Dorman 902-852XD Engine Coolant Thermostat Housing Assembly

Thermostat Housing Assembly Overview

This Dorman engine coolant thermostat housing assembly, part number 902-852XD, is built for select Dodge, Jeep applications where the original plastic housing can crack, warp, or leak over time. It uses aluminum construction for added corrosion resistance and long-term cooling system protection.

Key Features

• Aluminum housing for improved durability versus plastic OE designs
• OE FIX replacement for the thermostat housing assembly
• Includes a gasket seal for proper sealing at installation
• Bleeder hole and barbed hose connections for cooling system service
• Standard replacement grade with bolt-on mounting design

Detailed Description

The Dorman 902-852XD thermostat housing assembly is engineered as a direct replacement for the original coolant housing used on select Jeep Wrangler, Jeep Grand Cherokee, Jeep Wrangler JK, and Dodge Durango models. The aluminum body helps resist the brittleness and cracking commonly seen in plastic housings, while the corrosion-resistant design supports reliable coolant flow and sealing. This part number 902-852XD is a practical solution when the factory housing shows signs of leakage or heat-related wear. It cross-references Motorad 823-203 for the same application.

What It Is Used For

• Coolant leaks from a cracked or warped thermostat housing
• Seepage around the bleeder valve area
• Cooling system issues caused by a deteriorated housing seal
• Heat-related failure of the original plastic housing
• Replacement of a worn thermostat housing assembly on Jeep and Dodge SUVs

Installation Notes and Tips

Fits 2018 Jeep Wrangler JK, N/A; Fits 2012-2017 Jeep Wrangler, N/A; Fits 2011-2015 Dodge Durango, N/A; Fits 2011-2015 Jeep Grand Cherokee, N/A. Verify hose routing, mounting hole alignment, and gasket seating before tightening. The housing uses a bolt-on design and includes a gasket seal, but mounting hardware is not stated as included.

Quality Assurance

Dorman OE FIX parts are designed to address common failure points in original equipment components with upgraded materials and construction. Part number 902-852XD is built as a standard replacement for the listed applications.