Dorman 902-107 Engine Coolant Thermostat Housing

Reliable Engine Coolant Thermostat Housing for Chevrolet and GMC Vehicles

The Dorman 902-107 engine coolant thermostat housing is designed to provide a durable and precise fit for select Chevrolet, GMC, Isuzu, and Oldsmobile models. Engineered from steel with a black finish, this thermostat housing ensures reliable performance in your vehicle's cooling system.

• Constructed from durable steel material for long-lasting use
• Black color finish for corrosion resistance
• Outlet port diameter of 1.263 inches for proper coolant flow
• Two mounting holes with 0.353-inch diameter for secure installation
• 90-degree housing neck angle to match OEM specifications
• Does not include thermostat, gasket, bolts, or O-rings

Product Details and Specifications

The Dorman 902-107 thermostat housing is a water outlet component designed to replace the original housing on compatible vehicles. It features a 90-degree neck angle and an outlet port diameter of 1.263 inches, ensuring proper coolant routing and system efficiency. The housing includes two mounting holes, each with a diameter of 0.353 inches, allowing for a secure and stable fit. This part is finished in black to resist corrosion and is made from steel to withstand the demands of engine heat and pressure.

Compatible Vehicles and Applications

This thermostat housing is compatible with a range of Chevrolet, GMC, Isuzu, and Oldsmobile models, including Chevrolet Blazer, Bravada, C1500, Jimmy, S10, Silverado 1500, Silverado 1500 Classic, GMC Sierra 1500, Sierra 1500 Classic, and Sonoma, as well as Isuzu Hombre. It is designed to meet the exact fitment requirements of these vehicles, ensuring proper integration with the engine cooling system.

Common Issues Addressed by This Thermostat Housing

• Leaking or cracked original thermostat housing
• Coolant leaks causing engine overheating
• Corrosion damage to the existing housing
• Improper coolant flow due to damaged outlet port
• Loose or broken mounting points affecting coolant system integrity

Installation Notes and Tips

Before installation, ensure the engine is cool and the cooling system is depressurized. Remove the old thermostat housing carefully, inspecting the mounting surface for debris or damage. This Dorman 902-107 housing does not include a thermostat, gasket, bolts, or O-rings, so these components must be sourced separately. Use appropriate torque specifications when securing the housing to avoid leaks or 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 902-107 thermostat housing undergoes rigorous quality control to ensure durability and reliable performance. While this product does not include a thermostat or seals, it is backed by Dorman's limited warranty against defects in material and workmanship, providing confidence in your replacement part.