Dorman 902-689 Engine Coolant Thermostat Housing

Reliable Engine Coolant Thermostat Housing for Chrysler, Dodge, Jeep, and Ram

The Dorman 902-689 engine coolant thermostat housing is designed to provide a durable and precise fit for various Chrysler, Dodge, Jeep, and Ram models. Constructed from metal with a black finish, this thermostat housing ensures reliable performance in your vehicle's cooling system.

Key Features of the Dorman 902-689 Thermostat Housing

• Durable metal construction with a black coating for corrosion resistance
• Outlet port diameter of 1.875 inches for proper coolant flow
• Two mounting holes with 0.375-inch diameter for secure installation
• 90-degree housing neck angle to match OEM specifications
• Includes thermostat housing only; thermostat, gasket, bolts, and O-rings are not included

Detailed Description and Specifications

This engine coolant thermostat housing by Dorman is engineered to meet the exact fitment requirements of Chrysler, Dodge, Jeep, and Ram vehicles, including models such as the 300, 1500 Classic, 2500, 3500, 4000, Aspen, Challenger, Charger, Commander, Durango, Grand Cherokee, Grand Cherokee L, Magnum, Ram 1500, Ram 2500, and Ram 3500. The metal construction provides strength and durability under high-temperature conditions, while the black finish offers additional protection against corrosion. The housing features a 90-degree neck angle and a 1.875-inch outlet port diameter, ensuring compatibility with the vehicle’s cooling system design. With two mounting holes sized at 0.375 inches, installation is straightforward and secure. Note that this part does not include the thermostat, gasket, bolts, or O-rings, so these components must be sourced separately.

Common Applications and Issues Addressed

• Replacement of cracked or leaking thermostat housing
• Resolving coolant leaks around the thermostat area
• Preventing engine overheating due to faulty housing
• Restoring proper coolant flow in Chrysler, Dodge, Jeep, and Ram cooling systems
• Maintaining engine temperature regulation for optimal performance

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Inspect and replace the thermostat, gasket, and mounting bolts as needed since they are not included
• Clean the mounting surface thoroughly to prevent leaks
• Torque mounting bolts to manufacturer specifications to avoid damage
• Check for leaks after installation and during initial engine operation

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 902-689 thermostat housing undergoes rigorous quality control to ensure durability and reliable performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Refer to Dorman’s official warranty policy for complete information.