Genuine OEM Audi Engine Coolant Hose, part number 8K0819372H. This hose is a vital component in the engine's thermal management system, responsible for transporting coolant to regulate engine temperature and prevent overheating. It is a short, curved hose, weighing approximately 0.088 kg and measuring 0.09 m in length. Choosing a genuine OEM coolant hose ensures the correct material composition, precise dimensions, and resistance to high temperatures and pressures, which are critical for preventing leaks and maintaining the efficiency and reliability of the engine cooling system.