Genuine OEM Audi Engine Coolant Hose, part number 059121073AF. This hose is crucial for the engine cooling system, carrying coolant to and from various engine components to maintain optimal operating temperatures. It connects to a heat exchanger and another engine-mounted component. Weighing 0.025 kg and measuring 0.092m in length, this genuine OEM hose provides the correct routing geometry and resistance to engine coolants, preventing leaks and ensuring efficient heat transfer.