Document:

Exhibit 10.1

                              SENIOR GUARANTEE

     For value received, each of the undersigned (the "Senior Guarantors"),
to the extent set forth in and subject to the terms of the Indenture, dated
as of April 13,  2004,  among  NTL  Cable  PLC,  a public  limited  company
organized  under  the  laws  of  England  and  Wales  (the  "Issuer"),  NTL
Incorporated,  a Delaware  corporation  (formerly known as Telewest Global,
Inc.),  NTL Holdings Inc., a Delaware  corporation  (formerly  known as NTL
Incorporated),   NTL  (UK)  Group,  Inc.,  a  Delaware   corporation,   NTL
Communications  Limited,  a  limited  company  organized  under the laws of
England and Wales,  NTL  Investment  Holdings  Limited,  a limited  company
organized  under the laws of  England  and Wales  ("NTLIH"  or the  "Senior
Subordinated Subsidiary  Guarantor"),  and The Bank of New York, as trustee
(the  "Trustee"),  as  amended  or  supplemented  from  time to  time  (the
"Indenture"),  hereby  jointly and severally  with one another and with the
Senior Subordinated  Subsidiary  Guarantor  irrevocably and unconditionally
guarantees to each Holder and to the Trustee and its successors and assigns
(1) the full and punctual payment when due, whether at Stated Maturity,  by
acceleration,  by redemption or otherwise, of all obligations of the Issuer
under the Indenture  (including  obligations to the Trustee) and the Notes,
whether  for payment of  principal  of or interest on or premium or Special
Interest,  if any, on the Notes and all other  monetary  obligations of the
Issuer  under the  Indenture  and the  Notes and (2) the full and  punctual
performance within applicable grace periods of all other obligations of the
Issuer whether for fees,  expenses,  indemnification or otherwise under the
Indenture and the Notes (all the foregoing being  hereinafter  collectively
called the "Guaranteed Obligations").  Each Senior Guarantor further agrees
that the Guaranteed  Obligations may be extended or renewed, in whole or in
part,  without notice or further assent from such Note Guarantor,  and that
such Note Guarantor shall remain bound under this Guarantee notwithstanding
any extension or renewal of any Guaranteed Obligation.

     The  obligations  of each Senior  Guarantor  to the Holders and to the
Trustee  pursuant to this  Guarantee and the  Indenture,  are expressly set
forth in Article 11 of the  Indenture,  and reference is hereby made to the
Indenture,  for the precise terms and limitations of this  Guarantee.  Each
Holder of the Note to which this  Guarantee is endorsed,  by accepting such
Note, agrees to and shall be bound by such provisions.

     Each Senior  Guarantee  will be limited to an amount not to exceed the
maximum  amount that can be  guaranteed  by such Senior  Guarantor  without
rendering such Senior  Guarantee  voidable under applicable law relating to
ultra vires, fraudulent conveyance,  fraudulent transfer, corporate benefit
or similar laws affecting the rights of creditors generally.

                       [Signatures on following page]

<PAGE>

     IN WITNESS WHEREOF, each Senior Guarantor has caused this Guarantee to
be signed by a duly authorized officer, on October 30, 2006.

                                   NTL HOLDINGS INC.

                                   By:  /s/ Bryan Hall
                                        --------------------------------
                                        Name: Bryan Hall
                                        Title: Secretary

                                   NTL (UK) GROUP, INC.

                                   By:  /s/ Robert Mackenzie
                                        --------------------------------
                                        Name: Robert Mackenzie
                                        Title: Director

                                   NTL COMMUNICATIONS LIMITED

                                   By:  /s/ Robert Mackenzie
                                        --------------------------------
                                        Name: Robert Mackenzie
                                        Title: Director

                                   NTL INCORPORATED

                                   By:  /s/ Bryan Hall
                                        --------------------------------
                                        Name: Bryan Hall
                                        Title: Secretary

                                   NTL:TELEWEST LLC

                                   By:  /s/ Bryan Hall
                                        --------------------------------
                                        Name: Bryan Hall
                                        Title: Secretarysuppindenture

    
      
        

      

    
      	 

    

     

     

    ___%
      SENIOR NOTES DUE 2016

     

    

     

    

     

    FIRST
      SUPPLEMENTAL INDENTURE

     

    

     

    

     

    between

     

    

     

    

     

    BORGWARNER
      INC.,

     

    

     

    as
      Issuer

     

    

     

    and

     

    

     

    

     

    THE
      BANK OF NEW YORK TRUST COMPANY, N.A.,

     

    

     

    

     

    as
      Trustee

     

    

     

    

     

    Dated
      as of [___________], 2006

     

    

     

    
      	 

    

    
       

    

     

     

     

     

    ARTICLE
      1

    Definitions

     

    
      	
              Section
                1.01

            	
              Definition
                of Terms

            	 2

    

     

    ARTICLE
      2

    The
      Notes

     

    
      	
              Section
                2.01

            	
              Designation

            	 3
	
              Section
                2.02 

            	
              Principal
                Amount; Series Treatment

            	 3
	
              Section
                2.03

            	
              Maturity

            	 3
	
              Section
                2.04

            	
              Interest

            	 3
              
	
              Section
                2.05     

            	
              Form
                of Notes

            	 4
	
              Section
                2.06   

            	
              Transfer
                Restrictions

            	 5
	
              Section
                2.07   

            	
              Transfers
                and Exchanges

            	 6

    

     

    ARTICLE
      3

    Redemption
      Of The Notes

     

    
      	
              Section
                3.01

            	
              Optional
                Redemption by Company

            	 6
	 Section
              3.02        	 Change
              of Control Repurchase Event	 6

    

     

    ARTICLE
      4

    Execution
      of The Notes

     

    
      	
              Section
                4.01

            	
              Execution;
                Certificates

            	9

    

     

    ARTICLE
      5

    Miscellaneous

     

    
      	
              Section
                5.01

            	
              Ratification
                of Indenture

            	 9
	
              Section
                5.02 

            	
              Trustee
                Not Responsible for Recitals

            	 9
	
              Section
                5.03

            	
              Governing
                Law

            	 10
	
              Section
                5.04

            	
              Separability

            	 10
	
              Section
                5.05     

            	
              Counterparts

            	 10

    

     

    
 

      
        

      

    

    

    FIRST
      SUPPLEMENTAL INDENTURE, dated as of November [__], 2006
      (the
“Supplemental
      Indenture”),
      between BorgWarner Inc., a Delaware corporation (the “Company”),
      and
      The Bank of New York Trust Company, N.A. successor in interest to J.P. Morgan
      Trust Company, N.A. (formerly known as Chase
      Manhattan Trust Company, National Association),
      a
      national banking association, as trustee (the “Trustee”),
      under
      the Indenture, dated as of September 23, 1999
      (the
“Indenture”),
      between the Company and the Trustee.

     

    WHEREAS,
      the Company executed and delivered the Indenture to the Trustee to provide
      for,
      among other things, the issuance from time to time of the Company’s debt
      securities in one or more series as might be authorized under the
      Indenture;

     

    WHEREAS,
      the Indenture provides that the Company and the Trustee may enter into an
      indenture supplemental to the Indenture to establish the form and terms of
      any
      series of Securities (as defined in the Indenture) as provided by Sections
      2.01
      and 3.01 of the Indenture; 

     

    WHEREAS,
      the Board of Directors of the Company has duly adopted resolutions authorizing
      the Company to issue the Securities provided for in this Supplemental
      Indenture;

     

    WHEREAS,
      the Company desires to enter into this Supplemental Indenture to provide for
      the
      establishment of Securities (as defined in the Indenture) to be known as the
      [__]% Senior Notes
      due
      2016 (the
      “Notes”),
      the
      form, substance, terms, provisions and conditions of which shall be set forth
      in
      the Indenture and this Supplemental Indenture;

     

    WHEREAS,
      the Company has requested that the Trustee execute and deliver this Supplemental
      Indenture and has satisfied all requirements necessary to make (i) this
      Supplemental Indenture a valid instrument in accordance with its terms and
      (ii)
      the Securities provided for hereby, when executed and delivered by the Company
      and authenticated by the Trustee, the valid obligations of the
      Company.

     

    NOW
      THEREFORE, each party agrees as follows for the benefit of the other parties
      and
      for the equal and ratable benefit of the Holders of the Notes:

     

    ARTICLE
      1  

     

    Definitions

     

    Section
      1.01.  Definition
      of Terms.

     

    Unless
      otherwise specified herein or the context otherwise requires:

     

    (a)  a
      term
      defined in the Indenture has the same meaning when used in this Supplemental
      Indenture unless the definition of such term is amended and supplemented
      pursuant to this Supplemental Indenture;

     

    (b)  the
      terms
      defined in this Article and in this Supplemental Indenture include the plural
      as
      well as the singular;

     

    (c)  a
      reference to a Section or Article is to a Section or Article of this
      Supplemental Indenture;

     

    (d)  Article
      and Section headings herein and the Table of Contents are for convenience only
      and shall not affect the construction hereof;

     

    (e)  the
      following terms have the meanings given to them in this Section
      1.01(e):

     

    “Depositary”
means
      the clearing agency registered under the Securities Exchange Act of 1934, as
      amended, that is designated to act as the depositary for the Global Notes.
      The
      Depository Trust Company shall be the initial Depositary, until a successor
      shall have been appointed and become such pursuant to the applicable provisions
      of this Indenture, and thereafter, “Depositary” shall mean or include such
      successor.

     

    “Global
      Note”
shall
      have the meaning set forth in Section
      2.05(b).

     

    “Initial
      Notes”
means
      (i) all Notes issued on the first date that Notes were originally issued under
      this Supplemental Indenture, (ii) any additional Notes issued under Section
      2.02(a)
      and
      (iii) any Notes issued in replacement therefor.

     

    “Notes”
shall
      have the meaning set forth in the recitals above and shall include any Global
      Note.

     

    ARTICLE
      2  

     

    The
      Notes

     

    Section
      2.01.  Designation.

     

    The
      Company hereby establishes a series of Securities designated the “[__]%
      Senior
      Notes due 2016” for issuance under the Indenture.

     

    Section
      2.02.  Principal
      Amount; Series Treatment.

     

    (a)  The
      Notes
      shall be initially limited to an aggregate principal amount of $[____________].
      The Company may, from time to time, without the consent of the Holders of the
      outstanding Notes, issue additional Notes, so that such additional Notes and
      the
      outstanding Notes shall be consolidated together and form a single series of
      Securities under the Indenture as supplemented by this Supplemental
      Indenture.

     

    (b)  Any
      additional Notes issued under Section
      2.02(a)
      shall
      have the same terms in all respects as the corresponding series of Notes, except
      that interest will accrue on the additional Notes from the most recent date
      to
      which interest has been paid on the Notes of such series (other than the
      additional Notes) or if no interest has been paid on the Outstanding Notes
      of
      such series from the first date that the Outstanding Notes were originally
      issued under the Indenture, as supplemented by this Supplemental
      Indenture.

     

    (c)  For
      all
      purposes of the Indenture and this Supplemental Indenture, all Notes, whether
      Initial Notes, or additional Notes issued under Section 2.02(a),
      shall
      constitute one series of Securities and shall vote together as one series of
      Securities.

     

    Section
      2.03.  Maturity.

     

    The
      Notes
      will become due and payable on November [__],
      2016.

     

    Section
      2.04.  Interest.
      The
      Notes will bear interest at the rate of [__]%
      per
      annum from November [__],
      2006 until
      the
      principal thereof becomes due and payable or to the date of redemption (if
      any)
      of the Notes, such interest to be payable semi-annually on May [__]
      and
      November [__]
      of each
      year, to the Holders of record of the Notes as of the close of business on
      the
[________]
      and
[________]
      preceding such interest payment dates, commencing, in the case of the Initial
      Notes or any additional Notes issued prior to such date, on May [__],
      2007. 

     

    Section
      2.05.  Form
      of Notes.

     

    (a)  The
      Notes
      shall contain the terms set forth in, and shall be substantially in the form
      of,
Exhibit
      A
      hereto.
      The terms and provisions contained in the form of Notes set forth in
Exhibit
      A
      shall
      constitute, and are hereby expressly made, a part of the Indenture, as
      supplemented by this Supplemental Indenture.

     

    Any
      of
      the Notes may have such letters, numbers or other marks of identification and
      such legends or endorsements placed thereon as the officers executing the same
      may approve (execution thereof to be conclusive evidence of such approval)
      and
      as are not inconsistent with the provisions of the Indenture, as supplemented
      by
      this Supplemental Indenture, or as may be required by the Depositary or as
      may
      be required to comply with any applicable law or with any rule or regulation
      made pursuant thereto or with any rule or regulation of any securities exchange
      or automated quotation system on which the Notes may be listed, or to conform
      to
      usage, or to indicate any special limitations or restrictions to which any
      particular Notes are subject.

     

    (b)  So
      long
      as the Notes are eligible for book-entry settlement with the Depositary, or
      unless otherwise required by law, or otherwise contemplated herein, all of
      the
      Notes shall be represented by one or more Notes in global form registered in
      the
      name of the Depositary or the nominee of the Depositary.

     

    The
      Notes
      shall be issued initially in the form of one or more permanent global securities
      in registered form, substantially in the form set forth in Exhibit
      A
      (the
“Global
      Notes”),
      registered in the name of the nominee of the Depositary, deposited with the
      Trustee, as custodian for the Depositary, duly executed by the Company and
      authenticated by the Trustee as hereinafter provided. The aggregate principal
      amount of the Global Notes may from time to time be increased or decreased
      by
      adjustments made on the records of the Trustee, as custodian for the Depositary
      or its nominee, in accordance with the instructions given by the Holder thereof,
      as hereinafter provided.

     

    The
      transfer and exchange of beneficial interests in any such Global Notes shall
      be
      effected through the Depositary in accordance with the Indenture and the
      applicable procedures of the Depositary. Except as provided in the Indenture,
      beneficial owners of a Global Note shall not be entitled to have certificates
      registered in their names, will not receive or be entitled to receive physical
      delivery of certificates in definitive form and will not be considered Holders
      of such Global Note.

     

    Any
      Global Note shall represent such of the Outstanding Notes as shall be specified
      therein and shall provide that it shall represent the aggregate amount of
      Outstanding Notes from time to time endorsed thereon and that the aggregate
      amount of Outstanding Notes represented thereby may from time to time be
      increased or reduced to reflect redemptions, transfers or exchanges permitted
      hereby. Any endorsement of a Global Note to reflect the amount of any increase
      or decrease in the amount of outstanding Notes represented thereby shall be
      made
      by the Trustee in such manner and upon instructions given by the Holder of
      such
      Notes in accordance with the Indenture and this Supplemental Indenture. Payment
      of principal of and interest and premium, if any, on any Global Note shall
      be
      made to the Holder of such Note.

     

    The
      Company and the Trustee may treat the Depositary (or its nominee) as the sole
      and exclusive owner of the Notes registered in its name for the purposes of
      payment of the principal of or interest on the Notes, giving any notice
      permitted or required to be given to registered owners under the Indenture,
      registering the transfer of Notes, obtaining any consent or other action to
      be
      taken by registered owners and for all other purposes whatsoever; and neither
      the Company nor the Trustee shall be affected by any notice to the contrary.
      Neither the Company nor the Trustee shall have any responsibility or obligation
      to any participant in the Depositary, any Person claiming a beneficial ownership
      interest in the Notes under or through DTC or any such participant, or any
      other
      Person which is not shown on the register as being a registered owner, with
      respect to either the Notes, the accuracy of any records maintained by the
      Depositary or any such participant, the payment by the Depositary or any such
      participant of any amount in respect of the principal of or interest on the
      Notes, any notice which is permitted or required to be given to registered
      owners under the Indenture, any consent given or other action taken by the
      Depositary as registered owner, or any selection by the Depositary of any
      participant or other Person to receive payment of principal, interest or
      Redemption Price of the Notes.

     

    Section
      2.06.  Transfer
      Restrictions.
      The
      following provisions shall apply only to Global Notes:

     

    (i) Each
      Global Note authenticated under this Supplemental Indenture shall be registered
      in the name of the Depositary or a nominee thereof and delivered to such
      Depositary or a nominee thereof or Trustee if the Trustee is acting as custodian
      for the Depositary or its nominee with respect to such Global Note, and each
      such Global Note shall constitute a single Note for all purposes of the
      Indenture and this Supplemental Indenture.

     

    (ii) Notwithstanding
      any other provision in this Supplemental Indenture, no Global Note may be
      exchanged in whole or in part for Notes registered, and no transfer of a Global
      Note in whole or in part may be registered, in the name of any Person other
      than
      the Depositary or a nominee thereof except as provided in Section 3.05 of the
      Indenture. Any Note issued in exchange for a Global Note or any portion thereof
      shall be a Global Note; provided that any such Note so issued that is registered
      in the name of a Person other than the Depositary or a nominee thereof shall
      not
      be a Global Note.

     

    (iii) Securities
      issued in exchange for a Global Note or any portion thereof pursuant to clause
      (ii) above shall be issued pursuant to Section 3.05 of the
      Indenture.

     

    (iv) At
      such
      time as all interests in a Global Note have been redeemed, repurchased,
      converted, canceled or exchanged for Notes in certificated form, such Global
      Note shall, upon receipt thereof, be canceled by the Trustee in accordance
      with
      standing procedures and instructions existing between the Depositary and the
      Trustee. At any time prior to such cancellation, if any interest in a Global
      Note is redeemed, repurchased, converted, canceled or exchanged for Notes in
      certificated form, the principal amount of such Global Note shall, in accordance
      with the standing procedures and instructions existing between the Depositary
      and the Trustee, be appropriately reduced, and an endorsement shall be made
      on
      such Global Note, by the Trustee, at the direction of the Trustee, to reflect
      such reduction.

     

    Section
      2.07.  Transfers
      and Exchanges.
      The
      Notes shall be transferred and exchanged by the Holders thereof and the Trustee
      in accordance with the terms and conditions set forth in Section 3.05 the
      Indenture. 

     

    ARTICLE
      3  

     

    Redemption
      Of The Notes

     

    Section
      3.01.  Optional
      Redemption by Company.
      The
      Notes may be redeemed at the option of the Company on the terms and conditions
      set forth in the form of Note set forth as Exhibit
      A.

     

    Section
      3.02.  Change
      of Control Repurchase Event.
      If
      a
      Change of Control Repurchase Event occurs, unless the Company has exercised
      its
      right to redeem the Notes as described in Section
      3.01,
      the
      Company will make an offer to each Holder to repurchase all or any part (in
      integral multiples of $1,000) of that Holder’s Notes at a purchase price in cash
      equal to 101% of the aggregate principal amount of Notes repurchased plus any
      accrued and unpaid interest on the Notes repurchased to the date of purchase.
      Within 30 days following any Change of Control Repurchase Event or, at the
      Company’s option, prior to any Change of Control, but after the public
      announcement of the Change of Control, the Company will mail a notice to each
      Holder, with a copy to the Trustee, describing the transaction or transactions
      that constitute or may constitute the Change of Control Repurchase Event and
      offering to repurchase the Notes on the payment date specified in the notice,
      which date will be no earlier than 30 days and no later than 60 days from the
      date such notice is mailed. The notice shall, if mailed prior to the date of
      consummation of the Change of Control, state that the offer to purchase is
      conditioned on the Change of Control Repurchase Event occurring on or prior
      to
      the payment date specified in the notice. 

     

    The
      Company will comply with the requirements of Rule 14e-1 under the Securities
      Exchange Act of 1934, as amended (the “Exchange
      Act”),
      and
      any other securities laws and regulations thereunder to the extent those laws
      and regulations are applicable in connection with the repurchase of the Notes
      as
      a result of a Change of Control Repurchase Event. To the extent that the
      provisions of any securities laws or regulations conflict with the Change of
      Control Repurchase Event provisions of this Note, the Company will comply with
      the applicable securities laws and regulations and will not be deemed to have
      breached its obligations under the Change of Control Repurchase Event provisions
      of this Note by virtue of such conflict.

     

    On
      the
      Change of Control Repurchase Event payment date, the Company will, to the extent
      lawful:

     

    (i) accept
      for payment all Notes or portions of Notes properly tendered pursuant to the
      Company’s offer;

     

    (ii) deposit
      with the paying agent an amount equal to the aggregate purchase price in respect
      of all Notes or portions of Notes properly tendered; and

     

    (iii) deliver
      or cause to be delivered to the Trustee the Notes properly accepted, together
      with an Officers’ Certificate stating the aggregate principal amount of Notes
      being purchased by the Company.

     

    The
      Paying Agent will promptly mail its check or otherwise cause to be paid to
      each
      holder of Notes properly tendered the purchase price for the Notes, and the
      Trustee will promptly authenticate and mail (or cause to be transferred by
      book-entry) to each holder a new Note equal in principal amount to any
      unpurchased portion of any Notes surrendered; provided that each new Note will
      be in a principal amount of $1,000 or an integral multiple of
      $1,000.

     

    The
      Company will not be required to make an offer to repurchase the Notes upon
      a
      Change of Control Repurchase Event if a third party makes such an offer in
      the
      manner, at the times and otherwise in compliance with the requirements for
      an
      offer made by the Company and such third party purchases all Notes properly
      tendered and not withdrawn under its offer.

     

    As
      used
      herein:

     

    “below
      investment grade rating event”
means
      the Notes are rated below investment grade by both rating agencies on any date
      from the date of the public notice of an arrangement that could result in a
      Change of Control until the end of the 60-day period following public notice
      of
      the occurrence of a Change of Control (which period shall be extended so long
      as
      the rating of the Notes is under publicly announced consideration for possible
      downgrade by either of the rating agencies); provided,
      that,
      a below
      investment grade rating event otherwise arising by virtue of a particular
      reduction in rating shall not be deemed to have occurred in respect to a
      particular Change of Control (and thus shall not be deemed a below investment
      grade rating event for purposes of the definition of Change of Control
      Repurchase Event hereunder) if the rating agencies making the reduction in
      rating to which this definition would otherwise apply do not announce or
      publicly confirm or inform the Trustee in writing at its request that the
      reduction was the result, in whole or in part, of any event or circumstance
      comprised of or arising as a result of, or in respect of, the applicable Change
      of Control (whether or not the applicable Change of Control shall have occurred
      at the time of the below investment grade rating event).

     

    “Change
      of Control”
means
      the consummation of any transaction (including, without limitation, any merger
      or consolidation) the result of which is that any “person” (as that 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 Company’s voting stock measured by voting
      power rather than number of shares.

     

    “Change
      of Control Repurchase Event”
means
      the occurrence of both a Change of Control and a below investment grade rating
      event.

     

    “investment
      grade”
means
      a
      rating of Baa3 of better by Moody’s (or its equivalent under any successor
      rating categories of Moody’s); a rating of BBB- or better by S&P (or its
      equivalent under any successor rating categories of S&P); and the equivalent
      investment grade credit rating from any additional rating agency or rating
      agencies selected by the Company.

     

    “Moody’s”
means
      Moody’s Investors Service Inc.

     

    “rating
      agency”
means
      (1) each of Moody’s and S&P; and (2) if either of Moody’s or S&P ceases
      to rate the Notes or fails to make a rating of the Notes publicly available
      for
      reasons outside of the Company’s control, a “nationally recognized statistical
      rating organization” within the meaning of Rule 15c3-1(c)(2)(vi)(F) under the
      Exchange Act, selected by the Company (as certified by a resolution of the
      Company’s board of directors) as a replacement agency for Moody’s or S&P, or
      both, as the case may be.

     

    “S&P”
means
      Standard & Poor’s Ratings Services, a division of McGraw-Hill,
      Inc.

     

    “voting
      stock”
of
      any
      specified “person” (as that term is used in Section 13(d)(3) of the Exchange
      Act) as of any date means the capital stock of such person that is at the time
      entitled to vote generally in the election of the board of directors of such
      person.

     

    ARTICLE
      4  

     

    Execution
      Of The Notes

     

    Section
      4.01.  Execution;
      Certificates.
      The
      Notes and any Officers’ Certificate to be delivered under the Indenture in
      connection with the authentication and delivery of the Notes shall be executed
      and delivered as set forth in the Indenture.

     

    ARTICLE
      5  

     

    Miscellaneous

     

    Section
      5.01.  Ratification
      of Indenture.

     

    The
      Indenture, as supplemented by this Supplemental Indenture, is in all respects
      ratified and confirmed, and this Supplemental Indenture shall be deemed part
      of
      the Indenture in the manner and to the extent herein and therein
      provided.

     

    Section
      5.02.  Trustee
      Not Responsible for Recitals.

     

    The
      recitals herein contained are made by the Company and not by the Trustee, and
      the Trustee assumes no responsibility for the correctness thereof. The Trustee
      makes no representation as to the validity or sufficiency of this Supplemental
      Indenture. All of the provisions contained in the Indenture in respect of the
      rights, privileges, immunities, powers, and duties of the Trustee shall be
      applicable in respect of the Supplemental Indenture as fully and with like
      force
      and effect as though fully set forth in full herein.

     

    Section
      5.03.  Governing
      Law.

     

    This
      Supplemental Indenture and the Notes shall be governed by and construed in
      accordance with the laws of the State of New York. 

     

    Section
      5.04.  Separability.

     

    In
      case
      any provision contained in this Supplemental Indenture or in the Notes shall
      for
      any reason be held to be invalid, illegal or unenforceable in any respect,
      such
      invalidity, illegality or unenforceability shall not affect any other provisions
      of this Supplemental Indenture or of the Notes, but this Supplemental Indenture
      and the Notes shall be construed as if such invalid or illegal or unenforceable
      provision had never been contained herein or therein.

     

    Section
      5.05.  Counterparts.

     

    This
      Supplemental Indenture may be executed in any number of counterparts each of
      which shall be an original; but such counterparts shall together constitute
      but
      one and the same instrument.

     

    **********

    
      
        
        

        
        

      

      
        
        

        
          

        

      

      
        
        

        
        

      

    

    

    IN
      WITNESS WHEREOF,
      the
      parties hereto have caused this First Supplemental Indenture to be duly
      executed, and their corporate seals to be hereunto affixed and attested, all
      as
      of the day and year first above written. 

    

    

    
      	 	
              BORGWARNER
                INC.

            
	 	 
	 	
              By:

            	 
	 	 	
              Name:
                

            
	 	 	
              Title:
                

            
	
              [Seal]

            	 
	 	 	 
	
              Attest:

            	 	 	 
	 	
              Name:

            	 	 
	 	
              Title:

            	 	 
	 	 	 
	 	 	 
	 	
              THE
                BANK OF NEW YORK TRUST COMPANY, N.A.

            
	 	 	 
	 	
              By:

            	
               

            
	 	 	
              Name:
                

            
	 	 	
              Title:
                

            
	
              [Seal]

            	 	 
	 	 	 
	
              Attest:

            	 	 	 
	 	
              Name:

            	 	 
	 	
              Title:

            	 	 
	 	 	 

    

    

    

    

    

    

    
      
        

    

    

    

    (Signature
      Page to Supplemental Indenture)

    

    
      
        
        

        
        

      

      
        
        

        
          

        

      

      
        
        

        
        

      

    

    

    EXHIBIT
      A

     

    [FACE
      OF
      NOTE]

     

    CUSIP
      NO.
[__________]

     

    No.
      [__]

     

    BORGWARNER
      INC.

     

    $[___],000,000

     

    [__]%
      Senior Note due November [__],
      2006

     

    UNLESS
      THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY
      TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR
      REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND SUCH CERTIFICATE ISSUED
      IS
      REGISTERED IN THE NAME OF CEDE & CO., OR SUCH OTHER NAME AS REQUESTED BY AN
      AUTHORIZED REPRESENTATIVE OF DTC, 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.

     

    UNLESS
      AND UNTIL THIS CERTIFICATE IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN
      CERTIFICATED FORM, THIS CERTIFICATE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE
      BY
      THE DEPOSITARY TO A NOMINEE THEREOF OR BY A NOMINEE THEREOF TO THE DEPOSITARY
      OR
      ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE
      TO A
      SUCCESSOR OF THE DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR.

     

    

     

    

     

    
      
        
        

        
        

      

      
        
        

        
          

        

      

      
        
        

      

    

    BORGWARNER
      INC., a Delaware corporation (herein referred to as the “Company”,
      which
      term includes any successor corporation under the Indenture hereinafter referred
      to), for value received, hereby promises to pay to Cede & Co., or registered
      assigns, the principal sum of $[_________] on November [__],
      2016
      (the “Maturity
      Date”)
      and to
      pay interest thereon from November [__],
      2006 or
      from the most recent Interest Payment Date to which interest has been paid
      or
      duly provided for, semi-annually on May [__]
      and
      November [__]
      in each
      year (each, an “Interest
      Payment Date”),
      commencing May [__],
      2007,
      at [__]%
      per
      annum until the principal hereof is paid or duly provided for.

     

    Any
      payment of principal or interest required to be made on a day that is not a
      Business Day need not be made on such day, but may be made on the next
      succeeding Business Day with the same force and effect as if made on such day
      and no interest shall accrue as a result of such delayed payment. Interest
      payable on each Interest Payment Date will include interest accrued from and
      including November [__],
      2006 or
      from and including the most recent Interest Payment Date to which interest
      has
      been paid or duly provided for, as the case may be, to but excluding such
      Interest Payment Date.

     

    The
      interest so payable, and punctually paid or duly provided for, on any Interest
      Payment Date will, as provided in the Indenture, be paid to the person (the
      “Holder”)
      in
      whose name this Note (or one or more Predecessor Securities) is registered
      at
      the close of business on the [________]
      and
[________]
      (whether
      or not a Business Day) next preceding such Interest Payment Date (a
“Regular
      Record Date”).
      Any
      such interest not so punctually paid or duly provided for (“Defaulted
      Interest”)
      will
      forthwith cease to be payable to the Holder on such Regular Record Date and
      may
      either be paid to the person in whose name this Note (or one or more Predecessor
      Securities) is registered at the close of business on a special record date
      (the
“Special
      Record Date”)
      for
      the payment of such Defaulted Interest to be fixed by the Trustee (referred
      to
      herein), notice whereof shall be given to the Holder of this Note not less
      than
      ten days prior to such Special Record Date, or may be paid at any time in any
      other lawful manner, all as more fully provided in the Indenture.

     

    For
      purposes of this Note, “Business
      Day”
means
      any day that is not a Saturday or Sunday or legal holiday in New York, New
      York,
      and on which commercial banks are open for business in New York, New
      York.

     

    Payment
      of the principal of this Note on the Maturity Date will be made against
      presentation of this Note at the Trustee’s corporate trust office located at 101
      Barclay Street, Attention: Bond Operations - 7E, New York, New York, in such
      coin or currency of the United States of America as at the time of payment
      is
      legal tender for the payment of public and private debts. So long as this Note
      remains in book-entry form, all payments of principal and interest will be
      made
      by the Company in immediately available funds.

     

    General.
      This
      Note is one of a duly authorized issue of securities (herein called the
“Securities”)
      of the
      Company, issued and to be issued in one or more series under an Indenture,
      dated
      as of September 23, 1999, as supplemented by the First Supplemental Indenture,
      dated as of November [__],
      2006,
      and as it may be supplemented from time to time (herein called the “Indenture”),
      between the Company and The Bank of New York Trust Company, N.A., a national
      banking association (successor in interest to J.P. Morgan Trust Company,
      National Association, formerly known as Chase Manhattan Trust Company, National
      Association), as trustee (herein called the “Trustee,”
which
      term includes any successor trustee under the Indenture with respect to a series
      of which this Note is a part), to which indenture and all indentures
      supplemental thereto, reference is hereby made for a statement of the respective
      rights, limitations of rights, duties and immunities thereunder of the Company,
      the Trustee and the Holders of the Securities, and of the terms upon which
      the
      Securities are, and are to be, authenticated and delivered. This Note is one
      of
      a duly authorized series of Securities designated as “[__]%
      Senior
      Notes due November [__],
      2006”
(collectively, the “Notes”).

     

    Optional
      Redemption.
      This
      Note may be redeemed in whole at any time or in part from time to time, at
      the
      option of the Company, at a redemption price equal to the greater of:

     

    (i)
      100%
      of the principal amount of the Notes to be redeemed, plus accrued and unpaid
      interest thereon to the redemption date, and 

     

    (ii)
      as
      determined by the Independent Investment Banker, the sum of the present values
      of the principal amount of and remaining scheduled payments of interest on
      the
      Notes to be redeemed (not including any portion of payments of interest accrued
      as of the redemption date) discounted to the redemption date on a semi-annual
      basis (assuming a 360-day year consisting of twelve 30-day months) at the
      Treasury Rate plus [___]
      basis
      points, plus accrued interest thereon to the redemption date.

     

    “Comparable
      Treasury Issue”
means
      the United States Treasury security selected by the Independent Investment
      Banker as having a maturity comparable to the remaining term of the Notes to
      be
      redeemed that would be used, 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 Notes.

     

    “Comparable
      Treasury Price”
means,
      with respect to any redemption date, (1) the average of the Reference Treasury
      Dealer Quotations for that redemption date, after excluding the highest and
      lowest of the Reference Treasury Dealer Quotations, or (2) if the Independent
      Investment Banker obtains fewer than three Reference Treasury Dealer Quotations,
      the average of all Reference Treasury Dealer Quotations so
      received.

     

    “Independent
      Investment Banker”
means
      one of the Reference Treasury Dealers appointed by the Company.

     

    “Reference
      Treasury Dealer”
means
      (1) each of Morgan Stanley & Co. Incorporated, Banc of America LLC, Calyon
      Securities (USA) Inc., and J.P. Morgan Securities Inc. and their respective
      successors, unless any of them ceases to be a primary U.S. Government securities
      dealer in New York City (a “Primary
      Treasury Dealer”),
      in
      which case the Company shall substitute another Primary Treasury Dealer, and
      (2)
      any other Primary Treasury Dealer selected by the Company.

     

    “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 Company and the
      Trustee by that Reference Treasury Dealer at 5:00 p.m., New York City time,
      on
      the third Business Day preceding that redemption date.

     

    “Treasury
      Rate”
means,
      with respect to any redemption date, the rate per annum equal to the semiannual
      equivalent yield to maturity of the Comparable Treasury Issue, calculated on
      the
      third Business Day preceding the redemption date, assuming a price for the
      Comparable Treasury Issue (expressed as a percentage of its principal amount)
      equal to the Comparable Treasury Price for that redemption date. 

     

    The
      Company will mail notice of any such redemption at least 30 days but not more
      than 60 days before the redemption date to each Holder of the Notes to be
      redeemed. Unless the Company defaults in payment of the redemption price, on
      and
      after the redemption date, interest will cease to accrue on the Notes or
      portions thereof called for redemption.

     

    Change
      of Control Repurchase Event.
      This
      Note shall be redeemed by the Company upon the occurrence of a Change of Control
      Repurchase Event (as defined in the Indenture) on the terms and conditions
      set
      forth in the Indenture. 

     

    Events
      of Default.
      If an
      Event of Default with respect to the Notes shall have occurred and be
      continuing, the principal of the Notes may be declared due and payable in the
      manner and with the effect provided in the Indenture.

     

    Modification
      and Waivers; Obligations of the Company Absolute.
      The
      Indenture permits, with certain exceptions as therein provided, the amendment
      thereof and the modification of the rights and obligations of the Company and
      the rights of the Holders of the Securities of each series. Such amendment
      may
      be effected under the Indenture at any time by the Company and the Trustee
      with
      the consent of the Holders of not less than a majority in aggregate principal
      amount of all Securities issued under the Indenture at the time Outstanding
      and
      affected thereby. The Indenture also contains provisions permitting the Holders
      of not less than a majority in aggregate principal amount of all outstanding
      Securities affected by certain provisions of the Indenture, on behalf of the
      Holders of all Outstanding Securities, to waive compliance by the Company with
      such provisions. Furthermore, provisions in the Indenture permit the Holders
      of
      not less than a majority in aggregate principal amount of the Outstanding
      Securities of individual series to waive on behalf of all of the Holders of
      Securities of such individual series certain past defaults under the Indenture
      and their consequences. Any such consent or waiver shall be conclusive and
      binding upon the Holder of this Note and upon all future Holders of this Note
      and of any Note issued upon the registration of transfer hereof or in exchange
      hereof or in lieu hereof, whether or not notation of such consent or waiver
      is
      made upon this Note.

     

    No
      reference herein to the Indenture and no provision of this Note or of the
      Indenture shall alter or impair the obligation of the Company, which is absolute
      and unconditional, to pay the principal of and interest on this Note at the
      times, place and rate, and in the coin or currency herein
      prescribed.

     

    Defeasance
      and Covenant Defeasance.
      The
      Indenture contains provisions for defeasance at any time of (a) the entire
      indebtedness of the Company on this Note and (b) certain restrictive covenants
      and the related defaults and Events of Default, upon compliance by the Company
      with certain conditions set forth therein, which provisions apply to this Note.
      

     

    Authorized
      Denominations.
      The
      Notes are issuable only in registered form without coupons in denominations
      of
      $1,000 or any amount in excess thereof which is an integral multiple of
      $1,000.

     

    Registration
      of Transfer or Exchange.
      As
      provided in the Indenture and subject to certain limitations herein and therein
      set forth, the transfer of this Note is registrable in the Security Register
      upon surrender of this Note for registration of transfer at the office or agency
      of the Company in any place where the principal of and interest on this Note
      are
      payable, duly endorsed by, or accompanied by a written instrument of transfer
      in
      form satisfactory to the Company and the Security Registrar duly executed by,
      the Holder hereof or his attorney duly authorized in writing, and thereupon
      one
      or more new Notes, of authorized denominations and for the same aggregate
      principal amount, will be issued to the designated transferee or
      transferees.

     

    As
      provided in the Indenture and subject to certain limitations herein and therein
      set forth, the Notes are exchangeable for a like aggregate principal amount
      of
      Notes of different authorized denominations, as requested by the Holders
      surrendering the same.

     

    This
      Note is a Global Security.
      If the
      Depository is at any time unwilling, unable or ineligible to continue as
      depository and a successor depository is not appointed by the Company within
      90
      days or an Event of Default under the Indenture has occurred and is continuing,
      the Company will issue Securities in certificated form in exchange for each
      Global Security. In addition, the Company may at any time determine not to
      have
      Securities represented by a Global Security and, in such event, will issue
      Securities in certificated form in exchange in whole for the Global Security
      representing such Security. In any such instance, an owner of a beneficial
      interest in a Global Security will be entitled to physical delivery in
      certificated form of Securities equal in principal amount to such beneficial
      interest and to have such Securities registered in its name. Securities so
      issued in certificated form will be issued in denominations of $1,000 or any
      amount in excess thereof which is an integral multiple of $1,000 and will be
      issued in registered form only, without coupons.

     

    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
      other governmental charge payable in connection therewith.

     

    Prior
      to
      due presentment of this Note for registration of transfer, the Company, the
      Trustee and any agent of the Company or the Trustee may treat the Holder as
      the
      owner hereof for all purposes, whether or not this Note be overdue, and neither
      the Company, the Trustee nor any such agent shall be affected by notice to
      the
      contrary.

     

    Defined
      Terms.
      All
      terms used in this Note (except as herein otherwise expressly provided or unless
      the context otherwise requires) which are defined in the Indenture and are
      not
      otherwise defined herein shall have the meanings assigned to them in the
      Indenture.

     

    Governing
      Law.
      This
      Note shall be governed by and construed in accordance with the laws of the
      State
      of New York. 

     

    Unless
      the certificate of authentication hereon has been executed by the Trustee by
      manual signature, this Note shall not be entitled to any benefit under the
      Indenture or be valid or obligatory for any purpose.

     

    

     

    IN
      WITNESS WHEREOF, the Company has caused this instrument to be duly executed
      under its facsimile corporate seal.

     

    
      	
              Dated:
                November ____,
                2006

            	 
	 	 
	
              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 TRUST COMPANY, N.A.,

            	
              BORGWARNER
                INC.

            
	 	
              as
                Trustee

            	 
	 	 	 
	 	 	
              By:                                                 
                

            
	 	 	 
	
              By:
                

            	 	 Attest:  	
               

            
	
              Authorized
                Signatory

            	 Secretary	
               

            
	 	 

    

    

     

    

     

    

     

    OPTION
      TO
      ELECT REPAYMENT

     

    The
      undersigned hereby irrevocably requests and instructs the Company to repay
      this
      Security (or the portion thereof specified below), pursuant to its terms, on
      the
      Optional Repayment Date first occurring after the date of receipt of this
      Security as specified below (the “Repayment
      Date”),
      at a
      Repayment Price equal to 100% of the principal amount thereof, together with
      interest thereon accrued to the Repayment Date, to the undersigned
      at:

     

    ___________________________________________________________________
      

     

    (Please
      Print or Type Name and Address of the Undersigned.)

     

    For
      this
      Option to Elect Repayment to be effective, this Security with the Option to
      Elect Repayment duly completed must be received at least 30 but not more than
      45
      days prior to the Repayment Date (or, if such Repayment Date is not a Business
      Day, the next succeeding Business Day) by the Company at its office or agency
      in
The
      City of New York,
      which
      will be located initially at the office of the Trustee at [101
      Barclay Street, Attention: Bond Operations - 7E], New York, New
      York.

     

    If
      less
      than the entire principal amount of this Security is to be repaid, specify
      the
      portion thereof (which shall be $1,000 or an integral multiple thereof) which
      is
      to be repaid: $ _______.

     

    If
      less
      than the entire principal amount of the within Security is to be repaid, specify
      the denomination(s) of the Security(ies) to be issued for the unpaid amount
      ($1,000 or any integral multiple of $1,000; provided that any remaining
      principal amount of this Security shall not be less than the Minimum
      Denomination): $ _______ .

     

    

     

    Dated:__________

     

    

     

    
      	 	 
	 	
              Note:
                The signature to this Option to Elect Repayment must

            
	 	
              correspond
                with the name as written upon the face of this

            
	 	
              Security
                in every particular without alterations or

            
	 	
              enlargement
                or any change whatsoever.

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