Dorman 902-5005 Engine Coolant Thermostat Housing

Overview of Dorman Engine Coolant Thermostat Housing 902-5005

The Dorman 902-5005 engine coolant thermostat housing is designed specifically for Lexus LS400 and SC400 models. Constructed from durable black plastic, this thermostat housing ensures reliable performance and proper engine temperature regulation.

• Material: High-quality black plastic for corrosion resistance
• Outlet port diameter: 1.438 inches for precise coolant flow
• Includes gasket for a secure, leak-free seal
• Two mounting holes with 0.313-inch diameter for stable installation
• Housing neck angle: 180 degrees to match OEM specifications
• Package contains thermostat housing with gasket; thermostat and bolts not included

Detailed Product Description

The Dorman 902-5005 thermostat housing is engineered to meet the exact fitment requirements of Lexus LS400 and SC400 vehicles. Made from durable plastic, it resists corrosion and withstands the thermal stresses of engine operation. The housing features a 1.438-inch outlet port diameter, ensuring proper coolant flow through the engine cooling system. With two mounting holes sized at 0.313 inches, the housing mounts securely to the engine block. The 180-degree housing neck angle aligns with factory specifications, facilitating straightforward installation and compatibility. This part includes a gasket to provide a tight seal and prevent coolant leaks, though bolts and the thermostat itself are not included.

Common Applications and Issues Addressed

• Replacement for cracked or leaking thermostat housing on Lexus LS400 and SC400
• Prevents coolant leaks that can lead to engine overheating
• Restores proper coolant flow and temperature regulation
• Addresses issues caused by warped or damaged housing neck angle
• Eliminates gasket failure-related coolant seepage

Installation Notes and Tips

• Ensure engine is cool before removal to avoid burns
• Clean mounting surface thoroughly before installing new gasket and housing
• Use proper torque specifications for mounting bolts (not included)
• Inspect thermostat separately as it is not included with this housing
• Check coolant levels and system pressure after installation

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-5005 thermostat housing undergoes rigorous quality control to ensure durability and reliable performance in Lexus LS400 and SC400 vehicles. This part includes a gasket to ensure a proper seal. Warranty coverage details can be obtained from the product documentation or manufacturer.