Dorman 902-306 Engine Coolant Thermostat Housing

Overview of Dorman Engine Coolant Thermostat Housing 902-306

The Dorman 902-306 engine coolant thermostat housing is designed for reliable cooling system performance in select Dodge and Jeep vehicles. Crafted from durable aluminum with a silver finish, this thermostat housing ensures proper coolant flow and engine temperature regulation.

• Constructed from corrosion-resistant aluminum material
• Silver color for corrosion protection and durability
• Outlet port diameter of 1.511 inches for precise fitment
• Includes gasket or seal for leak prevention
• Two mounting holes with 0.35-inch diameter for secure installation
• Housing neck angle of 95 degrees for correct coolant routing
• Package contains thermostat housing only; thermostat and bolts not included

Detailed Product Description

The Dorman 902-306 thermostat housing is engineered to meet the specifications required by Dodge and Jeep models such as Cherokee, Comanche, Dakota, Grand Cherokee, TJ, and Wrangler. Its aluminum construction offers strength and resistance to corrosion, which is critical for maintaining the integrity of the cooling system. The silver finish further protects the housing from environmental wear. The 1.511-inch outlet port diameter and 95-degree housing neck angle ensure compatibility with the vehicle’s cooling system design, facilitating efficient coolant flow and temperature control. This housing includes a gasket or seal to help prevent leaks during operation. Note that the thermostat and mounting bolts are not included with this part.

Compatible Vehicles and Common Applications

• Dodge Cherokee
• Dodge Comanche
• Dodge Dakota
• Jeep Grand Cherokee
• Jeep TJ
• Jeep Wrangler

This thermostat housing is commonly used to address issues such as:

• Coolant leaks around the thermostat housing
• Overheating due to faulty or damaged housing
• Corrosion or cracking in the original housing
• Improper coolant flow caused by housing deformation
• Replacement during engine cooling system maintenance

Installation Notes and Tips

When installing the Dorman 902-306 thermostat housing, ensure the gasket or seal is properly seated to prevent leaks. Use the two mounting holes with 0.35-inch diameter bolts (not included) to secure the housing firmly. Verify the housing neck angle aligns with the vehicle’s coolant routing to avoid hose stress. It is recommended to inspect the thermostat separately, as it is not included with this housing. Proper torque specifications should be followed to avoid damage.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-306 thermostat housing undergoes rigorous quality checks to ensure durability and performance in demanding automotive environments. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship.