Dorman 902-983 Engine Coolant Thermostat Housing - Engine Block or Upper

Engine Coolant Thermostat Housing for Volkswagen and Audi

Dorman 902-983 is a replacement engine coolant thermostat housing built to match the fit and durability of the original housing on specified vehicles. It is made from black plastic and engineered to handle extreme temperature changes for longer service life.

• Replacement engine coolant thermostat housing for cooling system service
• Black plastic construction
• 90-degree housing neck angle
• 1.5 outlet port diameter
• 2 mounting holes with 0.35 mounting hole diameter
• No gasket or seal included
• No thermostat included
• No air vent (bleeder valve)

Fitment and Application Details

Compatible with 2003-2004 Volkswagen EuroVan, engine block, cover; 8th digit of VIN is 0. Compatible with 2001-2002 Volkswagen EuroVan, engine block, engine coolant thermostat housing for cooling system. Compatible with 1990-1991 Audi 100, upper, engine coolant thermostat housing for cooling system. Compatible with 1990-1991 Audi 100 Quattro, upper, engine coolant thermostat housing for cooling system.

This part cross-references Motorad CH9983 and Dorman - Conduct-Tite 85937 for the same application.

What This Part Helps Address

• Cracked or heat-damaged thermostat housing
• Coolant leaks at the housing connection
• Warped plastic housing from repeated temperature cycling
• Cooling system service on the engine block or upper housing location
• Fitment replacement for worn OE-style coolant outlet assemblies

Installation Notes and Tips

Verify the vehicle year, model, and engine application before installation. Transfer or replace the thermostat and sealing components as required by the vehicle service procedure, since this housing does not include a gasket, seal, or thermostat. Confirm the 90-degree neck orientation and outlet size match the original part before assembly.

Quality Assurance

Dorman designs this thermostat housing to match stock fit and durability on the listed Volkswagen and Audi applications. The housing is built to withstand extreme temperature changes for dependable cooling system service.