Dorman 902-5052 Engine Coolant Thermostat Housing

Reliable Engine Coolant Thermostat Housing for Subaru Vehicles

The Dorman 902-5052 engine coolant thermostat housing is designed to provide a durable and precise fit for select Subaru models. Crafted from metal with a natural finish, this thermostat housing ensures efficient coolant flow and reliable engine temperature regulation.

• Constructed from durable metal material for long-lasting performance
• Includes a gasket for a secure, leak-free seal
• Compatible with Subaru Baja, Forester, Impreza, Legacy, Outback, WRX, and WRX STI models
• Features a 1.438-inch outlet port diameter and two mounting holes with 0.313-inch diameter
• Housing neck angle of 180 degrees for proper coolant routing

Product Details and Specifications

The Dorman 902-5052 thermostat housing is engineered to meet the exact specifications required by Subaru vehicles including the Baja, Forester, Impreza, Legacy, Outback, WRX, and WRX STI. The metal construction offers enhanced durability compared to plastic alternatives, reducing the risk of cracks or leaks under high engine temperatures. This thermostat housing comes with a pre-installed gasket to ensure a tight seal and prevent coolant leaks. It features two mounting holes sized at 0.313 inches in diameter for secure attachment. The outlet port diameter measures 1.438 inches, and the housing neck angle is set at 180 degrees to maintain proper coolant flow within the engine cooling system. Note that this part does not include the thermostat or mounting bolts, and no air vent or bleeder valve is present.

Common Applications and Problem Resolution

• Replacement for cracked or damaged thermostat housing in Subaru cooling systems
• Prevents coolant leaks that can lead to engine overheating
• Restores proper coolant flow and temperature regulation
• Addresses issues related to coolant contamination from housing failure
• Ensures secure mounting with included gasket for leak prevention

Installation Notes and Tips

When installing the Dorman 902-5052 thermostat housing, ensure the engine is cool before beginning work to avoid injury. Remove the old housing carefully to prevent damage to surrounding components. Clean the mounting surface thoroughly before placing the new gasket and housing. Use the correct torque specifications for the mounting bolts (not included) to avoid warping or leaks. Since the thermostat is not included, verify the condition of the existing thermostat and replace if necessary. Check for leaks after installation by running the engine and monitoring coolant flow.

Quality Assurance and Warranty Information

Dorman manufactures the 902-5052 thermostat housing to meet or exceed OEM standards for fit, form, and function. The metal construction provides enhanced durability and resistance to heat and corrosion. This part includes a gasket to ensure a proper seal and reduce the risk of coolant leaks. While mounting bolts and thermostat are not included, the housing is designed for straightforward installation with compatible Subaru models. Dorman typically offers a limited warranty on their parts; please refer to official Dorman documentation for specific warranty details.