Engine Coolant Thermostat. Thermostat and Gasket.

Part Number: 21210AA221
Supersession(s): 21210AA220
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An Engine Coolant Thermostat Only. Housing not included.

THERMO AND GASKET ASSEMBLY Engine Coolant Thermostat

Fits Ascent, Crosstrek, Forester, Impreza, Legacy, Outback, WRX

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This product fits 192 vehicle variants.
Subaru: 7 models, 192 variants between 2014 and 2025.
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