The Genuine BMW Drive Belt Kit - 474444 is a comprehensive set of products designed specifically for cars made by the BMW brand. This kit includes various components that are essential for the proper functioning of the drive belt in the car. The contents of the kit include a drive belt, tensioner, idler pulley, and various other necessary hardware pieces. These products are essential for maintaining the drive belt system, which is responsible for powering various components in the car, such as the alternator, water pump, and air conditioning compressor. This kit is designed to provide all the necessary parts for a complete and efficient replacement of the drive belt system in a BMW car.