Dorman 902-5927 Engine Coolant Thermostat Housing

Overview of Dorman Engine Coolant Thermostat Housing 902-5927

The Dorman 902-5927 engine coolant thermostat housing is designed for reliable cooling system performance in select Toyota and Scion vehicles. This black plastic housing provides a precise fit for models including the Toyota Corolla, Corolla iM, Matrix, xD, and the Scion C-HR and iM.

• Durable black plastic construction for corrosion resistance
• Outlet port diameter of 1.44 inches for proper coolant flow
• Two mounting holes with 0.28 inch diameter for secure installation
• 30-degree housing neck angle to match OEM specifications
• Includes thermostat housing only; thermostat, bolts, gaskets, and O-rings are not included

Detailed Product Description

The Dorman 902-5927 thermostat housing is engineered to meet the exact specifications required by Toyota and Scion vehicles such as the Corolla, Corolla iM, Matrix, xD, and C-HR. Constructed from durable plastic, this housing resists corrosion and heat degradation common in engine cooling systems. The 1.44-inch outlet port diameter ensures proper coolant flow, while the 30-degree neck angle aligns with factory design for seamless integration. With two mounting holes sized at 0.28 inches, the housing secures firmly to the engine block. This part does not include a thermostat, gasket, bolts, or O-rings, so these components should be sourced separately during installation.

Compatible Vehicles and Common Applications

• Replacement for thermostat housing failures in Toyota Corolla and Corolla iM models
• Suitable for Scion C-HR and iM cooling system repairs
• Used in Toyota Matrix and xD models to maintain proper engine temperature regulation
• Addresses coolant leaks caused by cracked or damaged thermostat housings
• Helps resolve overheating issues related to faulty housing seals or warping

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Inspect and replace the thermostat, gasket, and mounting bolts as needed since they are not included
• Clean the mounting surface thoroughly to prevent leaks
• Torque mounting bolts to manufacturer specifications to avoid damage
• Verify proper coolant flow and check for leaks after installation

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-5927 thermostat housing undergoes quality control testing to ensure durability and performance in demanding engine environments. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Consult product documentation or Dorman directly for exact warranty terms.