Dorman 902-5171 Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing Assembly

Dorman 902-5171 is an engine coolant thermostat housing assembly built for 2001-2002 Nissan Pathfinder applications with an integrated cover. It combines aluminum and steel construction with a gasket and thermostat to match the original housing layout and maintain proper coolant flow control.

For buyers searching for a 2001-2002 Nissan Pathfinder thermostat housing assembly, Dorman 902-5171 provides a direct-fit replacement solution for the factory-style cooling system setup.

Key Features

• Direct replacement engine coolant thermostat housing assembly
• Aluminum and steel construction with natural finish
• Includes gasket and thermostat
• 170 degree F thermostat opening temperature
• Three mounting holes and one outlet port
• Designed for 2001-2002 Nissan Pathfinder with integrated cover
• Dorman 902-5171 for OE-style fit and dimensional match

Detailed Product Overview

This thermostat housing assembly is engineered to match the fit and durability of the original housing on specified vehicles. The aluminum and steel design is built to handle repeated temperature swings in the cooling system, while the included thermostat and gasket support a complete housing replacement. Dorman 902-5171 is a practical choice when servicing a 2001-2002 Nissan Pathfinder cooling system and replacing a worn or damaged thermostat housing.

This part cross-references Motorad 343-170 for the same application.

Common Problems This Part Can Address

• Coolant leaks at the thermostat housing
• Cracked or warped housing surfaces
• Improper thermostat operation from a worn housing assembly
• Cooling system service needs on a 2001-2002 Nissan Pathfinder
• Loss of sealing at the housing-to-engine interface

Installation Notes and Tips

Verify the housing, gasket surface, and thermostat orientation before installation. Clean all mating surfaces thoroughly and confirm the bolt-hole pattern and outlet port alignment match the original setup. For 2001-2002 Nissan Pathfinder service, inspect adjacent coolant hoses and clamps while the housing is removed to help prevent repeat leaks. Dorman 902-5171 uses a 170 degree F thermostat opening temperature, so confirm the replacement specification matches the vehicle requirement before final assembly.

Quality Assurance

Dorman designs this replacement thermostat housing assembly to match stock fit and durability expectations for the listed application. The housing is built to withstand extreme temperature changes for extended service life.