Fel-Pro 35950 Engine Coolant Thermostat Housing Seal

Fel-Pro 35950 Thermostat Housing Seal

The Fel-Pro 35950 engine coolant thermostat housing seal is a premium sealing solution for Volkswagen cooling system service. Built with application-specific materials, it supports a tight seal at the thermostat housing to help maintain proper coolant control on covered Volkswagen Golf, Jetta, EuroVan, Passat, and Corrado applications.

Key Features

• Premium-grade engine coolant thermostat housing seal
• Application-specific material selection for vehicle sealing
• Supports 100% vehicle sealing at the thermostat housing interface
• Direct-fit replacement for select Volkswagen cooling system repairs
• Cross-references MAHLE C31634 and 021121119A for the same application

Detailed Description

Fel-Pro 35950 is an engine coolant thermostat housing seal engineered for Volkswagen cooling system maintenance where a precise seal is required between the thermostat housing and mating surfaces. Fel-Pro gaskets are known for using materials matched to the application, helping deliver the sealing performance and durability expected in professional repair work. This part number is used across multiple Volkswagen platforms, including Golf, Jetta, EuroVan, Passat, and Corrado models, making it a practical choice for technicians servicing these vehicles.

Fits 1995-2005 Volkswagen Golf, N/A. Fits 1994-2004 Volkswagen Jetta, N/A. Fits 1999-2003 Volkswagen EuroVan, N/A. Fits 1997 Volkswagen EuroVan, N/A. Fits 1993-1997 Volkswagen Passat, N/A. Fits 1992-1995 Volkswagen Corrado, N/A.

Common Repair Uses

• Coolant seepage at the thermostat housing
• Seal replacement during thermostat service
• Leak repair after housing removal or inspection
• Restoring a proper coolant seal on Volkswagen cooling systems
• Addressing aging or compressed gasket material

Installation Notes and Tips

Clean both sealing surfaces thoroughly before installation and inspect the thermostat housing for warpage, corrosion, or residue that can affect sealing. Verify the housing and gasket match the vehicle application before assembly. Follow the vehicle service procedure and coolant refill/bleeding steps for the specific Volkswagen model being repaired.

Quality Assurance

Fel-Pro positions this seal as a premium sealing component built with application-specific materials for professional-grade durability. The brand’s sealing systems are developed for reliable vehicle sealing in cooling system service.