Mechanical fuel pump for the fuel feed system. Fits Fiat 160-90 DT, 180-90 DT, 446, 480, 480 DT, 500, 500 DT, 540, 540 DT, 570, 570 DT, 580, 580 DT, 55-46, 55-46 DT, 55-56, 55-56 DT, 55-66, 55-66 DT, 55-88, 55-88 DT.