The Genuine BMW Radiator Coolant Hose Upper - 11538645481 is a high-quality replacement part for BMW vehicles. This hose is designed to transport coolant from the radiator to the engine, helping to regulate the temperature and prevent overheating. It is made from durable materials and is an exact fit for the original hose, ensuring proper function and compatibility with your BMW. Regularly replacing this hose can help maintain the performance and longevity of your vehicle's cooling system.