Genuine OEM Audi Engine Heating Hose, part number 80C819371T. This hose is a vital part of the vehicle's heating and cooling system, responsible for transferring hot coolant from the engine to the heater core to provide cabin warmth. It is a precisely shaped hose, weighing 0.116 kg and measuring 0.29 meters in length. Selecting a genuine OEM heating hose guarantees the correct material composition for high temperatures and coolant resistance, along with the precise routing geometry for optimal flow and leak-free performance.