Genuine OEM Audi Rear Fuel Gauge Sending Unit, part number 8K0919673A. This essential component is responsible for accurately measuring the amount of fuel remaining in the vehicle's fuel tank and transmitting this data to the dashboard fuel gauge. It is typically located within the rear fuel tank assembly. Weighing 0.087 kg, this sending unit features a float mechanism and electrical contacts designed for precise and reliable operation. Installing a genuine OEM fuel gauge sending unit ensures accurate fuel level readings, proper electrical signal characteristics, and long-term durability within the corrosive environment of the fuel tank.