Fel-Pro 35632 Engine Coolant Thermostat O-Ring

Fel-Pro 35632 Engine Coolant Thermostat O-Ring

Fel-Pro 35632 is a premium engine coolant thermostat O-ring built for vehicle-specific sealing applications. It is made to deliver 100% vehicle sealing with application-specific materials, helping maintain a dependable coolant seal in service.

Key Features

• Premium-grade thermostat O-ring for cooling system sealing
• Application-specific material selection for a precise fit
• Engineered for 100% vehicle sealing performance
• Direct replacement for select GM, Chevrolet, GMC, Hummer, Saab, Isuzu, Buick, Cadillac, Oldsmobile, and Pontiac applications
• Cross-references Dayco 72141 and MAHLE C31756 for the same application

Detailed Description

This Fel-Pro thermostat O-ring is used in engine cooling system service where a reliable seal is needed at the thermostat housing. The Fel-Pro 35632 part number is listed for a wide range of vehicles, including 1997-2003 Chevrolet Corvette, 1999-2003 Chevrolet Silverado 1500, 2000-2003 GMC Yukon, and 2004-2012 Chevrolet Colorado. It also covers additional applications such as Chevrolet Trailblazer, GMC Canyon, Hummer H3, Saab 9-7x, and Pontiac Firebird.

Fel-Pro focuses on sealing solutions with materials selected for the application, helping the thermostat area maintain proper coolant containment under operating temperatures. This makes Fel-Pro 35632 a practical choice when servicing cooling system leaks on GM truck, SUV, and performance platforms.

What It Is Used For

• Replacing a worn thermostat O-ring that is leaking coolant
• Restoring a seal at the thermostat housing during cooling system repair
• Addressing coolant seepage around the thermostat assembly
• Supporting maintenance on Chevrolet Silverado, GMC Sierra, and related GM platforms
• Servicing cooling system leaks on Corvette, Trailblazer, and Canyon applications

Installation Notes and Tips

Inspect the thermostat housing and sealing surfaces before installation. Clean away old gasket material, corrosion, and coolant residue so the new O-ring can seat evenly. Verify the application by year, make, and model before ordering, since Fel-Pro 35632 is used across multiple GM and related platforms.

Quality Assurance

Fel-Pro gaskets are built around application-specific sealing materials and vehicle-focused fitment. The brand positions this part as a premium sealing solution for professional-level cooling system service.