Dorman 902-3038 Engine Coolant Thermostat Housing

Engine Coolant Thermostat Housing for Jeep Wrangler

Dorman 902-3038 is a replacement engine coolant thermostat housing built for specified Jeep Wrangler applications. It is shaped to match the original housing’s fit and durability requirements, with a plastic black construction that handles repeated temperature swings in the cooling system.

• Direct replacement thermostat housing for the engine cooling system
• Plastic housing with black finish
• Outlet port diameter: 1.95 in.; inlet port diameter: 1.295 in.
• 30-degree housing neck angle for application-specific routing
• Two mounting holes with 2.5 in. center-to-center spacing
• Flange thickness: 0.6 in.; housing height: 2.25 in.
• Thermostat, gasket/seal, O-rings, bleeder valve, and bolts are not included

Fitment Details

Fits 2007-2011 Jeep Wrangler, N/A. This Dorman thermostat housing 902-3038 is listed for the engine coolant thermostat housing location in the cooling system. For buyers searching for a Jeep Wrangler thermostat housing replacement or Dorman 902-3038 coolant housing, this part matches the specified vehicle application.

This part cross-references Gates CO34826 and Motorad CH5357 for the same application.

How It Works

The thermostat housing routes coolant through the engine’s thermostat area and helps maintain a sealed connection in the cooling circuit. Dorman engineered this housing to match the stock part’s fit and to withstand extreme temperature changes, which helps preserve service life in daily driving and heat-cycle conditions. It is a practical replacement for a cracked, warped, or leaking Jeep Wrangler thermostat housing.

Common Problems It Can Address

• Coolant leaks from a damaged thermostat housing
• Cracks in aging plastic cooling-system components
• Warped sealing surfaces that affect coolant containment
• Improper fit after a failed previous replacement
• Cooling-system service needs on 2007-2011 Jeep Wrangler models

Installation Notes

Verify the inlet and outlet port sizes, mounting-hole spacing, and 30-degree neck angle before installation. Transfer or source the thermostat, gasket or seal, O-rings, and bolts separately, since they are not included. Clean the mating surfaces thoroughly and inspect adjacent cooling-system components before reassembly. Confirm the vehicle application by year and model before ordering this Jeep Wrangler thermostat housing.

Quality Assurance

Dorman designs replacement cooling components to match original fit and durability requirements for specified vehicles. Part number 902-3038 is built as a service replacement for the listed Jeep Wrangler applications and is intended to meet the demands of engine coolant temperature cycling.