Dorman 902-813 Engine Coolant Thermostat Housing Assembly - Engine Block

Reliable Engine Coolant Thermostat Housing Assembly for BMW Models

The Dorman 902-813 Engine Coolant Thermostat Housing Assembly is designed to maintain optimal engine temperature for various BMW vehicles. This assembly includes a thermostat and gasket, ensuring a complete solution for your cooling system needs.

• Constructed from durable black plastic material
• Includes thermostat calibrated to open at 206°F
• Comes with a gasket for a secure seal
• Features four mounting holes for stable installation
• Compatible with multiple BMW models including 3 Series, 5 Series, X3, X5, Z3, and Z4

Product Details and Specifications

The Dorman 902-813 thermostat housing assembly is made from high-quality plastic designed to withstand engine heat and pressure. The black housing measures 4.5 inches in flange length and width, with a flange thickness of 0.45 inches, providing a precise fit. It includes one outlet port and four mounting holes, with bolt hole center distances ranging from 3 to 4 inches to match OEM specifications. The assembly contains a thermostat that opens at 206 degrees Fahrenheit, helping regulate coolant flow and engine temperature effectively. A gasket is included to ensure a leak-free seal between the housing and engine block. Note that mounting hardware is not included with this assembly.

Compatible BMW Models and Applications

This thermostat housing assembly is compatible with a wide range of BMW vehicles, including the 320i, 323Ci, 323i, 325Ci, 325i, 325xi, 328Ci, 328i, 330Ci, 330i, 330xi, 525i, 528i, 530i, X3, X5, Z3, and Z4 models. It is designed to replace the original thermostat housing and restore proper coolant flow and temperature regulation in these vehicles.

Common Issues Addressed by This Thermostat Housing Assembly

• Engine overheating due to faulty thermostat housing
• Coolant leaks from cracked or damaged housing
• Erratic engine temperature readings
• Reduced engine performance caused by improper coolant flow
• Failed thermostat causing engine to run too cold or too hot

Installation Notes and Tips

Before installation, ensure the engine is cool and the cooling system is depressurized. Remove the old thermostat housing carefully to avoid damaging surrounding components. Clean the mounting surface thoroughly before installing the new gasket and housing assembly. Torque mounting bolts to manufacturer specifications to prevent leaks. Since mounting hardware is not included, reuse original bolts or source appropriate replacements. Verify proper thermostat operation after installation by monitoring engine temperature during a test drive.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-813 thermostat housing assembly undergoes rigorous quality checks to ensure durability and reliable 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.