Motorad CH6131 Engine Coolant Thermostat Housing - Engine Block, Lower or Water Pump

Engine Coolant Thermostat Housing for Subaru and Toyota

Motorad CH6131 is an engine coolant thermostat housing built for OE-style replacement on select Subaru, Toyota, and Scion applications. It uses a plastic housing with a black finish, includes a gasket or seal, and is thermal shock validated and 100% leak tested for cooling-system service.

Key Features

• Engine coolant thermostat housing for cooling-system repair
• Plastic construction with black finish
• Outlet port diameter: 1.26 in
• Gasket or seal included
• Three mounting holes for direct-fit installation
• Manufactured to OEM quality standards by an OE supplier
• Meets or exceeds OEM standards

Product Details

The Motorad CH6131 thermostat housing is made for vehicles that use an engine coolant water outlet with housing or related lower/water pump cooling-system mounting locations. It is a direct replacement for select Subaru BRZ, Forester, Impreza, Legacy, Outback, WRX, Crosstrek, XV, and Toyota GR86, 86, plus Scion FR-S applications. This part cross-references Dorman OE Solutions 902-5856 and Gates CO34892 for the same application. Motorad CH6131 is built to support proper coolant routing and sealing at the thermostat housing connection point.

What This Part Helps Address

• Coolant leaks at the thermostat housing or water outlet
• Cracked or warped plastic housing from heat cycling
• Failed sealing surfaces that can trigger coolant loss
• Cooling-system service on Subaru BRZ and Toyota GR86 applications
• Replacement of a worn engine coolant water outlet with housing

Installation Notes and Fitment

• Fits 2022-2025 Subaru BRZ, N/A
• Fits 2025 Toyota GR86, Lower
• Fits 2022-2024 Toyota GR86, Water Pump
• Fits 2016-2020 Subaru BRZ, N/A
• Fits 2020 Toyota 86, N/A
• Fits 2019 Subaru Legacy, Engine Block
• Fits 2016-2019 Subaru Outback, N/A
• Fits 2013-2014 Subaru Outback, N/A
• Fits 2017-2019 Toyota 86, N/A
• Fits 2016-2018 Subaru Forester, N/A
• Fits 2011-2013 Subaru Forester, N/A
• Fits 2016-2018 Subaru Legacy, N/A
• Fits 2013-2014 Subaru Legacy, N/A
• Fits 2016-2017 Subaru Crosstrek, N/A
• Fits 2013-2016 Scion FR-S, N/A
• Fits 2016 Subaru Impreza, Lower
• Fits 2012-2016 Subaru WRX, N/A
• Fits 2013-2016 Subaru XV, N/A
• Fits 2013-2015 Subaru BRZ, N/A
• Fits 2014-2015 Subaru Forester, Engine Block
• Fits 2012-2015 Subaru Impreza, N/A
• Fits 2015 Subaru Legacy, N/A
• Fits 2015 Subaru Outback, N/A
• Fits 2013-2015 Subaru XV Crosstrek, N/A

Confirm the original housing style, outlet diameter, and mounting-hole layout before installation. The included gasket or seal supports proper sealing at the mating surface; bolts are not included.

Quality Assurance

Motorad manufactures this housing to OEM quality standards using proprietary material selected for demanding automotive cooling systems. It is thermal shock validated and 100% leak tested to help verify sealing performance before installation.