This product is a genuine Porsche engine timing chain with part number 958109465B. It is designed to be used in Porsche vehicles and is an essential component for proper engine function. The timing chain is responsible for keeping the engine's valves and pistons in sync, ensuring smooth and efficient operation. This high-quality product is made from durable materials and is built to meet the strict standards of Porsche. It is a reliable and essential part for maintaining the performance and longevity of your Porsche engine.