Dorman 902-1007 Engine Coolant Thermostat Housing

Engine Coolant Thermostat Housing

Dorman 902-1007 is a replacement engine coolant thermostat housing for specified Ford and Mazda applications. It is built from metal with a gray finish and a gasket or seal included, giving you a direct-fit service part for cooling system repairs on vehicles such as the Ford Ranger, Ford Explorer, Ford Aerostar, Mazda B4000, and Mazda Navajo.

This thermostat housing is engineered to match the fit and durability of the original housing and is made to handle repeated temperature swings in the cooling system. Part number 902-1007 also cross-references ACI 84883 for the same application.

• Metal thermostat housing with gray finish
• Outlet port diameter: 1.25 in.
• Gasket or seal included
• Two mounting holes with 0.313 in. diameter
• 180-degree housing neck angle
• No bleeder valve, bolts, or thermostat included
• O-rings not required

Fitment Details

• Fits 1990-2000 Ford Ranger, N/A; 35 mm Diameter; Cover
• Fits 1994-2000 Mazda B4000, N/A; Engine coolant thermostat housing for cooling system.
• Fits 1990-1997 Ford Aerostar, N/A; Engine coolant thermostat housing for cooling system.
• Fits 1991-1996 Ford Explorer, N/A; 35 mm Diameter; Cover
• Fits 1991-1994 Mazda Navajo, N/A; Engine coolant thermostat housing for cooling system.

What It Helps Repair

• Coolant leaks at the thermostat housing
• Cracked or warped housing surfaces
• Improper thermostat sealing at the cooling system outlet
• Corrosion-related housing damage
• Cooling system service on Ford Ranger, Ford Explorer, Ford Aerostar, Mazda B4000, and Mazda Navajo models

Installation Notes

Verify outlet diameter, mounting hole spacing, and housing neck angle before installation. Clean the mating surface thoroughly and transfer the thermostat only if the vehicle setup requires it, since the thermostat is not included. Confirm that the gasket or seal seats evenly and that the cooling system is refilled and bled according to the vehicle service procedure.

Quality Assurance

Dorman designs this replacement thermostat housing to match the stock part’s fit and durability on listed vehicles. The metal construction is selected to withstand extreme temperature changes and support long service life in the cooling system.