Genuine OEM Audi Engine Coolant Hose, part number 4K0122447J. This hose is responsible for carrying coolant to maintain the engine's optimal operating temperature. It is located in the lower section of the cooling system, connecting to the radiator. Constructed from high-quality, heat-resistant rubber, this genuine OEM hose ensures a precise fit and long-term durability, preventing leaks and maintaining efficient coolant flow under various conditions.