This product is a genuine Porsche engine timing chain with the part number 94610516975. It is used in Porsche vehicles to control the timing of the engine's valves and ensure proper operation. The timing chain is an essential component of the engine and is responsible for keeping the camshaft and crankshaft in sync. This product is made by Porsche and is of high quality and durability. It is designed to fit and function perfectly in Porsche vehicles.