Fuel Injection Pump Ford 4600 555B 4500 4610 4000 D0NN9A543K Fits Ford Tractor(s) 4000, 4600 Fits Ford Construction & Industrial(s) 515, 531, 532, 535, 540, 545 Replaces Ford OEM nos D6NN9A543G, D0NN9A543K Replaces CAV - Lucas Mfg nos 3233F390, 3833F390 All models listed with 3 Cylinder - 201 cu. Engine