The Continental Timing Belt Kit - 135405 is a comprehensive set of products designed for use in a car's engine system. It includes various components that work together to ensure the proper functioning of the car's timing belt. The kit contains five different items, including a timing belt, a tensioner, an idler pulley, a water pump, and a drive belt. These products are essential for maintaining the proper timing and synchronization of the engine's internal components, which is crucial for the overall performance and efficiency of the vehicle. The kit is suitable for use in a wide range of car models and provides all the necessary components for a complete timing belt replacement or maintenance service.