Genuine OEM Volkswagen Water Radiator Hose, part number 5QN122101AK. This hose is a vital component of the engine cooling system, responsible for carrying hot coolant from the engine to the radiator and returning cooled fluid. It is specifically located on the right side of the radiator. Weighing 0.171 kg and measuring 0.245m in length, this hose is designed for precise fitment. Choosing a genuine OEM radiator hose ensures the correct material composition, pressure resistance, and routing geometry for reliable, leak-free performance and optimal engine temperature regulation.