Genuine OEM Volkswagen Coolant Hose, part number 7E0122051R. This hose is a vital component of the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperatures. Constructed from durable rubber with integrated clamps and a plastic connector, it weighs approximately 0.56 kg. Using a genuine OEM coolant hose ensures the correct routing geometry, material resistance to heat and pressure, and leak-free performance critical for engine longevity.