Dorman 902-3021 Engine Coolant Thermostat Housing

Reliable Engine Coolant Thermostat Housing for Chrysler, Dodge, Jeep

The Dorman 902-3021 engine coolant thermostat housing is designed to provide a durable and precise fit for select Chrysler, Dodge, and Jeep models. Engineered from metal with a black finish, this thermostat housing ensures reliable performance and long-lasting service.

• Constructed from durable metal material for strength and heat resistance
• Includes a gasket for a secure, leak-free seal
• Outlet port diameter of 1.25 inches for proper coolant flow
• Two mounting holes with 0.313-inch diameter for secure installation
• 90-degree housing neck angle to match OEM specifications
• Compatible with Chrysler Caravan, Dodge Voyager, Jeep Liberty, Wrangler, and TJ models
• Thermostat not included; housing only

Product Details and Specifications

This Dorman engine coolant thermostat housing (part number 902-3021) is crafted from metal to withstand the high temperatures and pressures within the cooling system. The black finish provides corrosion resistance, helping to extend the life of the component. The housing features a 1.25-inch outlet port diameter and a 90-degree neck angle, designed to match the original equipment manufacturer (OEM) specifications for a precise fit. Two mounting holes, each with a diameter of 0.313 inches, allow for secure attachment to the engine block. The package includes the thermostat housing and a gasket to ensure a tight seal, preventing coolant leaks. This part does not include bolts or a thermostat, and no O-rings are required for installation.

Compatible Vehicles and Applications

This thermostat housing is compatible with a range of Chrysler, Dodge, and Jeep vehicles, including the Chrysler Caravan, Dodge Voyager, Jeep Liberty, Jeep Wrangler, and Jeep TJ models. It is an ideal replacement part for those seeking a reliable and OEM-spec component for their cooling system maintenance or repair.

Common Issues Addressed by This Thermostat Housing

• Coolant leaks caused by cracked or damaged thermostat housing
• Overheating issues due to improper coolant flow
• Corrosion or wear compromising the housing integrity
• Failed seals leading to coolant loss
• Replacement of worn or broken OEM thermostat housing

Installation Notes and Tips

When installing the Dorman 902-3021 thermostat housing, ensure the engine is cool before beginning work. Use the included gasket to create a proper seal and prevent leaks. Verify that the mounting holes align correctly with the engine block and use appropriate bolts (not included) to secure the housing. Since the thermostat is not included, inspect the existing thermostat and replace it if necessary during installation. Proper torque specifications should be followed to avoid damage to the housing or engine components.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The 902-3021 thermostat housing undergoes rigorous quality control to ensure fit and function. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Consult product documentation for exact warranty terms.