Dorman 902-1012 Engine Coolant Thermostat Housing - Upper

Engine Coolant Thermostat Housing for Ford Cooling Systems

Dorman 902-1012 is a replacement engine coolant thermostat housing built to match the fit and durability of the original housing on select Ford applications. It is made from metal with a black finish and is engineered to handle repeated temperature swings in the cooling system.

Compatible with 2001 Ford Explorer, upper, and select 1990-2000 Ford Ranger and 1991-2000 Ford Explorer applications with a 40 mm diameter cover, this thermostat housing supports a direct repair for worn or damaged coolant outlet housings. The Dorman 902-1012 part number is also referenced in cross applications for the same use case.

Key Features

• Metal construction for cooling-system durability
• Black finish for a clean OE-style appearance
• 1.5 in. outlet port diameter
• Gasket or seal included
• 3 mounting holes with 0.313 in. mounting hole diameter
• 180-degree housing neck angle
• No thermostat included
• No bleeder valve and no bolts included

Detailed Description

This engine coolant thermostat housing is designed for Ford Explorer and Ford Ranger cooling system service where the original housing has cracked, warped, or corroded. Dorman 902-1012 follows the stock housing form factor to support proper coolant routing and a secure seal at the thermostat location. It cross-references Dorman - Conduct-Tite 85668 and Valeo 815668 for the same application.

Use this housing when servicing a Ford Explorer upper thermostat housing or a 40 mm diameter cover application on Ford Explorer and Ford Ranger models. The Dorman 902-1012 helps restore the connection point between the engine and cooling circuit while maintaining the original mounting layout.

What It Is Used For

• Replacing a cracked thermostat housing on a Ford Explorer
• Repairing coolant leaks at the thermostat housing flange
• Restoring a damaged upper housing on 2001 Ford Explorer
• Addressing corrosion or warping in Ford Ranger and Explorer cooling systems
• Correcting sealing issues at the coolant outlet connection

Installation Notes and Tips

Verify the outlet port diameter, mounting hole count, and housing neck angle before installation. Confirm the vehicle application against the listed fitment for 2001 Ford Explorer, upper, and 1990-2000 Ford Ranger or 1991-2000 Ford Explorer 40 mm diameter cover applications. Transfer the thermostat only if it is serviceable, since the thermostat is not included.

Quality Assurance

Dorman engineers this replacement housing to match the fit and durability of the stock part and to withstand extreme temperature changes for extended service life. It is built as a direct replacement for specified Ford cooling system applications.