Genuine OEM Volkswagen Coolant Hose, part number 2HJ122101A. This hose facilitates the circulation of coolant within the engine's cooling system to prevent overheating. It is located at position 20 in the cooling system assembly. The hose has a length of 0.44 meters and a weight of 0.37 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.