The Genuine VW / Audi Connecting Rod Bolt Kit - 178109 is a comprehensive kit of products designed for use in cars made by the Volkswagen or Audi brand. It includes a set of connecting rod bolts, which are essential components in the engine that connect the piston to the crankshaft. These bolts are crucial for the smooth functioning of the engine and must be replaced periodically to ensure optimal performance and safety. The kit also includes all necessary hardware and components for installation. It is a genuine product from the manufacturer and is specifically designed to fit and service Volkswagen and Audi cars. This kit is essential for any car owner looking to maintain the quality and performance of their vehicle's engine.