Genuine OEM Volkswagen Coolant Hose, part number 2HJ122101B. This hose transports coolant between engine components and the radiator to regulate engine temperature. It is located at position 1 in the cooling system assembly. The hose has a length of 0.56 meters and a weight of 0.5996 kg. Genuine OEM coolant hoses are constructed with specific material compositions and tolerances to withstand engine temperatures and pressures, ensuring reliable coolant circulation and preventing leaks.