Dorman 902-5834 Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing Assembly

Dorman 902-5834 is a replacement engine coolant thermostat housing assembly for select Acura applications. It is built to match the original housing’s fit and durability, with a plastic black housing, integrated thermostat, and gasket included for a direct repair on the specified vehicles.

Key Features

• Replacement thermostat housing assembly for engine cooling system service
• Plastic black housing designed for stock-style fit and function
• Thermostat included with a 172 degree opening temperature
• Gasket included for sealing at the housing interface
• Three mounting holes and two outlet ports
• Engineered to handle repeated temperature swings for longer service life

Detailed Description

This Dorman 902-5834 thermostat housing assembly is a direct-fit cooling system component for 2014-2017 Acura RLX and 2014-2015 Acura MDX models. It combines the housing, thermostat, and gasket in one service part, helping restore proper coolant flow control and stable engine operating temperature. This part cross-references Motorad 751-172 for the same application.

Use this assembly when servicing a leaking, warped, or temperature-affected thermostat housing on Acura RLX or Acura MDX vehicles. The regular-grade plastic construction and OE-style dimensions support a clean replacement where the original housing has degraded from heat cycling.

Common Repair Uses

• Coolant leaks at the thermostat housing
• Cracked or warped plastic housing surfaces
• Thermostat sticking open or closed
• Engine temperature fluctuations
• Sealing issues at the housing gasket

Installation Notes and Tips

Verify the engine coolant system is fully cooled before removal. Inspect the mating surface, hoses, and fasteners for wear or damage before installing the new housing. Mounting hardware is not included, so reuse or replace fasteners as needed based on the vehicle condition. Confirm the thermostat housing orientation and gasket placement before tightening to specification.

Quality Assurance

Dorman designs this replacement housing to match the fit and durability of the original part on the listed Acura RLX and Acura MDX applications. The assembly is built for regular service use and is intended to withstand extreme temperature changes that can shorten the life of cooling system components.