Dorman 902-700 Engine Coolant Thermostat Housing Assembly

Reliable Engine Coolant Thermostat Housing Assembly

The Dorman 902-700 Engine Coolant Thermostat Housing Assembly is designed to maintain optimal engine temperature for select GM vehicles. This metal thermostat housing assembly includes a thermostat and gasket, ensuring a complete solution for your cooling system needs.

• Durable metal construction with natural finish
• Includes thermostat opening at 186°F for precise temperature control
• Comes with a gasket for a secure, leak-free seal
• Designed with two mounting holes and one outlet port
• Compatible with multiple Cadillac, Chevrolet, GMC, Hummer, and Pontiac models

Product Details and Specifications

The Dorman 902-700 thermostat housing assembly features a metal build with a natural color finish, providing strength and corrosion resistance. The inside diameter measures 1.236 inches, accommodating proper coolant flow. The flange dimensions are 4.39 inches in length, 2.701 inches in width, and 0.399 inches thick, designed to fit securely on the engine block. This assembly includes one thermostat calibrated to open at 186 degrees Fahrenheit, helping regulate engine temperature effectively. The package contains one thermostat housing, one thermostat, and one gasket, but mounting hardware is not included.

Compatible Vehicles and Applications

This thermostat housing assembly is compatible with a range of GM vehicles, including Cadillac Escalade, Chevrolet Silverado 1500, GMC Sierra 2500 HD, Hummer H2, and Pontiac Firebird, among others. It is suitable for models such as Avalanche 1500, Camaro, Corvette, Envoy XL, Escalade ESV, Express 3500, Savana 2500, Sierra 3500, Suburban 2500, Tahoe, Trailblazer EXT, Yukon XL 1500, and more. The Dorman 902-700 is an appropriate replacement part for maintaining proper engine cooling in these vehicles.

Common Issues Addressed by This Thermostat Housing Assembly

• Engine overheating due to faulty thermostat housing leaks
• Coolant leaks caused by worn or damaged gaskets
• Inconsistent engine temperature regulation
• Thermostat failure leading to poor engine performance
• Corrosion or cracking in original thermostat housing

Installation Notes and Tips

When installing the Dorman 902-700 thermostat housing assembly, ensure the engine is cool before beginning work. Remove the old thermostat housing carefully to avoid damaging surrounding components. Clean the mounting surface thoroughly before placing the new gasket and housing. Since mounting hardware is not included, reuse existing bolts if they are in good condition or source replacements as needed. Proper torque specifications should be followed to prevent leaks and ensure a secure fit.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 902-700 thermostat housing assembly includes a thermostat and gasket to ensure a complete and effective cooling system repair. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship.