The Continental B8 Serpentine Belt Kit - 135348 is a comprehensive kit of products designed for use in a car's engine. It includes various components that are essential for maintaining the proper functioning of the serpentine belt, which is responsible for powering several important systems in the vehicle. The kit includes a serpentine belt, tensioner, idler pulley, and other necessary hardware. These components work together to ensure that the serpentine belt is properly tensioned and able to drive the alternator, power steering pump, and other accessories. This kit is an essential tool for keeping a car's engine running smoothly and efficiently.