Dorman 902-106 Engine Coolant Thermostat Housing

Dorman 902-106 Engine Coolant Thermostat Housing

Dorman 902-106 is a replacement engine coolant thermostat housing built to match the fit and durability of the original housing on specified vehicles. It is made from black plastic and includes a gasket or seal, O-rings, and an air vent (bleeder valve) for cooling system service on select Buick, Chevrolet, Oldsmobile, and Pontiac models.

Key Features

• Replacement engine coolant thermostat housing for the cooling system
• Black plastic construction for OE-style fit and function
• Outlet port diameter: 1.293 in.
• Housing neck angle: 75 degrees
• Includes gasket or seal, O-rings, and air bleeder pipe gasket
• Air vent (bleeder valve) included for coolant bleeding during service
• Two mounting holes with 0.353 in. diameter
• Thermostat not included

Detailed Description

This Dorman thermostat housing, part number 902-106, is engineered for direct replacement use on 1994-1995 Buick Skylark, 1995 Chevrolet Cavalier, 1994-1995 Oldsmobile Achieva, 1994-1995 Pontiac Grand Am, and 1995 Pontiac Sunfire. It is designed to match the original housing’s fit and durability while handling repeated temperature swings in the engine cooling system. The housing’s plastic construction, integrated bleeder valve, and included sealing components support a clean service replacement on these applications.

This part cross-references Dayco 85016 for the same application.

Common Repair Uses

• Replacing a cracked or warped thermostat housing
• Addressing coolant leaks at the housing or seal surface
• Restoring proper coolant routing at the engine outlet
• Servicing a bleeder-equipped cooling system during thermostat housing replacement
• Repairing cooling system issues on Buick Skylark, Chevrolet Cavalier, and Pontiac Grand Am applications

Installation Notes

Verify the outlet port diameter, mounting hole layout, and 75-degree neck angle before installation. Clean the mating surfaces thoroughly and inspect the cooling system for contamination or damage that could affect sealing. This Dorman 902-106 thermostat housing does not include the thermostat, so transfer or replace the thermostat as needed for the vehicle service procedure.

Quality Assurance

Dorman designs this replacement housing to match the stock part’s fit and durability on the listed vehicles and to withstand extreme temperature changes for extended service life. Confirm vehicle application by year, make, and model before ordering.