| ITEM | NAME/DESCRIPTION | PART NO. | BRAND |
| 51523 | CYLINDER BLOCK | 4N101 | Caterpillar |
| 51524 | SUPPORT-ELBOW | 4N1010 | Caterpillar |
| 51525 | GASKET (STARTING MOTOR) | 4N1059 | Caterpillar |
| 51526 | STARTING MOTOR GROUP-ELECTRIC | 4N1061 | Caterpillar |
| 51527 | STARTING MOTOR GROUP-ELECTRIC (ELECTRIC STARTING MOTOR GROUP) | 4N1062 | Caterpillar |
| 51528 | 4n1095 | Caterpillar | |
| 51529 | SHAFT ASSEM. | 4N1098 | Caterpillar |
| 51530 | PUMP GROUP-FUEL TRANSFER | 4N1101 | Caterpillar |
| 51531 | GASKET | 4N1104 | Caterpillar |
| 51532 | GASKET | 4N1105 | Caterpillar |
| 51533 | SHAFT AS-ROCKER ARM | 4N1106 | Caterpillar |
| 51534 | SHAFT AS-ROCKER ARM | 4N1108 | Caterpillar |
| 51535 | PUMP GROUP-FUEL TRANSFER | 4N1111 | Caterpillar |
| 51536 | COVER | 4N1114 | Caterpillar |
| 51537 | SHAFT AS-PUMP | 4N1116 | Caterpillar |
| 51538 | GEAR-TRANSFER PUMP (10-TEETH) | 4N1119 | Caterpillar |
| 51539 | GASKET (ENGINE OIL PAN) | 4N1151 | Caterpillar |
| 51540 | GASKET-REGULATOR COVER (TEMPERATURE REGULATOR HOUSING) | 4N1156 | Caterpillar |
| 51541 | COUPLING-EXHAUST | 4N1157 | Caterpillar |
| 51542 | 4n116 | Caterpillar | |
| 51543 | SUPPORT-AIR CLEANER | 4N1171 | Caterpillar |
| 51544 | CLIP | 4N1199 | Caterpillar |
| 51545 | CYLINDER BLOCK GROUP | 4N1201 | Caterpillar |
| 51546 | BODY-COOLER BYPASS (ENGINE OIL) | 4N1215 | Caterpillar |
| 51547 | TUBE-COOLER BYPASS | 4N1216 | Caterpillar |
| 51548 | SEAL-O-RING | 4N1230 | Caterpillar |
| 51549 | NOZZLE ASSEMBLY FUEL VALVE | 4N1251 | Caterpillar |
| 51550 | GASKET-FLANGE TO PUMP OUTLET | 4N1320 | Caterpillar |
| 51551 | COOLER GROUP-HYDRAULIC OIL | 4N1375 | Caterpillar |
| 51552 | TUBE ASSEM. | 4N1413 | Caterpillar |
| 51553 | GASKET-RADIATOR TOP TANK | 4N1418 | Caterpillar |
| 51554 | RETAINER | 4N1458 | Caterpillar |
| 51555 | Fuel Injection Pump | 4N147 | Caterpillar |
| 51556 | ADAPTER AS-POWER TAKE-OFF | 4N1501 | Caterpillar |
| 51557 | COOLER GROUP-TRANSMISSION OIL (TRANSMISSION OIL COOLER GROUP) | 4N1559 | Caterpillar |
| 51558 | MUFFLER ASSEM. | 4N1565 | Caterpillar |
| 51559 | LINK-RACK | 4N1572 | Caterpillar |
| 51560 | GASKET-CYLINDER BLOCK | 4N1625 | Caterpillar |
| 51561 | DOWEL (1.25IN X .376IN) | 4N1650 | Caterpillar |
| 51562 | GASKET | 4N1684 | Caterpillar |
| 51563 | ROCKER ARM GROUP | 4N1718 | Caterpillar |
| 51564 | SHUT-OFF GROUP-SOLENOID | 4N1719 | Caterpillar |
| 51565 | GASKET-ACC DRIVE (NOTE E) | 4N1722 | Caterpillar |
| 51566 | SHIELD–WEIGHT CARRIER | 4N1723 | Caterpillar |
| 51567 | PAN GROUP-OIL (-ENGINE) | 4N1733 | Caterpillar |
| 51568 | LIFTER,FUEL PUMP | 4N1750 | Caterpillar |
| 51569 | IMPELLER-PUMP | 4N1751 | Caterpillar |
| 51570 | LEVER-CONTROL | 4N1763 | Caterpillar |
| 51571 | PLUNGER & BARREL ASSEM. | 4N1765 | Caterpillar |
| 51572 | VALVE-BYPASS (FUEL) | 4N1767 | Caterpillar |
| 51573 | GOV & FUEL INJ PUMP GROUP | 4N1834 | Caterpillar |
| 51574 | GOV & FUEL INJ PUMP GROUP | 4N1836 | Caterpillar |
| 51575 | GASKET | 4N1848 | Caterpillar |
| 51576 | TUBE-AIR | 4N1849 | Caterpillar |
| 51577 | GASKET | 4N1868 | Caterpillar |
| 51578 | GASKET-HOUSING | 4N1870 | Caterpillar |
| 51579 | LEVER-SEAT | 4N1881 | Caterpillar |
| 51580 | HOUSING GROUP-FLYWHEEL | 4N1890 | Caterpillar |
| 51581 | COVER GROUP-FLYWHEEL HOUSING | 4N1902 | Caterpillar |
| 51582 | GASKET-WOUND | 4N1918 | Caterpillar |
| 51583 | PLATE ASSEM. | 4N1932 | Caterpillar |
| 51584 | GASKET | 4N1946 | Caterpillar |
| 51585 | PUMP GROUP-WATER (WATER PUMP GROUP) | 4N1951 | Caterpillar |
| 51586 | COOLER GROUP-HYDRAULIC OIL | 4N1953 | Caterpillar |
