The Genuine Porsche Coil Spring Seat (part number 99634351701) is a component used in the suspension system of Porsche 996 models. It is designed to securely hold the coil spring in place and provide a stable base for the spring to compress against. This coil spring seat is made from high-quality materials and is an exact replacement for the original part. It is an essential component for maintaining the proper handling and ride quality of the vehicle.