Dorman 902-2100 Engine Coolant Thermostat Housing Assembly - Upper

Overview of Dorman Engine Coolant Thermostat Housing Assembly

The Dorman 902-2100 Engine Coolant Thermostat Housing Assembly is designed for reliable cooling system performance in select Buick and Suzuki vehicles. This metal thermostat housing assembly includes a thermostat and gasket, engineered to maintain optimal engine temperature and prevent overheating.

• Durable metal construction with natural finish
• Includes thermostat calibrated to open at 180°F
• Comes with a gasket for a secure seal
• Designed with three mounting holes for precise fitment
• Compatible with Buick Allure, LaCrosse, Rendezvous and Suzuki XL-7 models

Detailed Product Description

The Dorman 902-2100 thermostat housing assembly features a robust metal build with a natural color finish, ensuring durability and resistance to engine heat and coolant exposure. The included thermostat opens at 180 degrees Fahrenheit, helping regulate coolant flow to maintain engine temperature within manufacturer specifications. The housing has three mounting holes with bolt hole center distances of 1.269, 2.695, and 3.294 inches, providing a secure and accurate fit. The flange dimensions—4.5 inches in length, 1.07 inches in width, and 0.5 inches in thickness—are designed to match OEM specifications. This assembly includes one outlet port and a gasket to ensure a leak-free seal, but does not include mounting hardware.

Compatible Vehicles and Applications

This thermostat housing assembly is compatible with the following vehicles:

• Buick Allure
• Buick LaCrosse
• Buick Rendezvous
• Suzuki XL-7

It is ideal for replacing worn or damaged thermostat housings in these models to restore proper coolant flow and engine temperature regulation.

Common Issues Addressed by This Thermostat Housing Assembly

• Engine overheating due to thermostat failure
• Coolant leaks from cracked or warped thermostat housing
• Erratic engine temperature readings
• Reduced engine performance caused by improper coolant flow
• Failed emissions tests related to engine temperature control

Installation Notes and Tips

When installing the Dorman 902-2100 thermostat housing assembly, ensure the engine is cool before beginning work. Use the included gasket to create a proper seal and prevent coolant leaks. Verify the mounting hole alignment with the vehicle’s engine block and torque bolts to manufacturer specifications. Since mounting hardware is not included, reuse existing bolts if in good condition or source OEM replacements. Proper installation will help maintain engine cooling efficiency and prevent premature thermostat failure.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-2100 thermostat housing assembly undergoes quality checks to ensure durability and reliable performance. While specific warranty details are not provided here, Dorman typically offers limited warranties on their replacement parts. Consult product documentation or the manufacturer for exact warranty terms.