Electric Fuel Pump Gas With Sending Unit For 325I 323CI 328 330XI E46Description A fuel pump is a component in motor vehicles that transfers liquid from the fuel tank to the carburetor of the internal combustion engine. It is a frequently essential component on a car or other internal combustion engined device. Fuel pumps pump gasoline from the vehicle's fuel tank to the engine and also distribute fuel under low pressure to the carburetor or to the fuel injection system under higher pressure. Carburetor engines utilize