The Genuine Porsche Engine Timing Chain - 99710555171 is a high-quality, OEM replacement part for Porsche vehicles. This timing chain is responsible for synchronizing the movement of the engine's camshaft and crankshaft, ensuring that the valves open and close at the correct time for optimal engine performance. It is made from durable materials and designed to withstand the high speeds and pressures of the engine. This timing chain is an essential component for maintaining the proper functioning of your Porsche engine and should be replaced if it shows signs of wear or damage.