Genuine OEM Audi Engine Coolant Hose, part number 4N0122447B. This hose is responsible for transporting engine coolant between various components of the cooling system, ensuring efficient heat transfer and temperature regulation. It is positioned within the engine bay, connecting to parts like the radiator, engine block, or heater core. Weighing 0.096 kg, this hose is engineered for specific routing and pressure resistance. Selecting genuine OEM ensures the correct material composition and precise geometry for leak-free and durable coolant circulation.