Dorman 902-1998 Engine Coolant Thermostat Housing Assembly

OE Fix Thermostat Housing for Ford and Mazda

Dorman 902-1998 is an engine coolant thermostat housing assembly built to replace weak plastic OE housings with an aluminum design. It addresses common cooling-system failures caused by warping, cracking, and sealing issues, and it fits select Ford Ranger, Ford Explorer, Ford Explorer Sport Trac, and Mazda B4000 applications.

• Aluminum housing construction for improved resistance to heat-related warping
• Gasket or seal included with O-ring style sealing surface
• Three mounting holes and three outlet ports for the specified cooling-system layout
• Silver finish with regular-grade construction
• Direct replacement for select 2001-2011 Ford and Mazda trucks and SUVs

Detailed Product Overview

This Dorman thermostat housing assembly, part number 902-1998, is an OE FIX replacement that upgrades the original plastic design to metal. The aluminum housing helps maintain sealing integrity in high-temperature coolant service, making it a practical choice for drivers looking for a thermostat housing replacement for a 2004-2011 Ford Ranger, 2002-2005 Ford Explorer Sport Trac, 2001 Ford Explorer, or select Mazda B4000 models. This part cross-references 1F7415172 and 2L2Z8592BA for the same application.

What This Part Helps Address

• Coolant leaks from a cracked or warped thermostat housing
• Repeated failures caused by plastic housing distortion
• Sealing problems at the thermostat housing-to-engine connection
• Overheating concerns tied to coolant loss at the housing
• Service repeat repairs on select Ford Ranger and Mazda B4000 cooling systems

Installation Notes and Tips

Verify the inside diameter, flange dimensions, outlet port layout, and sensor style before installation. This housing includes a gasket or seal and is supplied without a thermostat. Use the correct hose routing and clamp placement for the vehicle-specific cooling system, and confirm fitment for the exact year and engine configuration listed for your Ford Explorer, Ford Ranger, or Mazda B4000.

Quality Assurance

Dorman positions this OE FIX housing as a metal upgrade over the original plastic design to reduce warping and future housing failure. Part number 902-1998 is built for direct replacement use on the listed applications and follows the original mounting and sealing layout required for service.