4I1023: Pump. Caterpillar – 311, 312, 312B L, 315B, 315B FM L, 315B L, 317, 317B LN, 318B, 320 L. Fuel Pump 9H2256 fits Caterpillar D5 D5B D6C D6CLGP D6D D6DLGP D7F D7G D7GLGP. Oil Pump 6I1346 fits Caterpillar D7G D7G2 D7H D7R FB518 G936 R1300 R1300G W330B.