Dorman 902-2021 Engine Coolant Thermostat Housing

Reliable Engine Coolant Thermostat Housing for GM Vehicles

The Dorman 902-2021 engine coolant thermostat housing is designed to provide a durable and precise fit for select Buick, Chevrolet, Oldsmobile, and Pontiac models. Constructed from metal with a natural finish, this thermostat housing ensures proper coolant flow and engine temperature regulation.

• Durable metal construction with natural color finish
• Includes gasket for secure sealing
• Outlet port diameter of 1.313 inches for accurate coolant flow
• Two mounting holes with 0.313 inch diameter for stable installation
• Compatible with multiple GM models including Buick LeSabre, Chevrolet Caprice, and Pontiac Grand Prix

Product Details and Specifications

The Dorman 902-2021 thermostat housing is engineered to meet OEM specifications for a range of General Motors vehicles. It features a metal build that withstands high engine temperatures and pressure. The housing includes a gasket to ensure a leak-free seal but does not come with bolts or a thermostat. The outlet port diameter measures 1.313 inches, and the housing has two mounting holes sized at 0.313 inches in diameter. The housing neck angle varies to accommodate different engine configurations. This part is designed for use without O-rings and does not include an air vent or bleeder valve.

Compatible Vehicles and Applications

This thermostat housing is compatible with various Buick, Chevrolet, Oldsmobile, and Pontiac models, including but not limited to:

• Buick LeSabre and Riviera
• Chevrolet Caprice and Monte Carlo
• Oldsmobile Cutlass Ciera and Delta 88
• Pontiac Grand Prix and Bonneville

Use the Dorman 902-2021 for reliable replacement in these vehicles to maintain proper engine cooling system performance.

Common Issues Addressed by This Thermostat Housing

• Coolant leaks caused by cracked or damaged housing
• Engine overheating due to faulty thermostat housing seal
• Corrosion or wear compromising coolant flow
• Improper fit or alignment of thermostat housing
• Replacement of worn or broken thermostat housing components

Installation Notes and Tips

When installing the Dorman 902-2021 thermostat housing, ensure the gasket is properly seated to prevent leaks. Use the existing bolts or source compatible hardware as bolts are not included. Verify the housing neck angle matches your engine configuration for correct fitment. It is recommended to inspect the thermostat separately as it is not included with this housing. Follow manufacturer torque specifications for mounting bolts to avoid damage.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for durability and fit. The 902-2021 thermostat housing undergoes quality checks to ensure reliable performance in your vehicle’s cooling system. Please refer to Dorman’s warranty policy for coverage details.