Buy OEM 2015 Subaru Part # 72133FG040. Packing Heater Unit. Heater Core Your vehicle’s heater core handles hot water from your engine’s cooling system and transfers the heat to

PACKING-HEATER UNIT HVAC Heater Core SealHVAC Case Seal

Fits Forester, Impreza, Outback, STI, WRX

Heater Core
Your vehicle’s heater core handles hot water from your engine’s cooling system and transfers the heat to the cabin in the form of comforting heat from your vents. A failed heater core can leak that water—which is also called coolant or antifreeze—onto the floor on the passenger side. If your 2015 Subaru needs to have the heater core replaced, it's a job best left to a Subaru trained technician.