Buy 2012 Subaru STI Sport SEDAN Engine Coolant Reservoir. Tank Water. Engine Coolant Expansion Tank A Expansion, Cause, Cooling - OEM Subaru Part # 21132AA140

A Container that holds Engine Coolant.

TANK ASSEMBLY-WATER Engine Coolant Reservoir

Fits STI

Engine Coolant Expansion Tank
A failed expansion tank can cause the cooling system in your Subaru to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.