Motorad 432-170 Engine Coolant Thermostat Housing Assembly - Upper

Integrated Thermostat Housing for OE Fit

Motorad 432-170 is an integrated housing thermostat assembly built for precise coolant temperature control in select Honda and Acura applications. It combines the thermostat, housing, and seal in one OE-style service part for a direct replacement on vehicles such as the Honda Civic, Honda CR-V, Acura RSX, and Acura CSX.

The Motorad Integrated Housing Thermostat line focuses on OE specifications and materials, with a copper case and wax compound for quick response to coolant temperature changes. This 170 degree F unit includes a black plastic housing, stainless steel components, a rubber seal, a bleeder hole, and a jiggle pin for air relief where applicable.

• Part number: 432-170
• Integrated engine coolant thermostat housing assembly
• 170 degree F opening temperature
• Bleeder hole and jiggle pin included
• Rubber gasket/seal included
• 3 bolt holes, 1 outlet port
• Outlet diameter: 1.27 in
• Black housing with plastic, stainless steel, and copper construction

Product Details

Motorad’s Integrated Housing Thermostat product line is engineered as an OE supplier solution for cooling systems that require accurate temperature regulation and a clean, service-ready housing design. The 432-170 uses OEM-style seals and offset design details where applicable, helping maintain proper coolant flow and sealing integrity in the original application. This part cross-references Dorman OE Solutions 902-5131 for the same application.

What This Part Helps Address

• Engine running too cool or too hot due to thermostat wear
• Coolant leaks at the thermostat housing or seal surface
• Slow thermostat response during temperature changes
• Air trapped in the cooling system after service
• Fitment issues when replacing a worn integrated housing assembly

Installation Notes

Fits 2006 Acura CSX, N/A. Fits 2002-2006 Acura RSX, N/A. Fits 2002-2006 Honda CR-V, N/A. Fits 2003-2005 Honda Civic, N/A. Fits 2002 Honda Civic, Upper. Verify the engine cooling system configuration, outlet diameter, and bolt-hole layout before installation. Transfer or replace the seal as required by the application, and bleed the cooling system carefully after service to remove trapped air.

Quality Assurance

Manufactured to OEM quality materials and safety standards by an OE supplier, with OEM specifications and processes used in production. The copper case and wax compound are selected for responsive temperature control in demanding automotive cooling systems.