Dorman 902-1017 Engine Coolant Thermostat Housing

Engine Coolant Thermostat Housing for Classic GM and Jeep Applications

Dorman 902-1017 is a replacement engine coolant thermostat housing built to match the fit and durability of the original housing on specified vehicles. Its metal construction and natural finish support reliable cooling system service on classic applications such as Pontiac Firebird, Pontiac LeMans, Chevrolet Camaro, and Jeep CJ7.

Designed for vehicles that need a direct-fit thermostat housing replacement, this part helps restore proper coolant routing at the engine outlet. The included gasket simplifies sealing at the housing-to-engine interface, while the 180-degree neck angle and 1.5-inch outlet port diameter support OE-style fitment.

Key Features

• Metal thermostat housing for cooling system service
• Natural finish
• 1.5-inch outlet port diameter
• Gasket included
• 2 mounting holes with 0.313-inch diameter
• 180-degree housing neck angle
• No thermostat included
• No bleeder valve
• Bolts not included

Detailed Description

Dorman 902-1017 is engineered as a replacement engine coolant thermostat housing for specified GM and Jeep vehicles. It is built to match the stock housing’s fit and durability, with metal construction chosen to handle repeated temperature swings in the cooling system. This makes it a practical service part for vehicles that need a thermostat housing replacement without changing the original cooling layout.

Compatible With applications include 1971-1986 Pontiac Firebird, 1971-1980 Pontiac Grand Prix, 1980-1982 Jeep CJ7, and 1982-1986 Chevrolet Camaro. This part cross-references Four Seasons (e.g., 84844) for the same application. The Dorman 902-1017 housing is also listed across additional classic platforms such as Pontiac LeMans, Buick Century, and Chevrolet S10, depending on engine and cooling system configuration.

Common Problems This Part Can Address

• Coolant leaks at the thermostat housing
• Warped or corroded original housing surfaces
• Damaged gasket sealing area
• Improper coolant flow at the engine outlet
• Service issues caused by a cracked or deteriorated housing

Installation Notes and Tips

Verify engine-specific fitment before installation, since this housing is listed across multiple makes and models with different cooling system configurations. Clean the mating surfaces thoroughly before installing the included gasket, and confirm the outlet port diameter and neck angle match the original part. Because bolts are not included, reuse or source the correct fasteners for the application. The thermostat is not included, so transfer or replace it separately as needed.

Quality Assurance

Dorman designs this replacement thermostat housing to match the fit and durability of the stock part on specified vehicles and to withstand extreme temperature changes for extended service life. Part number 902-1017 is built for direct cooling system service on classic GM and Jeep applications.