| Item | Part No. | Part Name | Qty | Serial No. |
| | SERIAL NO. 80199 INDICATES D21A-7. THE OTHER MACHINES ARE AS FOLLOWS. | | |
| | D20A-7 = 80089 | | |
| | D20A-7B = 80060 | | |
| | D21A-7B = 80143 | | |
| 1 | 09690-C0355 | PLATE, MARK,KOMATSU | | 80053-81600 |
| 2 | 104-98-32971 | PLATE, MARK,D21A | | 80053-81600 |
| 3 | 114-98-51130 | PLATE, OPERATING,DOZER LEVER | | 80199-@ |
| 3 | 114-54-48611 | PLATE, OPERATING,DOZER LEVER | | 80053-80198 |
| 4 | 114-98-44250 | PLATE, OPERATING,WORK EQUIPMENT, LEVER LOCK | | 80053-@ |
| 5 | 104-98-32325 | OIL CHART | | 81470-@ |
| 5 | 104-98-32324 | CHART, OIL | | 80053-81469 |
| 6 | 09601-00835 | PLATE, NAME,(LIMITED SUPPLY) | | 80053-@ |
| 7 | 04418-13060 | SCREW | | 80053-@ |
| 8 | 104-98-44421 | PLATE,KOMATSU, L.H. | | 81294-81600 |
| 8 | 104-98-44420 | PLATE, MARK,KOMATSU, L.H. | | 80053-81293 |
| 8 | 104-98-44431 | PLATE,KOMATSU, R.H. | | 81294-81600 |
| 8 | 104-98-44430 | PLATE, MARK,KOMATSU, R.H. | | 80053-81293 |
| 9 | 114-98-44170 | PLATE, OPERATING,STEERING LEVER | | 80053-@ |
| 10 | 114-98-44180 | PLATE, OPERATING,STEERING LEVER | | 80053-@ |
| 11 | 104-98-34220 | PLATE, OPERATING,TRANSMISSION LEVER | | 80053-80198 |
| 12 | 09667-03001 | PLATE, SAFETY,ENGINE COVER | | 80847-@ |
| 12 | 09667-03000 | PLATE, SAFETY,ENGINE COVER | | 80053-80846 |
| 13 | 09173-03000 | PLATE, SAFETY,CARRYING OUT MAINTENANCE | | 80053-@ |
| 14 | 09651-03001 | PLATE, SAFETY,BEFORE OPERATING | | 80847-@ |
| 14 | 09651-03000 | PLATE, SAFETY,BEFORE OPERATING | | 80053-80846 |
| 15 | 09657-03003 | PLATE, SAFETY,TRACK ADJUSTING | | 80847-@ |
| 15 | 09657-03010 | PLATE, SAFETY,TRACK ADJUSTING | | 80053-80846 |
| 16 | 09668-03001 | PLATE, SAFETY,RADIATOR | | 80847-@ |
| 16 | 09668-03000 | PLATE, SAFETY,RADIATOR | | 80053-80846 |
| 17 | 09652-30101 | PLATE, CAUTION,FUEL TANK | | 80053-@ |
| 18 | 09653-03001 | PLATE, SAFETY,HYDRAULIC TANK | | 80847-@ |
| 18 | 09653-03000 | PLATE, SAFETY,HYDRAULIC TANK | | 80053-80846 |
| 19 | 09650-30103 | PLATE, INSTRUCTION,RADIATOR | | 80053-@ |
| 20 | 09637-30161 | PLATE, INSTRUCTION,AIR CLEANER | | 80053-@ |
| 21 | 09683-30060 | PLATE, OPERATING,STEERING SWITCH | | 80053-@ |
| 22 | 103-98-21351 | PLATE, CAUTION,HYDRAULIC FILTER | | 80053-@ |
| 23 | 09654-33001 | PLATE, SAFETY,STEERING AND AFTER OPERATING | | 80847-@ |
| 23 | 114-98-44510 | PLATE, SAFETY,STEERING AND AFTER OPERATING | | 80053-80846 |
| 24 | 09664-30083 | PLATE, SAFETY,BATTERY | | 80053-@ |
| 25 | 09664-30070 | PLATE, SAFETY,BATTERY | | 80053-@ |
| 26 | 09802-13000 | PLATE, SAFETY,BEFORE DRIVING | | 80847-@ |
| 27 | 09812-13000 | PLATE, SAFETY,DANGER, KEEP AWAY | | 80847-@ |
| 28 | 09808-03000 | PLATE, SAFETY,BATTERY CABLE | | 80847-@ |
| 29 | 09963-03001 | TAG,DO NOT OPERATE | | 81180-@ |
| 29 | 09963-03000 | TAG,DO NOT OPERATE | | 80847-81179 |
| 30 | 22L-98-18211 | PLATE, MARK,UTILITY | | 81265-@ |
