Dorman 902-957 Engine Coolant Thermostat Housing Assembly

Overview of Dorman Engine Coolant Thermostat Housing Assembly

The Dorman 902-957 Engine Coolant Thermostat Housing Assembly is designed for Volkswagen Lupo and Polo models. This assembly includes a thermostat, housing, water outlet, and gasket, providing a complete solution for your vehicle's cooling system needs.

• Material: Durable black plastic construction
• Includes thermostat with 192°F opening temperature
• Comes with gasket for secure sealing
• Four mounting holes for stable installation
• One outlet port for coolant flow
• Flange dimensions: 4" length, 5" width, 0.6" thickness
• Compatible with Volkswagen Lupo and Polo models
• Part number: 902-957

Detailed Product Description

This engine coolant thermostat housing assembly by Dorman is engineered to meet the cooling system requirements of Volkswagen Lupo and Polo vehicles. Constructed from high-quality black plastic, the housing offers corrosion resistance and reliable performance. The assembly includes a thermostat calibrated to open at 192 degrees Fahrenheit, ensuring proper engine temperature regulation. The package also contains a water outlet and a gasket to provide a tight seal and prevent coolant leaks. With four mounting holes and precise flange dimensions, this part ensures a secure fit and easy installation.

Common Applications and Problem Resolution

• Replaces cracked or damaged thermostat housing
• Solves coolant leaks around the thermostat area
• Addresses engine overheating due to thermostat failure
• Restores proper coolant flow in Volkswagen Lupo and Polo models
• Prevents coolant contamination and maintains engine temperature stability

Installation Notes and Tips

Before installation, ensure the engine is cool and the cooling system is depressurized. Remove the old thermostat housing carefully to avoid damaging surrounding components. Clean the mounting surface thoroughly before placing the new gasket and housing assembly. Torque mounting bolts evenly to manufacturer specifications. Verify proper thermostat operation by monitoring engine temperature after installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-957 thermostat housing assembly undergoes rigorous quality checks to ensure durability and performance. This product includes a gasket for proper sealing but does not include mounting hardware. Warranty details are provided by Dorman and typically cover defects in material and workmanship.