| ITEM | NAME/DESCRIPTION | PART NO. | BRAND |
| 51441 | GEAR (crankshaft-40 teeth) | 4M9933 | Caterpillar |
| 51442 | FUEL TRANSFER PUMP ASSEMBLY | 4M9965 | Caterpillar |
| 51443 | tube assy, turbo rocker cover | 4M9996 | Caterpillar |
| 51444 | CRANKSHAFT | 4N0012 | Caterpillar |
| 51445 | ELEMENT AS-PRIMARY (AIR, PANEL TYPE) | 4N0015 | Caterpillar |
| 51446 | COVER-ADAPTER | 4N0053 | Caterpillar |
| 51447 | MANIFOLD | 4N0085 | Caterpillar |
| 51448 | ROTOR AS-PUMP | 4N0094 | Caterpillar |
| 51449 | CYLINDER BLOCK AS (CYLINDER BLOCK ASSEMBLY) | 4N0101 | Caterpillar |
| 51450 | GUIDE FUEL INJECTION PUMP | 4N0116 | Caterpillar |
| 51451 | HOUSING | 4N0128 | Caterpillar |
| 51452 | STARTING MOTOR GROUP-ELECTRIC (ELECTRIC STARTING MOTOR GROUP) | 4N0190 | Caterpillar |
| 51453 | PUMP GROUP-ENGINE OIL (OIL PUMP GROUP–WITHOUT HOUSING) | 4N0193 | Caterpillar |
| 51454 | SPACER (0.42X0.75X0.6-IN THK) | 4N0205 | Caterpillar |
| 51455 | RING-RETAINING | 4N0224 | Caterpillar |
| 51456 | GAUGE AS-LEVEL | 4N0234 | Caterpillar |
| 51457 | STARTING MOTOR GROUP-ELECTRIC | 4N0241 | Caterpillar |
| 51458 | PUMP GROUP-FUEL TFR & PRIMING (FUEL TRANSFER AND PRIMING PUMP GROUP) | 4N0242 | Caterpillar |
| 51459 | PIPE ASSEM. | 4N0243 | Caterpillar |
| 51460 | SEAL,PLAIN ENCASED FUEL INJECTION PUMP HOUSING | 4N0260 | Caterpillar |
| 51461 | FILTER ELEMENT AS-AIR (SECONDARYAIR CLEANER) | 4N0313 | Caterpillar |
| 51462 | FILTER ELEMENT AS-AIR (PRIMARYAIR CLEANER) | 4N0326 | Caterpillar |
| 51463 | PLATE-CAMSHAFT THRUST | 4N0342 | Caterpillar |
| 51464 | BEARING-SLEEVE | 4N0343 | Caterpillar |
| 51465 | SHAFT-DRIVE IDLER | 4N0345 | Caterpillar |
| 51466 | GEAR-WATER PUMP DRIVE (74 TEETH) | 4N0350 | Caterpillar |
| 51467 | COVER AS-REGULATOR | 4N0362 | Caterpillar |
| 51468 | Nut(5/8-11 THD) | 4N0367 | Caterpillar |
| 51469 | GEAR-PUMP (10-TEETH) | 4N0406 | Caterpillar |
| 51470 | WEIGHT,INJECTION FUEL INJECTION PUMP | 4N0425 | Caterpillar |
| 51471 | GEAR-PUMP (15-TEETH) | 4N0429 | Caterpillar |
| 51472 | BEARING-BALL | 4N0432 | Caterpillar |
| 51473 | PIN,SHOULDER FUEL INJECTION PUMP | 4N0444 | Caterpillar |
| 51474 | HOUSING ASSEM. | 4N0451 | Caterpillar |
| 51475 | FUEL PUMP HOUSING GROUP | 4N0457 | Caterpillar |
| 51476 | bearing insert | 4N0514 | Caterpillar |
| 51477 | SHAFT,STRAIGHT | 4N0528 | Caterpillar |
| 51478 | GASKET–(GOVERNOR HOUSING) | 4N0556 | Caterpillar |
| 51479 | SPRING,HELICAL | 4N0605 | Caterpillar |
| 51480 | PLATE | 4N0613 | Caterpillar |
| 51481 | CAP-CRANKSHAFT BEARING | 4N0614 | Caterpillar |
| 51482 | GASKET | 4N0641 | Caterpillar |
| 51483 | SUPPORT & ENGINE GROUP | 4N0654 | Caterpillar |
| 51484 | CAMSHAFT ASSEM. | 4N0657 | Caterpillar |
| 51485 | GASKET-PUMP | 4N0659 | Caterpillar |
| 51486 | PUMP GROUP-WATER (WATER PUMP GROUP) | 4N0660 | Caterpillar |
| 51487 | PULLEY | 4N0672 | Caterpillar |
| 51488 | DOWEL (31.8MM X 15.88MM) | 4N0683 | Caterpillar |
| 51489 | DOWEL (.75 LONG) | 4N0684 | Caterpillar |
| 51490 | BEARING-SLEEVE (1-IN WIDEMARKED X) | 4N0685 | Caterpillar |
| 51491 | MANIFOLD GROUP-EXHAUST (WATER COOLED EXHAUST MANIFOLD GROUP) | 4N0691 | Caterpillar |
| 51492 | GASKET (OIL DRAIN) | 4N0699 | Caterpillar |
| 51493 | COOLER GROUP-ENGINE OIL (ENGINE OIL COOLER GROUP) | 4N0729 | Caterpillar |
| 51494 | PUMP GROUP-ENGINE OIL | 4N0733 | Caterpillar |
| 51495 | PUMP GROUP-ENGINE OIL (ENGINE OIL PUMP GROUP) | 4N0735 | Caterpillar |
| 51496 | CRANKSHAFT GROUP (CRANKSHAFT GROUP) | 4N0741 | Caterpillar |
| 51497 | MANIFOLD GROUP-EXHAUST | 4N0754 | Caterpillar |
| 51498 | DOWEL-HOLLOW | 4N0775 | Caterpillar |
| 51499 | SUPPORT (rear) | 4N0788 | Caterpillar |
| 51500 | GASKET (NOTE F) | 4N0790 | Caterpillar |
| 51501 | VALVE AS-BYPASS (FUEL INJECTION PUMP) | 4N0824 | Caterpillar |
| 51502 | ELBOW-COOLER INLET | 4N0826 | Caterpillar |
| 51503 | SHAFT AS-ROCKER ARM | 4N0839 | Caterpillar |
| 51504 | SLEEVE-WEAR | 4N0848 | Caterpillar |
| 51505 | PLATE THRUST | 4N0849 | Caterpillar |
| 51506 | GASKET (BONNET TO BLOCK) | 4N0864 | Caterpillar |
| 51507 | GASKET | 4N0865 | Caterpillar |
| 51508 | AIR CLEANER GROUP | 4N0878 | Caterpillar |
| 51509 | AIR CLEANER GROUP (AIR CLEANER GROUP) | 4N0879 | Caterpillar |
| 51510 | RACK-REGULATING R.H. | 4N0900 | Caterpillar |
| 51511 | RACK-REGULATING L.H. | 4N0901 | Caterpillar |
| 51512 | SCREEN AS-SUCTION (ENGINE OIL LINES) | 4N0913 | Caterpillar |
| 51513 | CLIP (SUCTION SCREEN) | 4N0914 | Caterpillar |
| 51514 | CRANKSHAFT GROUP (CRANKSHAFT GROUP) | 4N0922 | Caterpillar |
| 51515 | PLUG-CUP | 4N0932 | Caterpillar |
| 51516 | GASKET-CYLINDER BLOCK (R.H. SIDE) | 4N0933 | Caterpillar |
| 51517 | DOWEL (1/4X1.375IN) | 4N0955 | Caterpillar |
| 51518 | CAMSHAFT GROUP (CAMSHAFT GROUP-SINGLE) | 4N0963 | Caterpillar |
| 51519 | CAMSHAFT GROUP (CRANKCASE) | 4N0965 | Caterpillar |
| 51520 | GASKET-CHECK VALVE | 4N0975 | Caterpillar |
| 51521 | TUBE ASSEM. | 4N0995 | Caterpillar |
| 51522 | COVER | 4N0996 | Caterpillar |
