Genuine OEM Audi Oil Cooler Hose, part number 8E0121070B. This hose is responsible for circulating engine oil to and from the oil cooler, helping to regulate oil temperature and prevent overheating. It is a critical component within the engine cooling and lubrication system. Weighing 0.532 kg, this hose is constructed from durable, heat-resistant materials with precise routing geometry, ensuring leak-free operation and resistance to oil and temperature extremes for reliable engine performance.