Dorman 902-1999 Engine Coolant Thermostat Housing Assembly

Reliable Engine Coolant Thermostat Housing Assembly for Ford and Mercury

The Dorman 902-1999 Engine Coolant Thermostat Housing Assembly is designed to provide a durable and precise fit for Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer models. Crafted from aluminum with a silver finish, this thermostat housing assembly ensures efficient engine cooling system performance.

• Constructed from corrosion-resistant aluminum material
• Includes a high-quality O-ring gasket for a secure seal
• Compatible with Ford Explorer, Explorer Sport Trac, and Mercury Mountaineer
• Features three outlet ports and three mounting holes for proper fitment
• Package contains 1 thermostat housing, 2 clamps, and 1 hose
• Thermostat opening temperature set at 120 degrees (thermostat not included)

Durable Design and Precise Fitment Details

This Dorman thermostat housing assembly (part number 902-1999) is engineered with a 1.32-inch inside diameter and a flange measuring 2.36 inches in length, 2.79 inches in width, and 2.79 inches in thickness. The three mounting holes with a bolt hole center-to-center distance of 2.43 inches ensure a secure and accurate installation. The included O-ring gasket provides a reliable seal to prevent coolant leaks, maintaining optimal engine temperature regulation.

Compatible Vehicles and Application

This thermostat housing assembly is specifically compatible with the following vehicles:

• Ford Explorer
• Ford Explorer Sport Trac
• Mercury Mountaineer

It is designed to replace the original thermostat housing in these models, supporting the engine cooling system by housing the thermostat and directing coolant flow.

Common Issues Addressed by This Thermostat Housing

• Coolant leaks caused by cracked or damaged thermostat housing
• Overheating due to faulty or worn housing affecting thermostat operation
• Corrosion-related failures in the cooling system housing
• Improper coolant flow resulting from damaged outlet ports
• Loose or ineffective seals leading to coolant loss

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Use the included O-ring gasket to guarantee a proper seal
• Verify the three mounting holes align correctly with the vehicle’s mounting points
• Replace clamps and hose as needed, included in the package for convenience
• Thermostat is not included; inspect and replace the thermostat separately if necessary

Quality Assurance and Warranty

Dorman manufactures this thermostat housing assembly to meet or exceed OEM specifications, using durable aluminum to resist corrosion and wear. The product includes a gasket for a secure seal and is backed by Dorman’s standard warranty coverage, ensuring reliability and performance for your Ford Explorer, Explorer Sport Trac, or Mercury Mountaineer.