The Continental Timing Belt Kit - 135399 is a comprehensive set of products designed for the maintenance and repair of a car's timing belt. This kit includes a variety of essential components that work together to ensure the proper functioning of the timing belt, which is responsible for synchronizing the movement of the engine's valves and pistons. The kit includes a timing belt, tensioner, idler pulley, and various other components that may be necessary for a complete timing belt replacement. These products are designed to be compatible with a wide range of car models and are made with high-quality materials to ensure durability and longevity. By regularly using this kit, car owners can help prevent potential engine damage and maintain the optimal performance of their vehicle.