Dorman 902-3010 Engine Coolant Thermostat Housing

Engine Coolant Thermostat Housing for Jeep Cooling Systems

Dorman 902-3010 is a replacement engine coolant thermostat housing for select Jeep applications. It matches the stock housing’s fit and durability requirements while using a metal construction built to handle repeated temperature swings in the cooling system.

Key Features

• Metal housing with a natural finish
• Outlet port diameter: 1.5 in.
• Gasket or seal included for the housing interface
• Air vent (bleeder valve) included
• Two mounting holes with 0.313 in. diameter
• Housing neck angle: 180 degrees
• Package contents: thermostat housing with gasket
• Thermostat not included

Detailed Description

This Dorman thermostat housing, part number 902-3010, is built for Jeep Cherokee, Comanche, Wagoneer, Wrangler, J10, CJ7, Grand Wagoneer, Scrambler, and CJ5 cooling system service across model years 1981 through 1990. It is a direct replacement-style engine coolant thermostat housing designed to match the original mounting and outlet layout on the specified vehicles. The metal body and integrated bleeder valve support reliable coolant routing and air removal during service. This part cross-references DENSO Auto Parts 5347 and Motorad 4802KT for the same application.

Common Repair Uses

• Cracked or corroded thermostat housing on Jeep cooling systems
• Coolant leaks at the housing-to-engine sealing surface
• Air trapped in the cooling system after thermostat service
• Improper coolant flow caused by a damaged outlet neck
• Replacement of a worn housing during cooling system maintenance

Installation Notes and Tips

Verify the outlet port diameter, mounting hole spacing, and housing neck angle before installation. Transfer or install the thermostat separately, since it is not included. Clean the mating surfaces thoroughly and use the included gasket to help achieve a proper seal. Confirm the bleeder valve orientation during assembly so trapped air can be purged from the system.

Quality Assurance

Dorman engineers this replacement thermostat housing to match the fit and durability of the original housing on the listed Jeep applications. It is built to withstand extreme temperature changes for extended service life. Compatible with 1981-1990 Jeep Cherokee, 1986-1990 Jeep Comanche, 1981-1990 Jeep Wagoneer, 1987-1990 Jeep Wrangler, 1981-1987 Jeep J10, 1981-1986 Jeep CJ7, 1984-1986 Jeep Grand Wagoneer, 1981-1985 Jeep Scrambler, and 1981-1983 Jeep CJ5. Part number 902-3010 is a direct-fit replacement choice for Jeep cooling system repair.