Parts for your 2010 Subaru Impreza-Heater hose

2010 Subaru Impreza heater hose — fitted, important, and worth a close look

Based on technical references, the 2010 Subaru Impreza does use heater hoses. The Subaru Service Manual for 2010MY Impreza (GE/GH/GR/GV) diagrams show a pair of heater hoses routing engine coolant to and from the heater core through the bulkhead. Subaru’s FAST parts catalogue lists specific “heater hose inlet/outlet” part numbers for these models, and aftermarket catalogues from Gates and Dayco also provide direct-fit heater hoses for the 2010 Impreza petrol and diesel variants. So yes, a heater hose is absolutely relevant to this vehicle.

On the 2010 Impreza, the heater hoses carry hot coolant from the engine to the heater core and return it to the cooling system. That constant flow is what lets the cabin heater work efficiently on chilly mornings without overworking the climate controls. Most 2010 Imprezas don’t use a separate heater tap/valve