Genuine OEM Volkswagen Coolant Hose with Coupling, part number 2Q0122101CE. This hose is an integral part of the engine cooling system, responsible for circulating coolant to maintain optimal engine operating temperatures. It measures approximately 0.46m in length and weighs 0.342 kg. Using a genuine OEM hose ensures correct routing geometry, resistance to temperature and pressure fluctuations, and prevents leaks that could lead to engine overheating.