Genuine OEM Volkswagen Fuel Level Sender, part number 1KD919051F. This critical component is responsible for accurately measuring the amount of fuel in the tank and transmitting this information to the vehicle's fuel gauge or display. It is typically integrated into the fuel pump assembly, located inside the fuel tank. The sender ensures the driver has precise and real-time data on fuel reserves. Using a genuine OEM fuel level sender guarantees accurate readings and reliable electrical signals, preventing incorrect fuel gauge indications and ensuring proper fuel management.