This product is a genuine timing chain for Porsche vehicles with the part number 99610517158. It is designed to be a direct replacement for the original timing chain in Porsche models and is made with high-quality materials for optimal performance and durability. This timing chain is an essential component in the engine, responsible for keeping the camshaft and crankshaft in sync for proper timing of the engine's valves. It is an authentic Porsche part, ensuring a perfect fit and reliable operation.