Dorman 902-2020 Engine Coolant Thermostat Housing

Reliable Engine Coolant Thermostat Housing for Select GM and Jeep Models

The Dorman 902-2020 engine coolant thermostat housing is designed to provide a durable and precise fit for various Buick, Chevrolet, Jeep, Oldsmobile, and Pontiac vehicles. Crafted from metal with a natural finish, this thermostat housing ensures reliable engine cooling system performance.

• Constructed from durable metal material for long-lasting use
• Includes a gasket for a secure, leak-free seal
• Natural color finish matches original equipment appearance
• Features two mounting holes with 0.313-inch diameter for secure installation
• Outlet port diameter measures 1.43 inches for proper coolant flow
• Housing neck angle set at 45 degrees for accurate fitment
• Compatible with multiple Buick, Chevrolet, Jeep, Oldsmobile, and Pontiac models
• Thermostat not included, housing only

Durable Construction and Precise Fitment Details

This Dorman engine coolant thermostat housing (part number 902-2020) is manufactured from metal to withstand the high temperatures and pressures within the cooling system. The natural finish maintains the OEM look, while the included gasket ensures a tight seal to prevent coolant leaks. The housing features two mounting holes, each with a diameter of 0.313 inches, allowing for secure attachment to the engine block. The outlet port diameter of 1.43 inches supports proper coolant flow, and the 45-degree housing neck angle matches factory specifications for a precise fit.

Compatible Vehicle Applications

This thermostat housing is compatible with a range of vehicles including Buick models like Century, LeSabre, and Riviera; Chevrolet models such as El Camino, Malibu, and Monte Carlo; Jeep CJ5 and Wagoneer; Oldsmobile Cutlass, Delta 88, and 98; Pontiac Firebird, Grand Prix, and Sunbird; as well as Acadian, Bonneville, Catalina, Grand Am, Grand LeMans, Laurentian, LeMans, Monza, Omega, Phoenix, Regal, Skyhawk, Skylark, and Starfire. Ensure compatibility by verifying your vehicle’s make and model before installation.

Common Issues Addressed by This Thermostat Housing

• Prevents coolant leaks caused by cracked or damaged housing
• Restores proper coolant flow to avoid engine overheating
• Eliminates coolant contamination from faulty seals
• Replaces corroded or worn thermostat housing components
• Ensures secure mounting to prevent coolant system pressure loss

Installation Notes and Tips

When installing the Dorman 902-2020 thermostat housing, ensure the engine is cool before beginning work. Remove the old housing carefully to avoid damaging surrounding components. Clean the mounting surface thoroughly to provide a proper seal with the included gasket. Use the two mounting holes with 0.313-inch diameter bolts (not included) to secure the housing firmly. Verify the 45-degree neck angle aligns correctly with the coolant hoses. Since the thermostat is not included, inspect and replace the thermostat separately if needed.

Quality Assurance and Warranty Information

Dorman manufactures this thermostat housing to meet or exceed OEM standards for fit, form, and function. The metal construction and included gasket contribute to reliable, leak-free operation. While the product does not include bolts or a thermostat, it is backed by Dorman’s quality assurance processes. Please refer to Dorman’s official warranty policy for specific coverage details.