Dorman 902-2078 Engine Coolant Thermostat Housing Assembly

Reliable Engine Coolant Thermostat Housing Assembly for Cadillac and Chevrolet

The Dorman 902-2078 Engine Coolant Thermostat Housing Assembly is designed to provide a precise fit and reliable performance for select Cadillac and Chevrolet vehicles. Engineered with durable metal construction and including all necessary mounting hardware, this assembly ensures proper engine temperature regulation and cooling system efficiency.

Key Features of the Dorman 902-2078 Thermostat Housing Assembly

• Constructed from durable metal with a natural finish for corrosion resistance
• Includes thermostat calibrated to open at 180 degrees Fahrenheit
• Comes complete with gasket and three mounting bolts for straightforward installation
• Features one outlet port and three mounting holes with precise bolt hole spacing (1.247, 2.696, and 3.257 inches center to center)
• Flange dimensions: length 4.346 inches, width 1.951 inches, thickness 2.054 inches
• Compatible with Cadillac ATS, CTS and Chevrolet Camaro models

Detailed Description of the Thermostat Housing Assembly

This Dorman thermostat housing assembly (part number 902-2078) is designed to maintain optimal engine temperature by housing the thermostat that regulates coolant flow. The metal construction provides strength and durability under high-temperature conditions. The included thermostat opens at 180°F, ensuring timely coolant circulation to prevent overheating. The assembly includes a standard gasket to ensure a secure seal and prevent leaks. Its precise mounting hole layout and included hardware simplify replacement on compatible Cadillac ATS, CTS, and Chevrolet Camaro vehicles.

Common Applications and Issues Addressed

• Replacement of cracked or leaking thermostat housing
• Resolving engine overheating due to thermostat failure
• Fixing coolant leaks caused by worn or damaged gaskets
• Restoring proper coolant flow in Cadillac ATS, CTS, and Chevrolet Camaro engines
• Addressing mounting hardware loss or damage during maintenance

Installation Notes and Tips

• Ensure engine is cool before beginning installation to avoid burns
• Use the included gasket and bolts to secure the housing tightly and prevent leaks
• Verify thermostat orientation matches original for correct operation
• Check coolant levels and refill as necessary after installation
• Inspect surrounding hoses and connections for wear during replacement

Quality Assurance and Warranty Information

Dorman 902-2078 thermostat housing assemblies are manufactured to meet or exceed OEM specifications for fit, form, and function. The assembly includes all necessary components for a complete replacement. While specific warranty details vary, Dorman typically offers a limited warranty covering defects in material and workmanship to ensure product reliability and customer confidence.