| Item | Part No. | Part Name | Qty | Serial No. |
| 600-821-3580 | ALTERNATOR A. (13A),(WITH NON HARDENING PULLEY) | 11731- | ||
| THE NIKKO DENKI PART NUMBER IS THAT KD IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| 1 | KD7-33100-0121 | ROTOR ASS'Y | 11731- | |
| 2 | KD1-0452-62027 | BEARING,BALL | 11731- | |
| 3 | KD1-33926-0820 | RETAINER | 11731- | |
| 4 | KD1-33923-0570 | COLLAR | 11731- | |
| 5 | KD0-33926-0370 | RETAINER | 11731- | |
| 6 | KD1-0452-63057 | BEARING,BALL | 11731- | |
| 7 | KD1-44000-0730 | REGULATOR ASS'Y | 11731- | |
| 8 | KD1-33951-0280 | PACKING | 11731- | |
| KD0-33700-2580 | REAR BRACKET ASS'Y | 11731- | ||
| 9 | KD0-33710-1340 | BRACKET ASS'Y | 11731- | |
| 10 | KD1-47921-0710 | WASHER | 11731- | |
| 11 | KD1-33943-0731 | BUSHING,INSULATE | 11731- | |
| 12 | KD1-33951-0290 | PACKING | 11731- | |
| 13 | KD1-33944-0490 | TUBE | 11731- | |
| 14 | KD1-33720-0792 | BRUSH HOLDER ASS'Y | 11731- | |
| 15 | KD0-33901-0500 | BOLT | 11731- | |
| 16 | KD0-33730-2290 | RECTIFIER ASS'Y | 11731- | |
| 17 | KD1-33943-0870 | BUSHING,INSULATE | 11731- | |
| 18 | KD0-33901-0370 | BOLT | 11731- | |
| 19 | KD1-33785-1390 | WIRE,LEAD | 11731- | |
| 20 | KD0-0274-06652 | BOLT | 11731- | |
| 21 | KD1-33200-1000 | STATOR ASS'Y | 11731- | |
| 22 | KD1-33951-0270 | PACKING | 11731- | |
| 23 | KD1-33300-0450 | FRONT BRACKET ASS'Y | 11731- | |
| 24 | KD1-33761-0870 | COVER | 11731- | |
| 25 | KD0-33400-1460 | PULLEY,NON HARDENING | 11731- | |
| 26 | KD1-0335-18002 | WASHER,SPRING | 11731- | |
| 27 | KD0-0280-18022 | NUT | 11731- | |
| 28 | KD1-0345-05001 | WASHER,SEAL | 11731- | |
| 29 | KD0-0080-05302 | BOLT | 11731- | |
| 30 | KD7-09210-0230 | SEAL ASS'Y,(NOT SHOWN) | 11731- |