Genuine OEM Volkswagen Radiator Upper Hose, part number 5C0122101AA. This essential hose transports hot coolant from the engine to the radiator, playing a vital role in the engine cooling system. It is positioned as the upper connection between the engine and radiator. Made from durable, heat-resistant rubber with integrated plastic connectors, it weighs approximately 0.52 kg and measures 0.53m in length. Using a genuine OEM hose guarantees the correct routing geometry, material composition, and pressure resistance for reliable, leak-free coolant circulation.