Fel-Pro 35424 Engine Coolant Thermostat Housing Seal

Fel-Pro 35424 Thermostat Housing Seal

Fel-Pro 35424 is an engine coolant thermostat housing seal built for a precise sealing surface in the cooling system. It uses application-specific materials and a premium grade construction to help maintain a dependable seal on compatible Honda Civic and Honda CRX applications.

Key Features

• Engine coolant thermostat housing seal for cooling system service
• Premium grade construction for a consistent sealing interface
• Inside diameter: 1.538 in. / 39.0 mm
• Thickness: 0.213 in. / 5.4 mm
• Mounting hole quantity: 0
• Fits 1988-1991 Honda Civic and 1988-1991 Honda CRX applications

Product Details

Fel-Pro 35424 is made for thermostat housing sealing where coolant control and leak prevention matter. The seal dimensions are specified for a controlled fit, with a 1.538-inch inside diameter and 0.213-inch thickness to match the housing interface on listed Honda applications. Fel-Pro gaskets are known for vehicle-specific sealing materials, and this part follows that approach for service work on 1988-1991 Honda Civic and 1988-1991 Honda CRX models. This part number, 35424, is a direct-fit sealing component for the thermostat housing area.

This part cross-references BBB Industries 11554 for the same application.

Common Problems This Part Can Address

• Coolant seepage at the thermostat housing
• Loss of seal integrity after thermostat service
• Coolant odor or visible residue around the housing
• Temperature control issues caused by coolant leakage
• Repeat leaks from an aged or compressed housing seal

Installation Notes and Tips

Clean the thermostat housing and mating surfaces before installation so the seal can seat evenly. Verify the housing and gasket surfaces are free of old material, corrosion, and debris. Confirm the seal orientation and dimensions against the removed part before reassembly. For Honda Civic and Honda CRX cooling system service, use the correct coolant and refill procedure after installation to help restore proper system operation. Recheck the area after the engine reaches operating temperature.

Quality Assurance

Fel-Pro focuses on application-specific sealing materials and vehicle sealing coverage for professional repair use. Part number 35424 is built as a premium sealing solution for the listed Honda applications.