Fel-Pro 35633 Engine Water Pump O-Ring

Fel-Pro 35633 Engine Water Pump O-Ring

Fel-Pro 35633 is a premium engine water pump O-ring built for sealing performance on a wide range of GM applications. It is a direct-fit sealing component for service work where a precise water pump seal is needed on vehicles such as the Chevrolet Silverado 1500, GMC Sierra 1500, and Chevrolet Corvette.

Key Features

• Premium-grade engine water pump O-ring
• Application-specific sealing material for a precise fit
• Supports reliable 100% vehicle sealing when installed correctly
• Engine cooling system sealing component for service replacement
• Cross-references MAHLE K31629 for the same application

Product Details

Fel-Pro part number 35633 is an O-ring used in engine water pump sealing applications. Fel-Pro gaskets are known for using vehicle-specific materials and sealing solutions that professionals rely on for durability and consistent fit. This part is a practical choice for cooling system repairs on compatible Chevrolet, GMC, Cadillac, Pontiac, Buick, Hummer, Saab, and Isuzu models across the 1997-2020 model years.

Compatible With 2001-2019 Chevrolet Silverado 2500 HD, 2007-2019 Chevrolet Silverado 3500 HD, 2000-2014 Chevrolet Tahoe, 1999-2013 GMC Sierra 1500, and 1997-2013 Chevrolet Corvette applications. The Fel-Pro 35633 water pump O-ring is also used across many other GM trucks, SUVs, and performance vehicles listed in the fitment data.

Common Repair Uses

• Replacing a worn or flattened water pump seal
• Addressing coolant seepage at the water pump interface
• Restoring sealing integrity after water pump service
• Correcting leaks caused by age, heat cycling, or gasket compression
• Supporting cooling system maintenance on GM truck and car platforms

Installation Notes and Tips

Clean the sealing surfaces thoroughly before installation and inspect the water pump and mating components for corrosion, pitting, or debris. Verify the O-ring seats evenly in the groove and follow the vehicle service procedure for the specific engine application. Confirm fitment by year, make, model, and engine configuration before installation. This part number 35633 should be matched to the exact cooling system service requirement for the vehicle.

Quality Assurance

Fel-Pro focuses on application-specific sealing materials and vehicle-focused design to deliver consistent sealing performance. Part number 35633 is engineered as a premium sealing component for professional repair use.