================================================================================ FOURTH SUPPLEMENTAL INDENTURE to INDENTURE dated as of June 29, 1998 among FEDERAL-MOGUL CORPORATION as Issuer, THE GUARANTORS PARTY HERETO FROM TIME TO TIME as Guarantors and THE BANK OF NEW YORK as Trustee Dated as of December 29, 2000 ================================================================================ FOURTH SUPPLEMENTAL INDENTURE, dated as of December 29, 2000 among Federal-Mogul Corporation, a Michigan corporation, as issuer (the "Company"), the companies listed on the signature pages of the Third Supplemental Indenture (as hereinafter defined) that are subsidiaries of the Company (the "Existing Guarantors"), AE Goetze FB Inc., Brake Acquisition Inc., Federal-Mogul Aftermarket of Canada Inc., Federal-Mogul Camshafts, Inc., Federal-Mogul Carolina, Inc., Federal-Mogul Engineered Bearings, Inc., Federal-Mogul Flowery Branch, L.L.C., Federal-Mogul LaGrange, Inc., Federal-Mogul Piston Rings, Inc., Federal-Mogul Powertrain, Inc., Federal-Mogul RPB, Inc., Federal-Mogul Sealing Systems, Inc., Federal-Mogul Sintered Products - Waupun, Inc., Federal-Mogul Sintered Products, Inc., Federal-Mogul South Bend, Inc., Federal-Mogul Systems Protection Group, Inc., Federal-Mogul Technology, Inc., Ferodo America, Inc., Ferodo Technical Center Inc., McCord Sealing, Inc., T&N Industries Inc. and Weyburn Acquisition Corporation, each a direct or indirect wholly-owned subsidiary of the Company (the "New Guarantors"), and The Bank of New York, a New York banking corporation, as trustee (the "Trustee"). RECITALS An Indenture (as such may be amended, supplemented or modified from time to time, the "Indenture") dated as of June 29, 1998, has been duly executed and delivered by the Company and the companies listed on the signature pages thereto that are subsidiaries of the Company (the "Original Guarantors"), providing for the issuance from time to time of the Company's unsecured debentures, notes or other evidences of indebtedness ("Securities") to be issued in one or more series. The Company and the Original Guarantors have duly executed and delivered a First Supplemental Indenture dated as of June 30, 1998 (the "First Supplemental Indenture"), providing for the issuance of three separate series of Securities designated as the Company's 7 1/2% Notes due July 1, 2004 (the "7 1/2% Notes"), 7 3/4% Notes due July 1, 2006 (the "7 3/4% Notes") and 7 7/8% Notes due July 1, 2010 (the "7 7/8% Notes," together with the 7 1/2% Notes and the 7 3/4% Notes, the "Notes"), respectively, in the aggregate principal amount of $250,000,000 in the case of the 7 1/2% Notes, $400,000,000 in the case of the 7 3/4% Notes, and $350,000,000 in the case of the 7 7/8% Notes, each series guaranteed by each of the Original Guarantors, on the terms set forth therein. The Company, the Original Guarantors and F-M UK Holding Limited ("F-M UK Holding") have duly executed and delivered a Second Supplemental Indenture dated as of [July 21], 1998 (the "Second Supplemental Indenture"), providing for the guarantee of each of the aforementioned series of Securities by F-M UK Holding, on the terms set forth therein. The Company, the Original Guarantors, F-M UK Holding and the Additional Guarantors (as defined in the Third Supplemental Indenture) (the "Additional Guarantors" and, together with the Original Guarantors, F-M UK Holding and the New Guarantors, the "Guarantors") have duly executed and delivered a Third Supplemental Indenture dated as of October 9, 1998 (the "Third Supplemental Indenture"), providing for the guarantee of the aforementioned series of Securities by the Additional Guarantors, on the terms set forth therein. 2 The New Guarantors desire to guarantee each of the aforementioned series of Securities and each additional series hereafter issued pursuant to the Indenture, such guarantee to be on the terms set forth herein. Section 8.1 of the Indenture provides that the Company, the Guarantors and the Trustee may at any time and from time to time enter into one or more indentures supplemental to the Indenture to subject each such subsidiary of the Company that becomes a guarantor under the Senior Credit Agreement (or any other credit agreement renewing, refunding, replacing, restating, refinancing or extending the Senior Credit Agreement), to the provisions of the Indenture as a Guarantor as permitted by Section 12.6 of the Indenture. All things necessary to make this Fourth Supplemental Indenture a valid agreement of the Company, the Guarantors and the Trustee, in accordance with its terms, have been done. For and in consideration of the premises and the purchase of the Securities by the Holders thereof, it is mutually covenanted and agreed as follows for the equal and ratable benefit of the Holders of the Securities: ARTICLE 1 DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION Section 1.1. Definitions. For all purposes of this Fourth ----------- Supplemental Indenture, capitalized terms used herein without definition shall have the meanings specified in the Indenture. Section 1.2. Headings. The Article and Section headings herein are -------- for convenience only and shall not affect the construction hereof. Section 1.3. Successors and Assigns. This Fourth Supplemental ---------------------- Indenture shall be binding upon the Company and the Guarantors and their respective successors and assigns and shall inure to the benefit of the Trustee and the Holders and, in the event of any transfer or assignment of rights by any Holder or the Trustee, the rights and privileges conferred upon that party in the Indenture and this Fourth Supplemental Indenture and in the Securities shall automatically extend to and be vested in such transferee or assignee, all subject to the conditions of the Indenture. This Fourth Supplemental Indenture shall be binding upon the Trustee and its successors and assigns. Section 1.4. Ratification of Indenture; Supplemental Indentures -------------------------------------------------- Part of Indenture. Except as expressly amended hereby, the Indenture is in all - - ----------------- respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Fourth Supplemental Indenture shall form a part of the Indenture for all purposes, and every Holder of Securities heretofore or hereafter authenticated and delivered shall be bound hereby. 3 Section 1.5. Governing Law. THIS FOURTH SUPPLEMENTAL INDENTURE AND ------------- THE GUARANTEE SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. Section 1.6. Counterparts. This Fourth Supplemental Indenture may ------------ be executed in any number of counterparts and by telecopier, each of which shall be an original, but such counterparts shall together constitute but one and the same instrument. ARTICLE 2 SCOPE AND TERMS OF THIS FOURTH SUPPLEMENTAL INDENTURE Section 2.1. Scope. The changes, modifications and supplements to ----- the Indenture effected by this Fourth Supplemental Indenture shall be applicable with respect to, and govern the terms of, the Securities heretofore and hereafter issued pursuant to the Indenture. Section 2.2. Additional Guarantors. Subject to the provisions of --------------------- Article 12 of the Indenture (including provisions for the release of a Guarantor), the New Guarantors shall be subject to the provisions of the Indenture as Guarantors of the Securities. 4 IN WITNESS WHEREOF, the parties hereto have caused this Fourth Supplemental Indenture to be duly executed as of the day and year first above written. FEDERAL-MOGUL CORPORATION by:______________________________ Name: Title: FEDERAL-MOGUL DUTCH HOLDINGS INC., as Guarantor by:______________________________ Name: Title: FEDERAL-MOGUL GLOBAL INC., as Guarantor by:______________________________ Name: Title: FEDERAL-MOGUL U.K. HOLDINGS INC., as Guarantor by:______________________________ Name: Title: CARTER AUTOMOTIVE COMPANY, INC., as Guarantor by:______________________________ Name: Title: 5 FEDERAL MOGUL VENTURE CORPORATION, as Guarantor by:______________________________ Name: Title: FEDERAL-MOGUL WORLD WIDE, INC., as Guarantor by:______________________________ Name: Title: FEDERAL-MOGUL GLOBAL PROPERTIES, INC., as Guarantor by:______________________________ Name: Title: FELT PRODUCTS MFG. CO., as Guarantor by:______________________________ Name: Title: F-M UK HOLDING LIMITED, as Guarantor by:______________________________ Name: Title: by:_____________________________ Name: Title: 6 FEDERAL-MOGUL IGNITION COMPANY (formerly Champion Spark Plug Company), as Guarantor by: ___________________________________ Name: Title: FEDERAL-MOGUL PRODUCTS, INC. (formerly Moog Automotive Products, Inc.), as Guarantor by:___________________________________ Name: Title: FEDERAL-MOGUL AVIATION, INC. (formerly Champion Aviation, Inc.), as Guarantor by:___________________________________ Name: Title: AE GOETZE FB INC., as Guarantor by:__________________________________ Name: Title: 7 BRAKE ACQUISITION INC., as Guarantor by:_______________________________ Name: Title: FEDERAL-MOGUL AFTERMARKET OF CANADA INC., as Guarantor by:_______________________________ Name: Title: FEDERAL-MOGUL CAMSHAFTS, INC., as Guarantor by:_______________________________ Name: Title: FEDERAL-MOGUL CAROLINA, INC., as Guarantor by:_______________________________ Name: Title: FEDERAL-MOGUL ENGINEERED BEARINGS, INC., as Guarantor by:_______________________________ Name: Title: 8 FEDERAL-MOGUL FLOWERY BRANCH, L.L.C., as Guarantor by:_______________________________ Name: Title: FEDERAL-MOGUL LAGRANGE, INC., as Guarantor by:_______________________________ Name: Title: FEDERAL-MOGUL PISTON RINGS, INC., as Guarantor by:_______________________________ Name: Title: FEDERAL-MOGUL POWERTRAIN, INC., as Guarantor by:_______________________________ Name: Title: FEDERAL-MOGUL RPB, INC., as Guarantor by:_______________________________ Name: Title: 9 FEDERAL-MOGUL SEALING SYSTEMS, INC., as Guarantor by:______________________________________ Name: Title: FEDERAL-MOGUL SINTERED PRODUCTS- WAUPUN, INC., as Guarantor by:______________________________________ Name: Title: FEDERAL-MOGUL SINTERED PRODUCTS, INC., as Guarantor by:______________________________________ Name: Title: FEDERAL-MOGUL SOUTH BEND, INC., as Guarantor by:______________________________________ Name: Title: FEDERAL-MOGUL SYSTEMS PROTECTION GROUP, INC., as Guarantor by:______________________________________ Name: Title: 10 FEDERAL-MOGUL TECHNOLOGY, INC., as Guarantor by:_______________________________________ Name: Title: FERODO AMERICA, INC., as Guarantor by:______________________________________ Name: Title: FERODO TECHNICAL CENTER INC., as Guarantor by:_______________________________________ Name: Title: MCCORD SEALING, INC., as Guarantor by:______________________________________ Name: Title: T&N INDUSTRIES INC., as Guarantor by:______________________________________ Name: Title: 11 WEYBURN ACQUISITION CORPORATION, as Guarantor by:______________________________________ Name: Title: 12 THE BANK OF NEW YORK, as Trustee by:_______________________________________ Name: Title: 13