Dorman 902-1025 Engine Coolant Thermostat Housing

Engine Coolant Thermostat Housing for Ford Cooling Systems

Dorman 902-1025 is a replacement engine coolant thermostat housing built to match the fit and durability of the original housing on specified Ford applications. It uses a metal construction, includes a gasket, and is made to handle repeated temperature swings in the cooling system.

Compatible With 1980-1984 Ford Bronco, 1980-1984 Ford E-Series vans, and 1980-1984 Ford F-Series trucks in the listed applications, this thermostat housing supports reliable coolant routing and a secure seal at the thermostat location. The Dorman 902-1025 housing is a direct-fit service part for cooling system repair on classic Ford trucks and vans.

Key Features

• Metal thermostat housing with natural finish
• Outlet port diameter: 1.5 in.
• Air vent (bleeder valve) included for cooling system service
• Gasket included for sealing at installation
• Two mounting holes with 0.313 in. diameter
• 180-degree housing neck angle
• Thermostat not included
• O-rings not required

Detailed Product Overview

This engine coolant thermostat housing is engineered for Ford cooling system service where the original housing has corroded, cracked, or no longer seals properly. The metal body is built for durability in high-heat environments, while the integrated bleeder valve helps during coolant fill and air removal. Dorman 902-1025 is a practical OE-style replacement for vehicles such as the Ford Bronco, Ford F-150, Ford F-250, and Ford F-350 in the listed model years.

This part cross-references Motorad 4913KT and NGK 7168 for the same application.

What It Helps Fix

• Coolant leaks at the thermostat housing
• Cracked or warped original housing surfaces
• Improper thermostat sealing at the coolant outlet
• Air trapped in the cooling system after service
• Heat-related housing deterioration on older Ford engines

Installation Notes and Tips

Verify the outlet port size, mounting hole layout, and neck angle before installation. Clean the mating surface thoroughly, replace the gasket supplied with the housing, and inspect the thermostat and adjacent cooling components while the system is open. Fill and bleed the cooling system carefully using the built-in air vent to reduce trapped air.

Quality Assurance

Dorman designs this replacement thermostat housing to match stock fit and durability on specified vehicles and to withstand extreme temperature changes for extended service life.