Dorman 902-421 Engine Coolant Thermostat Housing Assembly

Reliable Engine Coolant Thermostat Housing Assembly for Land Rover and Volvo

The Dorman 902-421 Engine Coolant Thermostat Housing Assembly is designed to maintain optimal engine temperature for select Land Rover and Volvo models. This assembly includes a thermostat and gasket, ensuring a complete solution for your vehicle's cooling system needs.

• Material: Durable black plastic housing
• Includes thermostat with 195°F opening temperature
• Comes with a gasket for a secure seal
• Features two outlet ports and four mounting holes
• Compatible with Land Rover LR2 and Volvo S60, S80, V60, V70, XC60, XC70, XC90

Product Details and Specifications

The Dorman 902-421 thermostat housing assembly is constructed from high-quality plastic designed to withstand engine heat and pressure. The housing measures 3.131 inches in width, 2.917 inches in flange length, and 0.51 inches in flange thickness, providing a precise fit. It features an inside diameter of 0.845 inches and includes two outlet ports for efficient coolant flow. The assembly comes with a thermostat calibrated to open at 195 degrees Fahrenheit, helping regulate engine temperature effectively. Four mounting holes with bolt hole center distances of 1.3 and 2.5 inches ensure secure installation. A gasket is included to prevent leaks and maintain system integrity.

Compatible Vehicles and Applications

This thermostat housing assembly is compatible with a range of Land Rover and Volvo vehicles, including the Land Rover LR2 and Volvo S60, S80, V60, V70, XC60, XC70, and XC90 models. It is designed to replace the original equipment part, providing a reliable fit and function for these specific vehicles.

• Helps prevent engine overheating
• Resolves coolant leaks around the thermostat housing
• Addresses thermostat failure or sticking issues
• Restores proper coolant flow and engine temperature regulation
• Eliminates coolant contamination from damaged seals

Installation Notes and Tips

Installation of the Dorman 902-421 thermostat housing assembly requires removal of the old housing and thermostat. Ensure the engine is cool before beginning work. Clean the mounting surface thoroughly to remove old gasket material. Use the included gasket to create a proper seal and tighten mounting bolts evenly to the manufacturer's torque specifications. Since mounting hardware is not included, reuse existing bolts or acquire new ones as needed. Verify coolant levels and check for leaks after installation.

Quality Assurance and Warranty

Dorman parts are engineered to meet or exceed OEM specifications. The 902-421 thermostat housing assembly undergoes rigorous quality control to ensure durability and performance. This product includes a gasket and thermostat to provide a complete replacement solution. Please refer to Dorman's warranty policy for specific coverage details.