The Genuine BMW Accessory Drive Belt - 11287636373 is a high-quality replacement belt for BMW vehicles. This belt is designed to drive various engine accessories such as the alternator, power steering pump, and air conditioning compressor. It is made from durable materials and is specifically engineered to fit and function perfectly in BMW vehicles. This accessory drive belt is an essential component for the proper operation of the vehicle's engine and should be replaced regularly to ensure optimal performance.