Dorman 902-5953 Engine Coolant Thermostat Housing Assembly

Engine Coolant Thermostat Housing Assembly

Dorman 902-5953 is a replacement engine coolant thermostat housing assembly for select Acura applications. It is built with a plastic housing, black finish, integrated thermostat, and gasket to match the original housing layout and help maintain proper coolant flow control.

Compatible With 2015-2020 Acura TLX, 2016-2020 Acura MDX, and 2018-2020 Acura RLX models with an engine coolant thermostat housing assembly with integrated cover.

• Plastic housing with black finish
• Integrated thermostat included
• Gasket or seal included
• Bleeder hole included for service bleeding
• 170 degree F thermostat opening temperature
• Three mounting holes and one outlet port
• OE-style replacement for the original housing assembly

Fitment and Cross-Reference

This Dorman 902-5953 thermostat housing assembly cross-references Dorman OE Solutions 951-172 and Honda/Acura 193155J2A01 for the same application.

Fits 2015-2020 Acura TLX, N/A, engine coolant thermostat housing assembly with integrated cover. Fits 2016-2020 Acura MDX, N/A, engine coolant thermostat housing assembly with integrated cover. Fits 2018-2020 Acura RLX, N/A, engine coolant thermostat housing assembly with integrated cover.

What This Part Helps Address

• Coolant leaks at a cracked or warped thermostat housing
• Temperature control issues caused by a worn thermostat assembly
• Service problems related to a damaged housing cover or sealing surface
• Bleeding concerns after cooling system service
• Fitment issues from using a non-matching replacement housing

Installation Notes

Verify the engine application and housing style before installation. Inspect the mating surface, replace any damaged coolant hoses or clamps as needed, and follow the vehicle service procedure for coolant refill and air bleeding. The assembly uses three mounting holes and includes a gasket; mounting hardware is not included.

Quality Assurance

Dorman designs this thermostat housing assembly to match the fit and durability of the original part and to withstand repeated temperature changes for extended service life.