Genuine OEM Audi Radiator Coolant Hose, part number 6C0122101F. This hose is a vital component of the engine cooling system, responsible for transporting coolant to and from the radiator to maintain optimal engine temperature. Its specific curved geometry ensures correct routing and connection within the cooling circuit. Choosing genuine OEM ensures the hose is made from high-quality, heat-resistant rubber with precise dimensions, preventing leaks and ensuring reliable coolant flow.