Dorman 902-2023 Engine Coolant Thermostat Housing

Reliable Engine Coolant Thermostat Housing for GM Vehicles

The Dorman 902-2023 engine coolant thermostat housing is designed to provide a durable and precise fit for select Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. 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
• Outlet port diameter of 1.25 inches for proper coolant flow
• Two mounting holes with 0.313-inch diameter for secure installation
• 180-degree housing neck angle for correct hose alignment
• Compatible with Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models including Caprice, Fleetwood, Grand Am, and more

Product Details and Specifications

The Dorman 902-2023 thermostat housing is engineered to meet the specifications required by various General Motors vehicles. It comes with a pre-installed gasket to ensure a tight seal and prevent coolant leaks. The housing features a 1.25-inch outlet port diameter and two mounting holes sized at 0.313 inches, designed for a secure fit. The 180-degree neck angle aligns with factory hose routing, maintaining proper coolant flow and system integrity. This part does not include the thermostat or bolts, and no O-rings are required for installation.

Compatible Vehicles and Applications

This engine coolant thermostat housing is compatible with a range of GM vehicles, including Buick 6000, Cadillac Fleetwood, Chevrolet Caprice and Commercial Chassis, Oldsmobile Cutlass Ciera and Cutlass Cruiser, Pontiac Grand Am and Roadmaster, and others. It is an appropriate replacement part for maintaining the cooling system's efficiency in these models.

Common Issues Addressed by This Thermostat Housing

• Coolant leaks caused by cracked or damaged thermostat housing
• Overheating due to improper coolant flow
• Corrosion or wear compromising the housing seal
• Loose or broken mounting points affecting housing stability
• Replacement of worn or missing gaskets to prevent leaks

Installation Notes and Tips

Before installation, ensure the engine is cool and the cooling system is depressurized. Remove the old thermostat housing carefully to avoid damaging surrounding components. Clean the mounting surface thoroughly to ensure 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 180-degree neck angle aligns with the coolant hose for correct installation. Check for leaks after installation and refill the cooling system as needed.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-2023 thermostat housing undergoes quality inspections to ensure durability and performance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship. Consult product documentation for exact warranty terms.