Dorman 902-821 Engine Coolant Thermostat Housing Assembly

Reliable Engine Coolant Thermostat Housing Assembly

The Dorman 902-821 Engine Coolant Thermostat Housing Assembly is designed to maintain optimal engine temperature for Chevrolet, Pontiac, and Suzuki vehicles. This metal thermostat housing assembly includes a thermostat and gasket, ensuring a secure and efficient cooling system operation.

• Durable metal construction with natural finish
• Includes thermostat opening at 221°F for precise temperature control
• Comes with a gasket for a proper seal
• Compatible with Chevrolet Aveo, Cruze, Sonic, Pontiac G3, and Suzuki Swift+ models
• Flange dimensions: 2.89" length, 2.59" width, 0.38" thickness
• Four mounting holes for secure installation
• Inside diameter of 1.13 inches for proper coolant flow

Product Details and Specifications

The Dorman 902-821 thermostat housing assembly is constructed from metal to provide durability and resistance to heat and corrosion. It features a natural color finish and includes one thermostat calibrated to open at 221 degrees Fahrenheit, which helps regulate engine temperature effectively. The assembly includes a gasket to ensure a tight seal and prevent coolant leaks. The housing has four mounting holes with bolt hole center distances of 2.37 in, 1.88 in, 2.03 in, and 2.34 in, designed for a secure fit. The flange measures 2.89 inches in length, 2.59 inches in width, and 0.38 inches in thickness, providing a stable mounting surface. This assembly has one outlet port and does not include a bleeder hole.

Compatible Vehicles and Applications

This thermostat housing assembly is compatible with select Chevrolet, Pontiac, and Suzuki models, including Chevrolet Aveo, Aveo5, Cruze, Cruze Limited, Sonic, Pontiac G3, G3 Wave, and Suzuki Swift+ and Trax. It is designed to replace the original equipment part and restore proper coolant flow and temperature regulation in these vehicles.

Common Issues Addressed by This Thermostat Housing Assembly

• Engine overheating due to thermostat failure
• Coolant leaks from damaged or worn housing
• Inconsistent engine temperature regulation
• Corrosion or cracking in the original thermostat housing
• Coolant flow restrictions causing engine performance issues

Installation Notes and Tips

Installation requires removal of the old thermostat housing and cleaning of the mounting surface to ensure a proper seal. The included gasket must be positioned correctly to prevent leaks. Note that mounting hardware is not included, so reuse existing bolts or acquire new ones as needed. Verify the thermostat opening temperature matches vehicle specifications before installation. Proper torque on mounting bolts is essential to avoid damage or leaks.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-821 thermostat housing assembly undergoes quality checks to ensure durability and reliable performance. This product includes a gasket and thermostat to provide a complete solution for engine cooling system maintenance. Warranty details should be confirmed with the distributor or manufacturer.