Buy OEM 2021 Subaru Part # 99078AB570. Engine Coolant Overflow Hose. Hose Water (Back). Cooling System Bypass Line If your 2021 Subaru has been either leaking coolant

A Coolant Hose that feeds Coolant to The Overflow or Recovery Bottle in a Closed Loop Cooling System. Hoses carries Permanent Coolant. or Antifreeze. throughout The Engine. Heater. and Radiator.

HOSE-WATER Engine Coolant HoseEngine Coolant Overflow Hose

Fits STI

Cooling System Bypass Line
If your 2021 Subaru 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.