The Genuine VW / Audi Timing Chain Kit - 178712 is a comprehensive set of products designed to service the timing chain of a car. It includes various components such as a timing chain, tensioner, guide rails, and other necessary hardware to ensure proper functioning of the timing chain system. The kit also includes gaskets and seals to prevent leaks and ensure a tight seal. Additionally, it contains specialized tools and instructions for installation, making it user-friendly and convenient for car owners. This kit is specifically designed for Volkswagen and Audi vehicles, providing a reliable and high-quality solution for maintaining the timing chain system.