Fel-Pro 35763 Engine Coolant Thermostat O-Ring

Fel-Pro 35763 Thermostat O-Ring Seal

Fel-Pro 35763 is a premium engine coolant thermostat O-ring built for direct sealing performance in a wide range of import and domestic applications. It is a thermostat housing cover seal with a 60 mm inside diameter, made to support reliable coolant sealing where the thermostat housing meets the engine cooling system.

• Premium-grade thermostat housing cover seal
• 60 mm inside diameter for listed applications
• Application-specific sealing material from Fel-Pro
• Engine coolant thermostat O-ring for cooling system service
• Cross-references MAHLE C32280 and C32353 for the same application

Application Coverage

Compatible With 2011 Ford Ranger, N/A. Fits 2001-2005 Audi Allroad Quattro, N/A. Fits 1998-2005 Volkswagen Passat, N/A. Fits 1998-2004 Audi A6 Quattro, N/A. Fits 2000-2002 Audi S4, N/A. Fits 1999-2002 Volkswagen Golf, N/A. Fits 1999-2002 Volkswagen Jetta, N/A. Fits 1997-2001 Audi A4, N/A. Fits 1998-2001 Audi A4 Quattro, N/A. Fits 1998-2001 Audi A6, N/A. Fits 2000 BMW 323Ci, N/A. Fits 1998-2000 BMW 323i, N/A. Fits 2000 BMW 328Ci, N/A. Fits 1996-2000 BMW 328i, N/A. Fits 1997-2000 BMW 528i, N/A. Fits 1997-2000 BMW Z3, N/A. Fits 1998-1999 BMW 323is, N/A. Fits 1996-1999 BMW 328is, N/A. Fits 1992-1995 BMW 325i, N/A. Fits 1992-1995 BMW 325is, N/A. Fits 1991-1995 BMW 525i, N/A. Fits 1987-1993 BMW 325i, N/A. Fits 1993 BMW 525iT, N/A. Fits 1991-1992 Audi 80, N/A. Fits 1988-1992 Audi 80 Quattro, N/A. Fits 1988-1992 Audi 90 Quattro, N/A. Fits 1989-1991 Audi 100, N/A. Fits 1989-1991 Audi 100 Quattro, N/A. Fits 1989-1991 Audi 200, N/A. Fits 1989-1991 Audi 200 Quattro, N/A. Fits 1988-1991 Audi 90, N/A. Fits 1990-1991 Audi Coupe Quattro, N/A. Fits 1987-1991 BMW 325is, N/A. Fits 1988-1991 BMW 325iX, N/A. Fits 1983-1991 Volkswagen Vanagon, N/A. Fits 1989-1990 BMW 525i, N/A. Fits 1986-1988 Audi 5000 Quattro, N/A. Fits 1982-1988 BMW 528e, N/A. Fits 1983-1988 Volkswagen Quantum, N/A. Fits 1984-1987 Audi 4000 Quattro, N/A. Fits 1981-1987 Audi Coupe, N/A. Fits 1984-1987 BMW 325e, N/A. Fits 1986-1987 BMW 325es, N/A. Fits 1980-1986 Audi 4000, N/A. Fits 1983-1986 Audi Quattro, N/A. Fits 1985-1986 BMW 524td, N/A. Fits 1984-1985 Lincoln Continental, N/A. Fits 1984-1985 Lincoln Mark VII, N/A.

What It Helps Repair

• Coolant seepage at the thermostat housing cover
• Sealing issues after thermostat service
• Leaks caused by a worn or flattened O-ring
• Cooling system maintenance on Audi, BMW, Volkswagen, and Ford applications
• Fitment concerns when replacing a thermostat housing cover seal with the correct 60 mm ID part

Installation Notes

Verify the thermostat housing style and inside diameter before installation. Clean the sealing surfaces thoroughly, inspect the housing for damage, and confirm the replacement seal matches the listed application. For search relevance, this Fel-Pro 35763 thermostat O-ring is commonly selected for Audi A4, BMW 325i, and Volkswagen Passat cooling system repairs.

Quality Assurance

Fel-Pro gaskets are built around application-specific sealing materials and vehicle-focused coverage to deliver dependable sealing performance in professional repair work. The Fel-Pro 35763 follows that approach as a premium thermostat housing cover seal for the listed vehicles.