About this part
What it does. Aisin Engine Coolant Thermostat Assembly Aisin 170-THF-008 is part of the cooling system that carries engine heat away and holds the engine at operating temperature.
Symptoms that point to this part
- Temperature gauge climbing
- Coolant puddles under the car
- Heater blowing cold
- Sweet coolant smell
Fitment. Catalogued as fitting 2020–2023 Subaru Impreza, 2019–2023 Subaru Crosstrek. Engine, sub-model and trim can narrow fitment further, so check those attributes on the listing before ordering.