Buy 2020 Subaru STI Hose Pre Heater. Heater Hose A heater hose transfers heat from your engine’s Make, Cooling - OEM Subaru Part # 21204AB420

HOSE ASSEMBLY-PRE HEATER Engine Coolant Hose

Fits Ascent, Legacy, Outback, WRX

Heater Hose
A heater hose transfers heat from your engine’s cooling system to your vehicle’s heater. If the hose is leaking, ruptured, or appears to be on the verge of failure, bring your 2020 Subaru STI to our Subaru service department for repair.