Motorad 2094-170 Engine Coolant Thermostat

Motorad High Flow 170F Thermostat

The Motorad High Flow 2094-170 engine coolant thermostat is built for Subaru cooling systems that need a precise 170 degree F opening temperature. It uses OEM-quality materials and OE-supplier manufacturing processes to deliver consistent coolant control in demanding driving conditions.

For Subaru Legacy, Outback, WRX STI, WRX, Impreza, Forester, Tribeca, B9 Tribeca, and Baja applications, this thermostat is designed with a copper case and wax compound for quick reaction to coolant temperature changes. The offset design, air relief valve, and OEM-style seals where applicable support proper system operation.

Key Features

• 170 degree F thermostat opening temperature
• High Flow design for Subaru cooling system applications
• Copper case and wax compound for rapid temperature response
• Offset design with air relief valve
• Jiggle pin weep hole included
• OEM-quality materials and OE-supplier manufacturing standards
• Motorad part number 2094-170

Product Details

The Motorad High Flow line focuses on thermostat performance for vehicles that need stable coolant regulation under load. This 2094-170 thermostat is engineered to meet OEM specifications and processes, helping maintain the correct operating temperature in Subaru engines. It is a direct-fit style replacement for many Subaru Legacy, Outback, WRX STI, WRX, Impreza, Forester, Tribeca, B9 Tribeca, and Baja model years listed in the fitment data.

This part cross-references Four Seasons 65947 for the same application. The Motorad 2094-170 is also referenced by Walker Exhaust 15147 and interchange number 92094170.

What It Helps Address

• Engine running cooler or warmer than the specified thermostat temperature
• Delayed coolant circulation after cold start
• Temperature fluctuation during stop-and-go driving
• Cooling system service on Subaru Legacy, Outback, WRX STI, WRX, Impreza, Forester, Tribeca, B9 Tribeca, and Baja models
• Replacement of a worn thermostat with a 170F OE-spec unit

Installation Notes

Verify the thermostat housing style and OE temperature specification before installation. This thermostat does not include a gasket or seal, and no installation tool is included. The jiggle pin weep hole should be oriented according to the vehicle service procedure so trapped air can escape during filling and bleeding.

Because Subaru cooling systems are sensitive to air pockets and thermostat orientation, follow the factory bleed procedure and inspect the sealing surfaces before reassembly. Confirm the part number 2094-170 against the vehicle’s original thermostat specification before installation.

Quality Assurance

Motorad manufactures this thermostat with OEM-quality materials and safety standards as an OE supplier. It is built to OEM specifications and processes for consistent fit and temperature control in demanding automotive cooling systems.