This Genuine BMW Radiator Coolant Hose (part number 17127507149) is a high-quality replacement part for your BMW vehicle. It is designed to be used in the cooling system to transfer coolant from the radiator to the engine. This hose is made of durable materials and is specifically designed to fit and function like the original factory part. It is an essential component for maintaining the proper functioning of your vehicle's cooling system and ensuring the engine stays at a safe operating temperature. This radiator coolant hose is a genuine OEM part, ensuring the best quality and compatibility with your BMW vehicle.