Exhibit 10.1

Execution

FOURTH AMENDMENT TO REVOLVING CREDIT
AND TERM LOAN AGREEMENT

     THIS FOURTH AMENDMENT TO REVOLVING CREDIT AND TERM LOAN AGREEMENT (this
“Amendment”) dated as of June 29, 2005, is by and among COMMERCIAL VEHICLE
GROUP, INC., a Delaware corporation (the “Company”), the SUBSIDIARY BORROWERS
parties hereto, the FOREIGN CURRENCY BORROWERS parties hereto, the BANKS parties
hereto, U.S. BANK NATIONAL ASSOCIATION, a national banking association, one of
the Banks, as administrative agent for the Banks (in such capacity, the “Agent”)
and COMERICA BANK, a Michigan banking corporation, one of the Banks, as
syndication agent for the Banks (in such capacity, the “Syndication Agent”).

     WHEREAS, the Company, the Subsidiary Borrowers, the Foreign Currency
Borrowers, certain Banks, the Agent and the Syndication Agent are parties to a
Revolving Credit and Term Loan Agreement dated as of August 10, 2004 as amended
by a First Amendment to Revolving Credit and Term Loan Agreement dated as of
September 16, 2004, by a Second Amendment to Revolving Credit and Term Loan
Agreement and Amendment to Security Agreement dated as of February 7, 2005 and
by a Third Amendment to Revolving Credit and Term Loan Agreement and Amendment
to Security Agreement dated as of June 3, 2005 (as amended, the “Loan
Agreement”);

     WHEREAS, the Company has requested that the Banks consent to the issuance
of certain senior unsecured notes by the Company pursuant to an offering
circular to be dated as of June 29, 2005 and the Banks are willing to consent to
the same on the terms and subject to the conditions set forth in this Amendment;
and

WHEREAS, the parties desire to amend certain other provisions of the Loan
Agreement;

     NOW, THEREFORE, for value received, the receipt and sufficiency of which
are hereby acknowledged, the parties hereto agree as follows:

     1. Certain Defined Terms. Each capitalized term used herein without being
defined herein that is defined in the Loan Agreement shall have the meaning
given to it therein.

     2. Amendments to Loan Agreement. The Loan Agreement is hereby amended as
follows:

     (a) The following definitions of “Offering Circular”, “Senior Unsecured
Notes” and “Senior Unsecured Note Offering” are added to Section 1.1 of the Loan
Agreement in appropriate alphabetical order:

     “Offering Circular”: That certain Offering Circular dated as of June 29,
2005 describing the Senior Unsecured Note Offering.

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     “Senior Unsecured Notes”: Those certain senior unsecured notes to be
offered for sale by the company pursuant to the Offering Circular in the
aggregate original principal amount of up to $150,000,000.

     “Senior Unsecured Note Offering”: The offering of the Senior Unsecured
Notes for sale to certain qualified institutional investors pursuant to the
Offering Circular.

     (b) Section 2.7 (b) of the Loan Agreement is hereby amended in its entirety
to read as follows:

         2.7 (b) The unpaid principal balance of the Term Loans shall be payable
on the last day of each calendar quarter as follows (provided that on or about
July 6, 2005 the Net Issuance Proceeds of the Senior Unsecured Note Offering
shall be paid in reduction of the Term Loans in such an amount that the
aggregate outstanding balance of the Term Loans and the Term Loans (Foreign
Currency) does not exceed $40,000,000):

     
June 30, 2005
  $3,530,207.75  
from September 30, 2005 through
December 31, 2005
  $   795,980.00  
from March 31, 2006 through
December 31, 2006
  $   950,040.00  
from March 31, 2007 through
December 31, 2007
  $1,129,778.00  
from March 31, 2008 through
December 31, 2008
  $1,335,192.00  
from March 31, 2009 through
December 31, 2009
  $1,540,606.00  
from March 31, 2010 through
September 30, 2010
  $1,694,667.00  
and on the Term Loan Termination
Date
  All unpaid principal plus accrued and unpaid interest

     (c) Section 2.8 of the Loan Agreement is amended by adding the following
Section 2.8(i) at the end thereof:

                   (i) Net Issuance Proceeds of Senior Unsecured Note Offering.
The Net Issuance Proceeds of the Senior Unsecured Note Offering shall be paid to
the Agent for the account of the Banks for application first to the Term Loans
to reduce the outstanding principal balance thereof to an amount that when added
to the outstanding principal balance of the Term

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Loans (Foreign Currency) does not exceed $40,000,000 in the aggregate, to be
applied ratably in reduction of each of the remaining scheduled principal
payments on the applicable Term Loans and then to Prime Rate Advances under the
Revolving Loans and finally to Eurocurrency Rate Advances under the Revolving
Loans in order starting with the Eurocurrency Rate Advances having the shortest
time to the end of the applicable Interest Period; provided, however, that there
shall not be any corresponding reduction in the Revolving Commitment as a result
of such mandatory prepayment. To the extent any portion of such prepayment would
be applied to outstanding Eurocurrency Rate Advances and no Default or Event of
Default has occurred and is continuing, such portion shall be deposited in the
Holding Account and withdrawn for application to such Eurocurrency Rate Advances
at the end of the then-current Interest Periods applicable thereto (or earlier,
upon and at any time during the continuance of a Default or an Event of
Default).

     (d) Section 5.12(c) is deleted from the Loan Agreement.

     (e) Section 6.5 of the Loan Agreement is amended by adding the following
Section 6.5(q) at the end thereof:

                   (q) the Senior Unsecured Notes.

     (f) The second sentence of Section 6.16 of the Loan Agreement is amended to
add the following phrase at the beginning thereof:

     “Except to the extent Liens on the assets of the Borrower and its
Subsidiaries are otherwise limited as described in the Offering Circular with
respect to Liens other than those arising to secure the Obligations under this
Agreement,”

     3. Conditions to Effectiveness of this Amendment. This Amendment shall be
effective as of June 29, 2005 (the “Effective Date”), provided the Agent shall
have received sufficient counterparts of this Amendment as required by the
Agent, duly executed by the Borrowers and all of the Banks, and the following
conditions are satisfied or waived:

     (a) Before and after giving effect to this Amendment, the representations
and warranties of the Borrowers in Article IV of the Loan Agreement and
Section 7 of the Security Agreement shall be true and correct in all material
respects as though made on the date hereof, except to the extent such
representations and warranties by their terms are made as of a specific date and
except for changes that are permitted by the terms of the Loan Agreement.

     (b) After giving effect to this Amendment, no Event of Default and no
Default shall have occurred and be continuing.

     (c) No Material Adverse Effect shall have occurred since June 3, 2005.

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     (d) No revisions shall have been made to the articles of incorporation or
bylaws of any of the Borrowers since June 3, 2005, except as provided to the
Agent under (e) (ii) below.

     (e) The Agent shall have received the following or shall receive the
following substantially simultaneously with the execution and delivery of this
Amendment, each duly executed or certified, as the case may be, and dated as of
the date of delivery thereof:

         (i) an officer’s certificate from the Company and each Subsidiary
Borrower and, as applicable, Foreign Currency Borrower certifying resolutions of
the board of directors, managers or member of each such Borrower authorizing
(A) this Amendment, the execution, delivery and performance of this Amendment
and all documents contemplated hereunder, (B) the sale of the Senior Unsecured
Notes, the execution, delivery and performance of all documents related thereto,
including any such guaranties, and all documents contemplated hereunder and
thereunder, and certifying the designation of Authorized Officers to execute the
Loan Agreement, Loan Documents and amendments thereto as well as the documents
contemplated under the Senior Unsecured Note Offering;

         (ii) such other documents, instruments and approvals as the Agent may
reasonably request, including, without limitation, certified copies of the
Articles or Certificate of Incorporation or Organization and bylaws or operating
agreement of any Subsidiary Borrower which has amended or modified any of such
documents since June 3, 2005.

     4. Post Closing Matters. The Borrower shall pay to the Agent on behalf of
the Banks the Net Issuance Proceeds of the Senior Unsecured Note Offering on or
about July 6, 2005. Failure to so pay such Net Issuance Proceeds to the Agent by
close of business on July 12, 2005 shall be an Event of Default under the Loan
Agreement.

     5. Landlord Waivers. The date “August 1, 2005” set out in Section 6 of the
Third Amendment to Revolving Credit and Term Loan Agreement and Amendment to
Security Agreement between the Borrowers and the Banks, dated as of June 3,
2005, is amended to read “September 1, 2005”.

     6. Acknowledgments. The Borrowers and the Banks acknowledge that, as
amended hereby, the Loan Agreement remains in full force and effect with respect
to the Borrowers and the Banks, and that each reference to the Loan Agreement in
the Loan Documents shall refer to the Loan Agreement, as amended hereby. The
Borrowers confirm and acknowledge that they will continue to comply with the
covenants set out in the Loan Agreement and the other Loan Documents, as amended
hereby, and that their representations and warranties set out in the Loan
Agreement and the other Loan Documents, as amended hereby, are true and correct
in all material respects as of the date of this Amendment, except to the extent
such representations and warranties by their terms are made as of a specific
date and except for changes that are permitted by the terms of the Loan
Agreement. The Borrowers represent and warrant that (i) the execution, delivery
and performance of this Amendment and is within their

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corporate powers and have been duly authorized by all necessary corporate
action; (ii) this Amendment has been duly executed and delivered by the
Borrowers and constitute the legal, valid and binding obligations of the
Borrowers, enforceable against the Borrowers in accordance with their terms
(subject to limitations as to enforceability which might result from bankruptcy,
insolvency, or other similar laws affecting creditors’ rights generally and
general principles of equity); and (iii) no Events of Default or Default exist
and are continuing.

     7. Waiver. Pursuant to the provisions of Section 5.13 of the Loan Agreement
the Company agreed to provide a copy of the Management Agreement to the Agent
promptly after execution thereof. The Borrower has now provided such copy to the
Agent, but it was not provided promptly after execution. Such failure to provide
a copy of the Management Promptly is an Event of Default under the Loan
Agreement. The Banks hereby waive the Event of Default for failure to promptly
provide a copy of the Management Agreement to the Agent. This waiver is limited
to the express terms hereof and does not extend to any other Default or Event of
Default. This waiver is not, and shall not be deemed a course of dealing or
performance upon which the Borrowers may rely with respect to any Default, Event
of Default or request for a waiver and the Borrowers hereby waive any such
claim.

     8. General.

     (a) The Company agrees to reimburse the Agent and the Syndication Agent
within 10 days of demand for all reasonable out-of-pocket expenses paid or
incurred by the Agent and the Syndication Agent including filing and recording
costs and fees and expenses of outside counsel to the Agent and outside counsel
to the Syndication Agent (determined on the basis of such counsels’ generally
applicable rates, which may be higher than the rates such counsel charges the
Agent or the Syndication Agent in certain matters) in the preparation,
negotiation and execution of this Amendment and any documents related thereto
(collectively, the “Amendment Documents”), and to pay and save the Banks
harmless from all liability for any stamp or other taxes which may be payable
with respect to the execution or delivery of this Amendment and the Amendment
Documents, which obligations of the Company shall survive any termination of the
Loan Agreement.

     (b) This Amendment may be executed in as many counterparts (including via
facsimile or electronic transmission) as may be deemed necessary or convenient,
and by the different parties hereto on separate counterparts, each of which,
when so executed, shall be deemed an original but all such counterparts shall
constitute but one and the same instrument.

     (c) Any provision of this Amendment which is prohibited or unenforceable in
any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of
such prohibition or unenforceability without invalidating the remaining portions
hereof or affecting the validity or enforceability of such provisions in any
other jurisdiction.

     (d) The validity, construction and enforceability of this Amendment and the
New Notes shall be governed by the internal laws of the State of New York,
without

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giving effect to conflict of laws principles thereof, but giving effect to
federal laws of the United States applicable to national banks.

     (e) This Amendment and the Amendment Documents shall be binding upon the
Borrowers, the Banks, the Agent, the Syndication Agent and their respective
permitted successors and assigns, and shall inure to the benefit of the
Borrowers, the Banks, the Agent, the Syndication Agent and the successors and
permitted assigns of the Banks, the Agent and the Syndication Agent.

[remainder of page intentionally left blank]

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     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
executed as of the day and year first above written.

            COMMERCIAL VEHICLE GROUP, INC.
      By:   /s/ Chad M. Utrup               Title:   Chief Financial Officer    
                 

Address:
6530 Campus Way
New Albany, Ohio 43054
Fax: (614) 289-5371
Attention: Jeff Vogel

            SPRAGUE DEVICES, INC.
(formerly COMMERCIAL VEHICLE SYSTEMS, INC.)
      By:   /s/ Chad M. Utrup               Title:   Chief Financial Officer    
                 

            NATIONAL SEATING COMPANY
      By:   /s/ Chad M. Utrup         Title:   Chief Financial Officer          
           

            TRIM SYSTEMS OPERATING CORP.
      By:   /s/ Chad M. Utrup             Title:   Chief Financial Officer      
               

            CVS HOLDINGS, INC.
      By:   /s/ Chad M. Utrup         Title:   Chief Financial Officer          
         

[Signature Page to Fourth Amendment]

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            TRIM SYSTEMS, INC.
      By:   /s/ Chad M. Utrup         Title:   Chief Financial Officer          
           

            MAYFLOWER VEHICLE SYSTEMS, LLC
      By:   /s/ Chad M. Utrup               Title:   Treasurer                  
   

            CVG MANAGEMENT CORPORATION
      By:   /s/ Chad M. Utrup             By:   Chief Financial Officer        
             

            MONONA CORPORATION
      By:   /s/ Chad M. Utrup               Title:   Vice President          

            MONONA WIRE CORPORATION
      By:   /s/ Chad M. Utrup               Title:   Vice President            
         

            MONONA (MEXICO) HOLDINGS, LLC
      By:   /s/ Chad M. Utrup               Title:   Vice President            
       

[Signature Page to Fourth Amendment]

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            FOREIGN CURRENCY BORROWERS:

COMMERCIAL VEHICLE SYSTEMS LIMITED
      By:   /s/ Chad M. Utrup             Title:   Director                    
 

            KAB SEATING LIMITED
      By:   /s/ Chad M. Utrup               Title:   Director                  
   

            BOSTROM LIMITED
      By:   /s/ Chad M. Utrup           Title:   Director                      

            BOSTROM INTERNATIONAL LIMITED
      By:   /s/ Chad M. Utrup             Title:   Director                    
 

            CVS HOLDINGS LIMITED
      By:   /s/ Chad M. Utrup             Title:   Director                    
 

         

[Signature Page to Fourth Amendment]

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            U.S. BANK NATIONAL ASSOCIATION
      By:   /s/ Robert A. Rosati               Title:   Senior Vice President  
            In its individual corporate capacity and as Agent
Address:
800 Nicollet Mall
Minneapolis, MN 55402
Fax: 612-303-2258
Attention: Robert A. Rosati   

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            COMERICA BANK
      Title:   /s/ Matthew T. Breight             By:   Vice President          
    Address:
Comerica Tower
500 Woodward Avenue
Detroit, Michigan 48226
Fax: 313-222-3389
Attention: Matthew T. Breight   

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            ASSOCIATED BANK, N.A.
      By:   /s/ Daniel Holzhauer               Title:   Assistant Vice President
              Address:
401 E. Kilbourn Avenue
Suite 400
Milwaukee, WI 53202
Fax: 414-283-2300
Attention: Daniel Holzhauer
E-mail: Daniel.holzhauer@associatedbank.com   

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            CITIZENS BANK OF PENNSYLVANIA
      By:   /s/ John J. Ligday Jr.               Title:   Vice President        
      Address:
525 William Penn Place
Room 2910
Pittsburgh, PA 15219-1729
Fax: 412-552-6307
Attention: John J. Ligday Jr.
E-mail: john.ligday@citzensbank.com   

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            NATIONAL CITY BANK OF THE MIDWEST
      By:   /s/ Oliver Glenn               Title:   Vice President              
Address:
1001 S. Worth; Locator R-J40-4D
Birmingham, Michigan 48009
Fax: 248-901-2097 Attention: Oliver Glenn
E-mail: oliver.glenn@nationalcity.com   

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            SUNTRUST BANK
      By:   /s/ William C. Humphries               Title:   Managing Director  
                      Address:
303 Peachtree Street
10th Floor, MC 1928
Atlanta, GA 30308
Fax: 404-658-5989
Attention: William Humphries, Managing Director
E-mail: William.Humphries@suntrust.com
                     

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            PNC BANK, NATIONAL ASSOCIATION
      By:   /s/ Jeffrey Stein               Title:   Vice President            
  Address:
201 East Fifth Street
Cincinnati, OH 45202
Fax: 513-651-8951
Attention: Jeff Stein
E-Mail: jeffrey.stein@pncbank.com   

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            KEYBANK NATIONAL ASSOCIATION
      By:   /s/ Roger D. Campbell               Title:   Senior Vice President  
            Address:
88 East Broad Street, 2nd Floor
Columbus, Ohio 43215
Fax: 614-460-3469
Attention: Roger D. Campbell
e-mail: Roger_campbell@keybank.com   

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            LASALLE BANK NATIONAL ASSOCIATION
      By:   /s/ Steven P. Shepard               Title:   Senior Vice President  
            Address:
LaSalle Bank N.A.
One Columbus
10 W. Broad St., Suite 2250
Columbus, OH 43215-3418
Attention: Steven P. Shepard, Senior V.P.
Fax: 614-225-1631  

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            CREDIT SUISSE, Cayman Islands Branch
(formerly known as CREDIT SUISSE FIRST
BOSTON, acting through its Cayman Island
Branch)
      By:   /s/ James Moran               Title:   Managing Director            
          By:   /s/ Doreen Barr               Title:   Associate              
Address:
Eleven Madison Avenue
New York, New York 10010
Fax: 212-538-6851
Attention: Edward Markowski
e-mail: Edward.markowski@csfb.com     

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