Buy 2021 Subaru STI Hose Water. Cooling System Bypass Line If your 2021 Subaru STI has been Bypass, Coolant, Cooling - OEM Subaru Part # 99078AB291 (99078AB290)

HOSE-WATER Engine Coolant HoseEngine Coolant Overflow Hose

Fits Forester, WRX

Cooling System Bypass Line
If your 2021 Subaru STI has been either leaking coolant or overheating, you could have a faulty cooling system bypass line. Let our technicians help trace the problem and replace the faulty coolant hose with a genuine Subaru part.