Genuine OEM Volkswagen Coolant Hose with Coupling, part number 4M0122055CH. This hose is a vital component of the engine cooling system, responsible for circulating coolant between various parts like the radiator, engine block, and heater core. It features an integrated coupling for secure connection within the cooling circuit. Weighing 0.3194 kg, this hose is designed to withstand high temperatures and pressures. Choosing a genuine OEM coolant hose ensures the correct material composition for chemical resistance and the precise routing geometry to prevent kinks and leaks.