Document:

THIRD AMENDMENT TO
                           REVOLVING CREDIT AGREEMENT

           THIRD AMENDMENT, dated as of October 18, 1999 (the "Amendment"), to
the CREDIT AGREEMENT, dated as of November 30, 1998 among STANDARD MOTOR
PRODUCTS, INC., a New York corporation (the "BORROWER"), the Lenders party
thereto, THE CHASE MANHATTAN BANK, as administrative agent (in such capacity,
the "ADMINISTRATIVE AGENT") for the Lenders and CANADIAN IMPERIAL BANK OF
COMMERCE, as documentation agent (in such capacity, the "DOCUMENTATION AGENT")
for the Lenders.

                              W I T N E S S E T H:

           WHEREAS, the Borrower, the Lenders, the Administrative Agent and the
Documentation Agent are parties to that certain Credit Agreement, dated as of
November 30, 1998, as amended by that certain First Amendment to Revolving
Credit Agreement, dated as of December 8, 1998 and that certain Second Amendment
to Revolving Credit Agreement, dated as of July 16, 1999 (as the same may be
further amended, modified or supplemented from time to time, the "CREDIT
AGREEMENT"); and

           WHEREAS, the Borrower, the Lenders, the Administrative Agent and the
Documentation Agent have agreed to amend the Credit Agreement subject to and
upon the conditions set forth herein;

           NOW, THEREFORE, it is agreed:

           1.        As used herein all terms that are defined in the Credit
                     Agreement shall have the same meanings herein.

           2.        Section 6.04(g) of the Credit Agreement is hereby amended
                     in its entirety to read as follows:

                               "(g) acquisitions of the Capital Stock or assets
                     of other Persons in an amount not in excess of $40,000,000
                     in the aggregate during the period from and after October
                     18, 1999 through the Maturity Date, PROVIDED, that promptly
                     following the execution of definitive purchase
                     documentation regarding any such acquisition the purchase
                     price of which is in excess of $10,000,000, the Borrower
                     shall deliver to the Lenders a brief description and
                     financial overview, in such detail as may be reasonably
                     acceptable to the Lenders, of such acquisition
                     transaction;"

<PAGE>

           3. This Amendment shall not become effective until the date (the
"EFFECTIVE DATE") on which (i) this Amendment shall have been executed by the
Borrower, Lenders representing the Required Lenders and the Administrative
Agent, the Guarantors shall have acknowledged and agreed to the terms hereof,
and the Administrative Agent shall have received evidence satisfactory to it of
such execution and acknowledgment and (ii) the Administrative Agent shall have
received all fees and other amounts due and payable on or prior to the Effective
Date, including, to the extent invoiced, reimbursement or payment of all
out-of-pocket expenses required to be reimbursed or paid by the Borrower under
the Credit Agreement or any other Loan Document.

           4. The Borrower agrees that its obligations set forth in Section 9.03
of the Credit Agreement shall extend to the preparation, execution and delivery
of this Amendment.

           5. This Amendment shall be limited precisely as written and shall not
be deemed (i) to be a consent granted pursuant to, or a waiver or modification
of, any other term or condition of the Credit Agreement or any of the
instruments or agreements referred to therein or (ii) to prejudice any right or
rights which the Administrative Agent, the Documentation Agent or the Lenders
may now have or have in the future under or in connection with the Credit
Agreement or any of the instruments or agreements referred to therein. Whenever
the Credit Agreement is referred to in the Credit Agreement or any of the
instruments, agreements or other documents or papers executed or delivered in
connection therewith, such reference shall be deemed to mean the Credit
Agreement as modified by this Amendment.

           6. This Amendment may be executed in any number of counterparts and
by the different parties hereto in separate counterparts, each of which when so
executed and delivered shall be deemed to be an original and all of which taken
together shall constitute but one and the same instrument.

           7. This Amendment shall in all respects be construed in accordance
with and governed by the laws of the State of New York applicable to contracts
made and to be performed wholly within such State.

                          [SIGNATURE ON FOLLOWING PAGE]

                                        2

<PAGE>

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

                                 STANDARD MOTOR PRODUCTS, INC.

                                 BY:    /S/ DAVID KERNER
                                     ---------------------------
                                        Name:     David Kerner
                                        Title:    Treasurer

                                 THE CHASE MANHATTAN BANK,
                                 Individually and as Administrative Agent

                                 BY:    /S/ JOHN J. MAST
                                     ---------------------------
                                        Name:     John J. Mast
                                        Title:    Vice President

                                 CANADIAN IMPERIAL BANK OF
                                 COMMERCE
                                 Individually and as Administrative Agent

                                 BY:     /S/ W. A. CROUCH
                                     ---------------------------
                                         Name:     W. A. Crough
                                         Title:    Director, Commercial Banking

                                 BANKBOSTON, N.A.

                                 By     /S/ DONALD W. PETERS
                                     ---------------------------
                                        Name: Donald W. Peters
                                        Title: Vice President

<PAGE>

                                   BANK LEUMI USA

                                   BY:  /S/ RISA GOSSET
                                       ------------------------------------
                                        Name:   Risa Gosset
                                        Title:  Assistant Vice President

                                   BY:  /S/  J. P. REFFER
                                       ------------------------------------
                                        Name:   J. P. Reffer
                                        Title:  Senior Vice President

                                   HSBC USA

                                   BY:  /S/ THOMAS DIONIAN
                                       ------------------------------------
                                        Name:   Thomas Dionian
                                        Title:  Vice President

                                   COMERICA BANK

                                   BY:  /S/ ROBERT M. RAMIREZ     10/18/99
                                       ------------------------------------
                                        Name:     Robert M. Ramirez
                                        Title:    Account Officer

                                   FIRST UNION NATIONAL BANK

                                   BY:
                                        -----------------------------------
                                         Name:
                                         Title:

                                   BANCO POPULAR NORTH AMERICA

                                   BY:  -----------------------------------
                                              Name:
                                              Title:

<PAGE>

                          ACKNOWLEDGMENT OF GUARANTORS
                          ----------------------------

           Each of the undersigned hereby acknowledges and agrees to the terms
of, and to the execution, delivery and performance by each of the parties to,
this Amendment, and irrevocably and unconditionally ratifies and confirms that
the Subsidiary Guaranty to which it is a party shall remain in full force and
effect in accordance with its terms.

                                             RENO STANDARD INCORPORATED

                                             BY:    /S/ DAVID KERNER
                                                   ----------------------
                                                    Name:     David Kerner
                                                    Title:    Treasurer

                                             MARDEVCO CREDIT CORP.

                                             BY:    /S/ DAVID KERNER
                                                   ----------------------
                                                    Name:     David Kerner
                                                    Title:    Treasurer

                                             STANRIC, INC.

                                             BY:   /S/ DAVID KERNER
                                                   ----------------------
                                                   Name:     David Kerner
                                                   Title:    Treasurer

                                             INDUSTRIAL & AUTOMOTIVE
                                             ASSOCIATES, INC.

                                             BY:   /S/ DAVID KERNER
                                                   ----------------------
                                                   Name:     David Kerner
                                                   Title:    Treasurer

<PAGE>

                                             MARATHON AUTO PARTS AND
                                             PRODUCTS INC.

                                             BY:   /S/ DAVID KERNER
                                                   ----------------------
                                                   Name:     David Kerner
                                                   Title:    Treasurer

                                             MOTORTRONICS, INC.

                                             BY:    /S/ DAVID KERNER
                                                   ----------------------
                                                    Name:     David Kerner
                                                    Title:    TreasurerFOURTH AMENDMENT TO
                           REVOLVING CREDIT AGREEMENT
                               AND LIMITED WAIVER

           FOURTH AMENDMENT, dated as of March 3, 2000 (the "AMENDMENT"), to the
CREDIT AGREEMENT, dated as of November 30, 1998, among STANDARD MOTOR PRODUCTS,
INC., a New York corporation (the "BORROWER"), the Lenders party thereto, THE
CHASE MANHATTAN BANK, as administrative agent (in such capacity, the
"ADMINISTRATIVE AGENT") for the Lenders and CANADIAN IMPERIAL BANK OF COMMERCE,
as documentation agent (in such capacity, the "DOCUMENTATION AGENT") for the
Lenders.

                             W I T N E S S E T H:

           WHEREAS, the Borrower, the Lenders, the Administrative Agent and the
Documentation Agent are parties to that certain Credit Agreement, dated as of
November 30, 1998, as amended by that certain First Amendment to Revolving
Credit Agreement, dated as of December 8, 1998, that certain Second Amendment to
Revolving Credit Agreement, dated as of July 16, 1999 and that certain Third
Amendment to Revolving Credit Agreement, dated as of October 18, 1999 (as the
same may be further amended, modified or supplemented from time to time, the
"CREDIT AGREEMENT");

           WHEREAS, terms defined in the Credit Agreement shall have their
defined meanings when used herein unless otherwise defined herein; and

           WHEREAS, the Borrower, the Lenders, the Administrative Agent and the
Documentation Agent have agreed to amend the Credit Agreement subject to and
upon the conditions set forth herein;

           NOW, THEREFORE, the parties hereto hereby agree as follows:

SECTION 1.   AMENDMENTS TO CREDIT AGREEMENT.
             ------------------------------

1.1.       (a) Section 1.01 of the Credit  Agreement is hereby amended by
inserting the following new  definitions in the  appropriate alphabetical order:

                   "CLEAN-UP PERIOD" has the meaning assigned to
such term in Section 2.10(b) hereof.

                   "JDEDWARDS ERP CAPITAL LEASE OBLIGATION" means the obligation
of the Borrower under the capital lease agreement entered into in respect of the
financing of the JDEdwards ERP project, which obligation shall not exceed
$4,000,000 in the aggregate.

           (b) Section 1.01 of the Credit Agreement is hereby further amended by
amending and restating, in its entirety, the following definitions:

                   "CONSOLIDATED TANGIBLE NET WORTH" means, at any date of
determination, the sum of all amounts which would be included under
shareholders' equity on a consolidated balance sheet of the Borrower and its
Subsidiaries determined on a consolidated basis in accordance with GAAP as at
such date, PLUS proceeds of a high yield or convertible issue to the extent used
to re-purchase stock of the Borrower through fiscal quarter ended March 31, 2000
in an amount not to exceed $18,000,000, PLUS the amount, up to $8,000,000 in the
aggregate, used to re-purchase stock of the Borrower as permitted by Section
6.06(a)(v) hereof, MINUS all intangible assets of the Borrower and its
Subsidiaries on a consolidated basis as at of such date, including, without
limitation, unamortized debt discount and expense, unamortized deferred charges,
goodwill, customer acquisition costs, patents, trademarks, service marks, trade
names, copyrights and organization or developmental expenses.

                   "INVENTORY TURNOVER RATIO" means, at the end of any fiscal
                    year, the ratio of
                          (i) the cost of goods sold as set forth on the income
                   statement of the Borrower and its Subsidiaries for the fiscal
                   year ending on such date, to (ii) the value of all inventory
                   (determined on a first in first out basis) of the Borrower
                   and its Subsidiaries, determined on a consolidated basis in
                   accordance with GAAP as at such date; provided that in the
                   event the Borrower acquires another entity in accordance with
                   the terms of this Credit Agreement, the cost of goods sold
                   related to the inventory acquired by the Borrower in
                   connection with such acquisition shall be calculated on an
                   annualized basis.

     1.2. Section 2.10(b) is hereby amended in its entirety to read as follows:

                          "(b) During the period from September 1st through
                   December 31st of each calendar year, the Borrower shall (i)
                   repay the aggregate principal amounts of all Revolving Loans
                   so as to reduce, and maintain for a period of 30 consecutive
                   days, the outstanding aggregate Loans at an amount equal to
                   zero dollars ($0.00) (the "CLEAN-UP PERIOD") and (ii) for the
                   30 day period immediately prior to or immediately following
                   the Clean-Up Period, repay the aggregate principal amount of
                   all Revolving Loans so as to reduce the outstanding aggregate
                   Loans during such 30 consecutive day period to an amount not
                   greater than $10,000,000."

     1.3. Section 6.01(e) of the Credit Agreement is hereby amended in its
entirety to read as follows:

                          "(e) Indebtedness of the Borrower or any Subsidiary
                   incurred to finance (x) the acquisition, construction or
                   improvement of any fixed or capital assets, including Capital
                   Lease Obligations (other than the JDEdwards ERP Capital Lease
                   Obligation) and any Indebtedness assumed in connection with
                   the acquisition of any such assets or secured by a Lien on
                   any such assets prior to the acquisition thereof, and
                   extensions, renewals and replacements of any such
                   Indebtedness that do not increase the outstanding principal
                   amount thereof; provided that (i) such Indebtedness is
                   incurred prior to or within 120 days after such acquisition
                   or the completion of such construction or improvement and
                   (ii) the aggregate principal amount of Indebtedness permitted
                   by this clause (e)(x) shall not exceed $3,000,000 at any time
                   outstanding and (y) the JDEdwards ERP Capital Lease
                   Obligation;"

     1.4. Section 6.04(g) of the Credit Agreement is hereby amended in its
entirety to read as follows:

                          "(g) acquisitions of the capital stock or assets of
                   other Persons in an amount not in excess of $25,000,000 in
                   the aggregate during the period from and after October 18,
                   1999 through the Maturity Date, PROVIDED, that promptly
                   following the execution of definitive purchase documentation
                   regarding any such acquisition the purchase price of which is
                   in excess of $10,000,000, the Borrower shall deliver to the
                   Lenders a brief description and financial overview, in such
                   detail as may be reasonably acceptable to the Lenders, of
                   such acquisition transaction;"

     1.5. Section 6.05 of the Credit Agreement is hereby amended by replacing
the dollar amount "$2,000,000" contained therein with "$65,000,000."

     1.6. Section 6.06(a) of the Credit Agreement is hereby amended by (x)
deleting the word "and" after the comma in subsection (iii), (y) deleting the
period at the end of subsection (iv) and substituting in lieu thereof ", and"
and (z) adding the following new subsection (v) immediately after subsection
(iv):

                          "(v) payments in an amount not to exceed $8,000,000 in
                   the aggregate through December 31, 2000 in connection with
                   the re-purchase of the Borrower's capital stock."

     1.7. Section 6.06(b)(iii) of the Credit Agreement is hereby amended in its
entirety to read as follows:

                          "(iii) the pre-payment in full no later than April 15,
                   2000 of the then outstanding principal balance of the
                   $30,000,000 Note Agreement described in item (iii) of the
                   definition of "Note Agreement Indebtedness" which principal
                   balance shall not exceed $14,000,000, together with accrued
                   interest thereon, and a prepayment penalty; and"

                                       3
<PAGE>

     1.8. Section 6.13 of the Credit Agreement is hereby amended by replacing
the chart contained therein with the following:

------------------------------------------------------ -----------------------
FISCAL QUARTER ENDING                                  LEVERAGE RATIO
------------------------------------------------------ -----------------------

December 31, 1999                                      3.50 to 1

March 31, 2000                                         3.75 to 1

June 30, 2000                                          3.75 to 1

September 30, 2000 through Maturity Date               3.50 to 1
------------------------------------------------------ ------------------------

     1.9. Section 6.16 of the Credit Agreement is hereby amended by replacing
the chart contained therein with the following:

------------------------------------------------------ ------------------------
FISCAL QUARTER ENDING                                  INTEREST COVERAGE RATIO
------------------------------------------------------ ------------------------

December 31, 1999                                      3.0 to 1

March 31, 2000                                         3.0 to 1

June 30, 2000                                          3.0 to 1

September 30, 2000                                     3.5 to 1

December 31, 2000 through Maturity Date                3.75 to 1
------------------------------------------------------ ------------------------

     1.10. Section 6.18 of the Credit Agreement is hereby amended by replacing
the chart contained therein with the following:

------------------------------------------------------- ------------------------
FISCAL YEAR ENDING                                      INVENTORY TURNOVER RATIO
------------------------------------------------------- ------------------------

December 31, 1999 through the Maturity Date             2.35 to 1
------------------------------------------------------- ------------------------

     SECTION 2. LIMITED WAIVERS.
                ---------------

     Subject to the terms and provisions of this Amemdment, the Administrative
Agent and the Lenders hereby waive compliance with (i) the provisions of Section
6.15 of the Credit Agreement for the Borrower's fiscal quarter ended March 31,
2000, provided that Consolidated Tangible Net Worth for such fiscal quarter
shall not be less than $146,000,000 and (ii) the provisions of Section 6.18 of
the Credit Agreement for the Borrower's fiscal year ended December 31, 1999.

     SECTION 3. EFFECTIVENESS.
                --------------

     This Amendment shall not become effective until the date (the "EFFECTIVE
DATE") on which (i) this Amendment shall have been executed by the Borrower,
Lenders representing the Required Lenders and the Administrative Agent, the
Guarantors shall have acknowledged and agreed to the

                                       4

<PAGE>

terms hereof, and the Administrative Agent shall have received evidence
satisfactory to it of such execution and acknowledgment and (ii) the
Administrative Agent shall have received by wire transfer of immediately
available funds all fees and other amounts due and payable on or prior to the
Effective Date, including, without limitation, the Amendment Fee referred to in
Section 4.1 hereof and to the extent invoiced, reimbursement or payment of all
out-of-pocket expenses required to be reimbursed or paid by the Borrower under
the Credit Agreement or any other Loan Document.

     SECTION 4. MISCELLANEOUS.
                -------------

     4.1. AMENDMENT FEE. The Borrower agrees to pay on the Effective Date to the
Administrative Agent for the ratable benefit of the Lenders an amendment fee in
the aggregate amount of $110,000 (the "AMENDMENT FEE"). -------------

     4.2. EXPENSES. The Borrower agrees that its obligations set forth in
Section 9.03 of the Credit Agreement shall extend to the preparation, execution
and delivery of this Amendment.

     4.3. REFERENCES. This Amendment shall be limited precisely as written and
shall not be deemed (i) to be a consent granted pursuant to, or a waiver or
modification of, any other term or condition of the Credit Agreement or any of
the instruments or agreements referred to therein, (ii) to prejudice any right
or rights which the Administrative Agent, the Documentation Agent or the Lenders
may now have or have in the future under or in connection with the Credit
Agreement or any of the instruments or agreements referred to therein or (iii)
to create on the part of the Administrative Agent or any Lender any obligation
to renew or extend the waivers contained herein. Whenever the Credit Agreement
is referred to in the Credit Agreement or any of the instruments, agreements or
other documents or papers executed or delivered in connection therewith, such
reference shall be deemed to mean the Credit Agreement as modified by this
Amendment.

     4.4. RATIFICATION. Except as expressly set forth herein, the terms,
provisions and conditions of the Credit Agreement and the other Loan Documents
shall remain in full force and effect and in all other respects are hereby
ratified and confirmed.

     4.5. COUNTERPARTS. This Amendment may be executed in any number of
counterparts and by the different parties hereto in separate counterparts, each
of which when so executed and delivered shall be deemed to be an original and
all of which taken together shall constitute but one and the same instrument.
Delivery of an executed counterpart of a signature page of this Amendment by
facsimile shall be effective as delivery of a manually executed counterpart of
this Amendment.

     4.6. HEADINGS. Section headings in this Amendment are included herein for
convenience of reference only and shall not constitute a part of this Amendment
for any other purpose or be given any substantive effect.

                                       5
<PAGE>

     4.7. GOVERNING LAW. THIS AMENDMENT SHALL IN ALL RESPECTS BE CONSTRUED IN
ACCORDANCE WITH AND GOVERNED BY THE LAWS OF THE STATE OF NEW YORK APPLICABLE TO
CONTRACTS MADE AND TO BE PERFORMED WHOLLY WITHIN SUCH STATE WITHOUT REGARD TO
CONFLICTS OF LAWS PRINCIPLES.

                         [SIGNATURES ON FOLLOWING PAGE]

<PAGE>

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

                                       STANDARD MOTOR PRODUCTS, INC.

                                       BY
                                           ------------------------------
                                           Name:
                                           Title:

                                       THE CHASE MANHATTAN BANK,
                                       Individually and as Administrative Agent

                                       BY
                                           ------------------------------
                                           Name:
                                           Title:

                                       CANADIAN IMPERIAL BANK OF COMMERCE,
                                       Individually and as Documentation Agent

                                       BY
                                          ---------------------------------
                                           Name:
                                           Title:

                                       BANKBOSTON, N.A.

                                       BY
                                          ----------------------------------
                                           Name:
                                           Title:

<PAGE>

                                      BANK LEUMI USA

                                      By
                                          ---------------------------------
                                          Name:
                                          Title:

                                      HSBC USA

                                      By
                                          ---------------------------------
                                          Name:
                                          Title:

                                      COMERICA BANK

                                      By
                                          ---------------------------------
                                          Name:
                                          Title:

                                      FIRST UNION NATIONAL BANK

                                      By
                                          ---------------------------------
                                          Name:
                                          Title:

                                      BANCO POPULAR NORTH AMERICA

                                      By
                                          ---------------------------------
                                          Name:
                                          Title:

<PAGE>

                          ACKNOWLEDGMENT OF GUARANTORS
                          ----------------------------

Each of the undersigned hereby acknowledges and agrees to the terms of, and to
the execution, delivery and performance by each of the parties to, this
Amendment, and irrevocably and unconditionally ratifies and confirms that the
Subsidiary Guaranty to which it is a party shall remain in full force and effect
in accordance with its terms.

                                      RENO STANDARD INCORPORATED

                                      By:
                                          ---------------------------------
                                           Name:
                                           Title:

                                      MARDEVCO CREDIT CORP.

                                      By:
                                          ---------------------------------
                                            Name:
                                            Title:

                                      STANRIC, INC.

                                      By:
                                          ---------------------------------
                                            Name:
                                            Title:

                                      INDUSTRIAL & AUTOMOTIVE
                                      ASSOCIATES, INC.

                                      By:
                                          ---------------------------------
                                            Name:
                                            Title:

<PAGE>

                                      MARATHON AUTO PARTS AND
                                      PRODUCTS, INC.

                                      By:
                                          ---------------------------------
                                             Name:
                                             Title:

                                      MOTORTRONICS, INC.

                                      By:
                                           ---------------------------------
                                             Name:
                                             Title:

                                      EAGLEMOTIVE CORPORATION

                                      By:
                                          ---------------------------------
                                             Name:
                                             Title:

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