The Genuine Porsche Radiator Plug - 99610654571 is a replacement part for the radiator of a Porsche vehicle. It is a small, threaded plug that is designed to seal the radiator and prevent any leaks. This plug is specifically designed for use in Porsche models and is made from high-quality materials to ensure durability and proper functioning. It is an essential component for maintaining the proper functioning of the radiator and the overall cooling system of the vehicle.