The Genuine Porsche Fuel Tank Sending Unit Kit - 474373 is a comprehensive set of products designed to service the fuel tank sending unit of a car. This kit includes three essential components: a fuel tank sending unit, a gasket, and a retaining ring. The fuel tank sending unit is responsible for measuring the amount of fuel in the tank and sending this information to the fuel gauge on the dashboard. The gasket ensures a tight seal between the sending unit and the fuel tank, preventing any leaks. The retaining ring securely holds the sending unit in place. This kit is specifically designed for Porsche vehicles and provides all the necessary parts for a complete and efficient repair or replacement of the fuel tank sending unit.