Genuine OEM Volkswagen Coolant Hose with Coupling, part number 5Q0122101DK. This hose is a vital component of the engine cooling system, responsible for transporting hot and cooled engine coolant between the engine, radiator, and other components. It features an integrated coupling for secure connection. Weighing 0.284 kg, genuine OEM hoses ensure correct routing geometry, material resistance to heat and chemicals, and leak-free performance.