The Genuine BMW Radiator Support Air Deflector - 17118089725 is a component designed to fit onto the radiator support of a BMW vehicle. It helps to direct air flow through the radiator, ensuring efficient cooling of the engine. This air deflector is a genuine BMW product, meaning it is made by the original manufacturer and is of high quality. It is specifically designed to fit and function properly on BMW vehicles, providing optimal performance and durability. This product is an essential part of the cooling system and ensures that the engine stays at a safe operating temperature.