Dorman 902-5858 Engine Coolant Thermostat Housing - Pipe To Crossover Manifold

Reliable Engine Coolant Thermostat Housing for Subaru Vehicles

The Dorman 902-5858 engine coolant thermostat housing is designed to provide a durable and precise fit for various Subaru models. Crafted from metal with a natural finish, this thermostat housing ensures consistent performance and longevity in your vehicle's cooling system.

• Constructed from durable metal material for strength and heat resistance
• Natural color finish for corrosion resistance and OEM appearance
• Outlet port diameter of 0.41 inches for proper coolant flow
• Height of 2 inches with a 70-degree housing neck angle for accurate fitment
• Two mounting holes with bolt hole center spacing of 1.9 inches
• Flange thickness of 0.525 inches for secure sealing
• Compatible with multiple Subaru models including Crosstrek, Forester, Impreza, Legacy, Outback, XV, and XV Crosstrek
• Part number 902-5858 for easy identification and replacement

Detailed Product Description

The Dorman 902-5858 engine coolant thermostat housing is engineered to meet the specifications required by Subaru vehicles such as the Crosstrek, Forester, Impreza, Legacy, Outback, XV, and XV Crosstrek. Made from metal, this housing offers durability and resistance to the high temperatures and pressures found in engine cooling systems. The natural finish helps prevent corrosion, maintaining the integrity of the housing over time.

With a 0.41-inch outlet port diameter and a 70-degree housing neck angle, this thermostat housing ensures proper coolant flow and connection to the cooling system components. The two mounting holes, spaced 1.9 inches apart center-to-center, and flange thickness of 0.525 inches provide a secure and precise fit. Note that this part does not include a thermostat, gasket, bolts, or O-rings, so these components should be sourced separately if needed.

Common Applications and Issues Addressed

• Replacement for cracked or leaking thermostat housings in Subaru Crosstrek and Forester models
• Fixes coolant leaks caused by warped or damaged housing flanges
• Restores proper coolant flow in Subaru Impreza and Legacy vehicles
• Prevents overheating issues related to faulty thermostat housing connections
• Supports maintenance of the cooling system in Subaru Outback and XV Crosstrek

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Inspect and replace the thermostat, gasket, and mounting hardware as needed since they are not included
• Clean the mounting surface thoroughly to ensure a proper seal
• Torque mounting bolts to manufacturer specifications to prevent leaks
• Check coolant levels and system pressure after installation

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance for your Subaru vehicle. The 902-5858 thermostat housing undergoes rigorous quality control to ensure durability and fitment accuracy. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official documentation for exact warranty terms.