The Genuine BMW Engine Cooling Fan Assembly (part number 17428487636) is a component used in the cooling system of BMW vehicles. It is responsible for drawing air through the radiator to help dissipate heat from the engine. This assembly includes the fan blades, motor, and housing. It is a genuine OEM (Original Equipment Manufacturer) part, meaning it is made by the same company that produces BMW vehicles. This ensures a perfect fit and reliable performance. This cooling fan assembly is designed specifically for BMW models and is an essential part of the engine's cooling system to prevent overheating and potential engine damage.