Fel-Pro 35346 Engine Coolant Thermostat O-Ring

Fel-Pro 35346 Engine Coolant Thermostat O-Ring

Fel-Pro 35346 is a premium engine coolant thermostat O-ring built for vehicle-specific sealing performance. It is made for applications where a precise coolant seal is needed to help maintain proper thermostat housing integrity on a wide range of GM vehicles, including Chevrolet Malibu, Chevrolet Equinox, and GMC Terrain.

Key Features

• Premium-grade thermostat O-ring for cooling system sealing
• Application-specific material selection for a proper fit and seal
• Engineered for 100% vehicle sealing in the intended application
• Direct replacement for select GM cooling system service needs
• Fel-Pro part number 35346 for easy identification

Detailed Description

Fel-Pro 35346 is an engine coolant thermostat O-ring designed to seal the thermostat housing in supported cooling system applications. Fel-Pro focuses on vehicle-specific sealing solutions, using materials selected for the demands of the application rather than a one-size-fits-all approach. That makes this O-ring a practical choice for service work on vehicles such as the Chevrolet Malibu, Chevrolet Equinox, and GMC Terrain, as well as other listed Buick, Pontiac, Saturn, Cadillac, and Chevrolet models. This part cross-references Gates 33616 for the same application.

Common Issues This Part Helps Address

• Coolant seepage at the thermostat housing
• Loss of seal after thermostat service
• Coolant odor or visible residue around the housing
• Improper sealing from a worn or flattened O-ring
• Cooling system leaks traced to the thermostat interface

Installation Notes and Tips

Inspect the thermostat housing and sealing surfaces before installation. Remove all old gasket material, coolant residue, and corrosion so the new O-ring can seat evenly. Use the correct coolant service procedure for the vehicle, and verify that the thermostat housing is aligned and tightened to specification after assembly. Fits 2010-2017 Chevrolet Equinox, 2010-2017 GMC Terrain, and 2004-2014 Chevrolet Malibu in the listed cooling system application.

Quality Assurance

Fel-Pro gaskets are known for application-specific sealing materials and professional-grade durability. Fel-Pro 35346 is a premium sealing component built to support reliable thermostat housing service on the listed vehicles.