall become effective on and as of the date when each of the following conditions precedent shall have been satisfied in a manner satisfactory to
Administrative Agent (the first date upon which all such conditions have been satisfied being herein called the “Amendment Effective Date”): 
 2.1 All representations and warranties of the Credit Parties set forth herein shall be true and correct in all material respects as of the Amendment Effective Date as if made on such date (it being
understood and agreed that any representation or warranty which by its terms is made as of a specified date shall be required to be true and correct in all material respects only as of such specified date). 

2.2 No Default or Event of Default shall exist or would result from the execution and delivery of this Amendment.

 2.3 The Administrative Agent shall have received executed counterparts of this Amendment from the
Administrative Agent, the Lenders and each of the Credit Parties, together with fully executed copies of all Assignment and Assumption Agreements from any non-consenting Lenders in favor of consenting Lenders, all of which assignments contemplated
thereby shall have been effected immediately prior to the Third Amendment Effective Date. 
 2.4 No event or
condition shall have occurred or exists which, in the opinion of the Administrative Agent or any of the Lenders, could reasonably be expected to, individually or in the aggregate, have a material adverse effect on the business, assets, properties,
liabilities, results of operations or condition (financial or otherwise) of the Credit Parties, taken as a whole or which could reasonably be expected to materially and adversely affect the credit facility evidenced by the Credit Documents, the
rights of the Lenders thereunder or the transactions contemplated thereby. 
 2.5 The Administrative Agent shall
have received in form and substance reasonably satisfactory to the Administrative Agent and the Lenders, of all financial and other reports required to date under the Credit Agreement. 

2.6 The Administrative Agent shall be satisfied, in its reasonable judgment, with the results of its due diligence in
connection with this Amendment, including without limitation, the field exams and the appraisals. 
 2.7 The
Administrative Agent shall have received all necessary consents and/or amendments to consummate the transactions contemplated hereby under and pursuant to the Existing Senior Subordinated Notes Documents and the Senior Secured Notes Documents and
the Intercreditor Agreement. 

  
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 2.8 The Administrative Agent shall have received a fully-executed side
letter reasonably satisfactory to it from the Company and Holdings regarding the timing for finalization of all actions required by Section 9.10 of the Credit Agreement with regard to Affinia Acquisition LLC and its subsidiaries.

 2.9 The Administrative Agent shall have received such other documentation with respect to this Amendment
reasonably requested by it, including, as and to the extent applicable, notes (if applicable), reallocations and/or assignments of the Lenders’ commitments (as applicable), evidences of corporate authority, officers’ certificates, opinions
of counsel, UCC financing statement(s) and such other documents necessary to ensure the perfection of an enforceable first priority (or, to the extent applicable, second priority) perfected security interest in or lien on the Collateral to the
Collateral Agent. 
 2.10 The Borrowers shall have paid and the Administrative Agent shall have received all fees
due and payable pursuant to that certain fee letter agreement dated as of November 3, 2010 among the Company, Holdings, the Agent, and the Lead Arranger. 
 2.11 The Borrowers shall have paid to the Administrative Agent and each Lender all fees and reasonable and documented out of pocket expenses (subject to Section 13.01(a) of the Credit
Agreement), including, without limitation, reasonable legal fees and expenses) to the extent then invoiced, with such invoices provided to the Company at least one Business Day prior to the Effective Date, in each case, in immediately available
funds. 
 SECTION 3. REPRESENTATIONS. 
 3.1 Each of the Credit Parties hereby represents and warrants to the Administrative Agent and the Lenders that as of the date hereof: 

(a) the representations of the Credit Parties contained in the Credit Agreement and the other Credit Documents, as amended by this
Amendment, are true and correct in all material respects as of the date hereof as if made on such date (it being understood and agreed that any representation or warranty which by its terms is made as of a specified date shall be required to be true
and correct in all material respects only as of such specified date); 
 (b) no Default or Event of Default has occurred and is
continuing or would result from the execution, delivery and performance of this Amendment; 
 (c) the execution, delivery and
performance by the Credit Parties of this Amendment and any other documents executed in connection with or as a condition precedent to this Amendment (collectively, the “Amendment Documents”) (i) have been duly authorized by
all necessary corporate and, if required, shareholder action on the part of the Credit Parties, (ii) will not violate any applicable material law or regulation or the organizational documents of any Credit Party, (iii) will not violate or
result in a default under any material indenture, agreement or other instrument binding on any Credit Party and (iv) do not require any consent, waiver or approval of or by any Person (other than the Administrative Agent and the Lenders) which
has not been obtained; and 

  
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 (d) the Amendment Documents and all Credit Documents amended hereby constitute the valid and
legally binding obligations of the Credit Parties party hereto, enforceable against each such Credit Party in accordance with their terms, subject to (i) applicable bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium and
other similar laws relating to affecting creditors’ rights generally and (ii) general equitable principles (whether considered in a proceeding in equity or at law). 
 SECTION 4.GENERAL PROVISIONS. 
 4.1 No Changes. Except as
expressly provided in this Amendment, the terms and provisions of the Credit Agreement and each other Credit Document shall remain in full force and effect and are hereby affirmed, confirmed and ratified in all respects. This Amendment shall not be
deemed to constitute a waiver or release of any Default or Event of Default or any remedies or rights of Administrative Agent or the Lenders with respect thereto, all of which are hereby reserved. 

4.2 Ratification. The Credit Parties hereby ratify, confirm and affirm without condition, all Liens and security
interests granted to the Collateral Agent pursuant to the Credit Agreement and the other Credit Documents and such Liens and security interests shall continue to secure the Obligations under the Credit Agreement, as amended hereby. 

4.3 Attorney’s Fees and Costs. Each of the Credit Parties hereby jointly and severally agrees to reimburse the
Administrative Agent for all of its reasonable and documented out-of-pocket legal fees and expenses incurred in the preparation and documentation of this Amendment and related documents. 

4.4 GOVERNING LAW; SUBMISSION TO JURISDICTION; VENUE; WAIVER OF JURY TRIAL; OTHER WAIVERS. (a) THIS AMENDMENT
SHALL BE GOVERNED BY THE LAWS OF THE STATE OF NEW YORK.  
 (b) EACH CREDIT PARTY HEREBY CONSENTS TO THE NON-EXCLUSIVE
JURISDICTION OF ANY FEDERAL OR STATE COURT SITTING IN THE COUNTY OF NEW YORK, IN ANY PROCEEDING OR DISPUTE RELATING IN ANY WAY TO THIS AMENDMENT AND AGREES THAT ANY SUCH PROCEEDING SHALL BE BROUGHT BY IT SOLELY IN ANY SUCH COURT. EACH CREDIT PARTY
IRREVOCABLY WAIVES ALL CLAIMS, OBJECTIONS AND DEFENSES THAT IT MAY HAVE REGARDING SUCH COURT’S PERSONAL OR SUBJECT MATTER JURISDICTION, VENUE OR INCONVENIENT FORUM. EACH PARTY HERETO IRREVOCABLY CONSENTS TO SERVICE OF PROCESS IN THE MANNER
PROVIDED FOR IN THE CREDIT AGREEMENT. 
 (c) NOTHING HEREIN SHALL LIMIT THE RIGHT OF ADMINISTRATIVE AGENT OR ANY LENDER TO
BRING PROCEEDINGS AGAINST ANY CREDIT PARTY IN ANY OTHER COURT, NOR LIMIT THE RIGHT OF ANY PARTY TO SERVE PROCESS IN ANY OTHER MANNER PERMITTED BY APPLICABLE LAW. NOTHING IN THIS AMENDMENT SHALL BE DEEMED TO PRECLUDE ENFORCEMENT BY ADMINISTRATIVE
AGENT OF ANY JUDGMENT OR ORDER OBTAINED IN ANY FORUM OR JURISDICTION. 
 (d) EACH OF THE PARTIES TO THIS AMENDMENT HEREBY
IRREVOCABLY WAIVES ALL RIGHT TO A TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM ARISING OUT OF OR RELATING TO THIS AMENDMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY. 

  
 21 

 4.5 Counterparts. This Amendment may be executed in one or more
counterparts, each of which shall constitute an original, but all of which taken together shall be one and the same instrument. This Amendment may also be delivered by facsimile or electronic mail and each signature page hereto delivered by
facsimile or electronic mail shall be deemed for all purposes to be an original signatory page. 
 4.6 Further
Assurances. Each Credit Party covenants and agrees that it will at any time and from time to time do, execute, acknowledge and deliver, or will cause to be done, executed, acknowledged and delivered, all such further acts, documents and
instruments as reasonably may be required by the Administrative Agent or any of the Lenders to effectuate fully the intent of this Amendment. 
 4.7 Captions. The captions in this Amendment are inserted for convenience of reference only and in no way define, describe or limit the scope or intent of this Amendment or any of the provisions
hereof. 
 4.8 References. On or after the Amendment Effective Date, each reference in the Credit
Agreement to this “Agreement” or words of like import, and each reference in any Credit Document or any other agreement to the Credit Agreement shall, in each case, unless the context otherwise requires, be deemed to refer to the Credit
Agreement as amended hereby. This Amendment, on and after the Amendment Effective Date, shall constitute a “Credit Document” for all purposes under the Credit Agreement and the other Credit Documents. 

4.9 Severability. Any provision of this Amendment held by a court of competent jurisdiction to be invalid or
unenforceable shall not impair or invalidate the remainder of this Amendment and the effect thereof shall be confined to the provision so held to be invalid or unenforceable. 

4.10 Successors and Assigns. This Amendment shall inure to the benefit of the Administrative Agent and the Lenders,
their respective successors and assigns and be binding upon the Credit Parties, their successors and assigns. 

4.11 No Novation. This Amendment shall not extinguish the Loans or other Obligations outstanding under the Credit
Agreement and/or any of the other Credit Documents as in effect prior to the effectiveness of this Amendment. Nothing herein contained shall be construed as a substitution, novation or repayment of the Loans or other Obligations outstanding under
the Credit Agreement and/or any of the other Credit Documents as in effect prior to the effectiveness of this Amendment, all of which shall remain outstanding in full force and effect after the effectiveness of this Amendment. 

  
 22 

 IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be executed by their
respective officers thereunto duly authorized and delivered as of the date first written above. 
  

							
	Holdings:	 		 	
			
		 		 	AFFINIA GROUP INTERMEDIATE HOLDINGS INC.
				
		 		 	By:	 	   /s/ Thomas H. Madden

		 		 	Name: Thomas H. Madden
		 		 	Title: Senior Vice President and Chief Financial Officer
				
	U.S. Borrowers:	 		 		 	
			
		 		 	AFFINIA GROUP INC.
				
		 		 	By:	 	   /s/ Thomas Kaczynski

		 		 	Name: Thomas Kaczynski
		 		 	Title: Corporate Treasurer
			
		 		 	AFFINIA INTERNATIONAL HOLDINGS CORP.
				
		 		 	By:	 	   /s/ Thomas Kaczynski

		 		 	Name: Thomas Kaczynski
		 		 	Title: Corporate Treasurer
			
		 		 	AFFINIA CANADA GP CORP.
				
		 		 	By:	 	   /s/ Thomas Kaczynski

		 		 	Name: Thomas Kaczynski
		 		 	Title: Corporate Treasurer
			
		 		 	AFFINIA PRODUCTS CORP LLC
				
		 		 	By:	 	   /s/ Thomas Kaczynski

		 		 	Name: Thomas Kaczynski
		 		 	Title: Corporate Treasurer
			
		 		 	AUTOMOTIVE BRAKE COMPANY INC.
				
		 		 	By:	 	   /s/ Thomas Kaczynski

		 		 	Name: Thomas Kaczynski
		 		 	Title: Corporate Treasurer

  
 [Signature
Page to Third Amendment to Credit Agreement] 

							
		 		 	BRAKE PARTS INC.
				
		 		 	By:	 	   /s/ Thomas Kaczynski

		 		 	Name: Thomas Kaczynski
		 		 	Title: Corporate Treasurer
			
		 		 	WIX FILTRATION CORP LLC
				
		 		 	By:	 	   /s/ Thomas Kaczynski

		 		 	Name: Thomas Kaczynski
		 		 	Title: Corporate Treasurer
			
		 		 	WIX FILTRATION MEDIA SPECIALISTS INC.
				
		 		 	By:	 	   /s/ Thomas Kaczynski

		 		 	Name: Thomas Kaczynski
		 		 	Title: Corporate Treasurer
				
	U.S. Subsidiary Guarantors:	 		 		 	
			
		 		 	IROQUOIS TOOL SYSTEMS, INC.
				
		 		 	By:	 	   /s/ Thomas Kaczynski

		 		 	Name: Thomas Kaczynski
		 		 	Title: Corporate Treasurer
			
		 		 	KRIZMAN INTERNATIONAL, INC. 
				
		 		 	By:	 	   /s/ Thomas Kaczynski

		 		 	Name: Thomas Kaczynski
		 		 	Title: Corporate Treasurer
				
	Canadian Borrower:	 		 		 	
			
		 		 	AFFINIA CANADA ULC
				
		 		 	By:	 	   /s/ Thomas H. Madden

		 		 	Name: Thomas H. Madden
		 		 	Title: Director

  
 [Signature
Page to Third Amendment to Credit Agreement] 

									
	Canadian Subsidiary Guarantors:	 		 		 		 	
			
		 		 	 AFFINIA CANADA L.P.

		 		 	By: Affinia Canada GP Corp., its General Partner
					
		 		 		 	By:	 	   /s/ Thomas Kaczynski

		 		 		 	Name: Thomas Kaczynski
		 		 		 	Title: Corporate Treasurer

  
 [Signature
Page to Third Amendment to Credit Agreement] 

							
	Administrative Agent and Lenders:	 		 	BANK OF AMERICA, N.A., individually as a
Lender and as Administrative Agent
				
		 		 	By:	 	   /s/ Kenneth D. Horwath

		 		 	Name: Kenneth D. Horwath
		 		 	Title: Vice President
			
		 		 	BANK OF AMERICA, N.A. (acting through its
Canada branch), as a Canadian Lender
				
		 		 	By:	 	   /s/ Medina Sales de Andrade

		 		 	Name: Medina Sales de Andrade
		 		 	Title: Vice President

  
 [Signature
Page to Third Amendment to Credit Agreement] 

  

							
		 		 	JPMORGAN CHASE BANK, N.A., individually as a
U.S. Lender and a Canadian Lender and as a
Co-Documentation Agent
				
		 		 	By:	 	   /s/ Robert P. Kellas

		 		 		 	Name: Robert P. Kellas
		 		 		 	Title: Executive Director

  
 [Signature
Page to Third Amendment to Credit Agreement] 

			
	 BARCLAYS BANK PLC, as a U.S. Lender and
 as a Canadian Lender

		
	By:	 	 /s/ Noam Azachi

		 	 Name: Noam Azachi
 Title:
Assistant Vice President

  
 [Signature
Page to Third Amendment to Credit Agreement] 

  

			
	 DEUTSCHE BANK AG, CANADA BRANCH,
 as a Canadian Lender

		
	By:	 	   /s/ Paul M. Jurist

		 	 Name: Paul M. Jurist
 Title:
Chief Country Officer

		
	By:	 	   /s/ Marcellus Leung

		 	 Name: Marcellus Leung
 Title:
Assistant Vice President

  
 [Signature
Page to Third Amendment to Credit Agreement] 

  

			
	 DEUTSCHE BANK TRUST COMPANY AMERICAS, individually as a U.S. Lender and

as a Co-Documentation Agent

		
	By:	 	   /s/ Omayra Laucella

		 	 Name: Omayra Laucella
 Title:
Vice President

		
	By:	 	   /s/ Evelyn Thierry

		 	 Name: Evelyn Thierry
 Title:
Director

  
 [Signature
Page to Third Amendment to Credit Agreement] 

  

			
	 WELLS FARGO CAPITAL FINANCE, LLC, individually as a U.S. Lender and as a

Co-Syndication Agent

		
	By:	 	   /s/ Kevin Cox

		 	 Name: Kevin Cox
 Title: Vice
President

  
 [Signature
Page to Third Amendment to Credit Agreement] 

			
	 WELLS FARGO FOOTHILL CANADA ULC,
 as a Canadian Lender

		
	By:	 	   /s/ Kevin Cox

		 	 Name: Kevin Cox
 Title: Vice
President

  
 [Signature
Page to Third Amendment to Credit Agreement] 

  

			
	 PNC BANK NATIONAL ASSOCIATION, as a
 U.S. Lender

		
	By:	 	   /s/ Michael Etienne

		 	 Name: Michael Etienne

Title: VP

  
 [Signature
Page to Third Amendment to Credit Agreement] 

			
	COMERICA BANK, as a U.S. Lender
		
	By:	 	   /s/ Thomas VanderMeulen

		 	 Name: Thomas VanderMeulen

Title: Vice President

  
 [Signature
Page to Third Amendment to Credit Agreement] 

  

			
	 RB INTERNATIONAL FINANCE (USA) LLC
 (F/K/A RZB FINANCE LLC), as a U.S. Lender

		
	By:	 	   /s/ Christoph Hoedl

		 	 Name: Christoph Hoedl

Title: First Vice President

		
	By:	 	   /s/ John A. Valiska

		 	 Name: John A. Valiska

Title: First Vice President

  
 [Signature
Page to Third Amendment to Credit Agreement] 

  

			
	 RBS BUSINESS CAPITAL, A DIVISION OF
 RBS ASSET FINANCE, INC., A SUBSIDIARY
 OF RBS CITIZENS, NA, as a U.S. Lender

		
	By:	 	   /s/ James H. Herzog, Jr.

		 	 Name: James H. Herzog, Jr.

Title: Senior Vice President

  
 [Signature
Page to Third Amendment to Credit Agreement] 

  

			
	 U.S. BANK NATIONAL ASSOCIATION, as a
 U.S. Lender

		
	By:	 	   /s/ Lynn Gosselin

		 	 Name: Lynn Gosselin
 Title:
Vice President

  
 [Signature
Page to Third Amendment to Credit Agreement] 

  

			
	 U.S. BANK NATIONAL ASSOCIATION,
 CANADA BRANCH, as a Canadian Lender

		
	By:	 	   /s/ Paul Rodgers

		 	 Name: Paul Rodgers
 Title:
Principal Officer

  
 [Signature
Page to Third Amendment to Credit Agreement] 

			
	REGIONS BANK, as a U.S. Lender
		
	By:	 	   /s/ Kathy B. Le

		 	 Name: Kathy B. Le
 Title:
Vice President

  
 [Signature
Page to Third Amendment to Credit Agreement] 

  

			
	 CAPITAL ONE LEVERAGE FINANCE CORP.,
 as a U.S. Lender

		
	By:	 	   /s/ Ron Walker

		 	 Name: Ron Walker
 Title:
Senior Vice President

  
 [Signature
Page to Third Amendment to Credit Agreement]

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