| Item | Part No. | Part Name | Qty | Serial No. |
| 600-821-9380 | ALTERNATOR A. (50A) | 10040- | ||
| THE SAWAFUJI DENKI PART NUMBER IS THAT SD IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| 1 | SD1211-350-10 | STATOR ASS'Y | 10040- | |
| SD1230-188-01 | REAR BRACKET ASS'Y | 10040- | ||
| 2 | SD2240-195-00 | BRACKET | 10040- | |
| 3 | SD1235-064-00 | HEAT SINK ASS'Y(+) | 10040- | |
| 4 | SD1235-064-10 | HEAT SINK ASS'Y(-) | 10040- | |
| 5 | SD5010-264-00 | BOLT | 10040- | |
| 6 | SD3220-388-00 | SUPPORT | 10040- | |
| 7 | SD4215-040-00 | INSULATOR | 10040- | |
| 8 | SD4041-075-00 | BUSHING | 10040- | |
| 9 | SD4215-039-00 | INSULATOR | 10040- | |
| 10 | SD4041-056-00 | BUSHING | 10040- | |
| 11 | SD6060-119-20 | CONDENSER | 10040- | |
| 12 | SD8140-050-301 | BOLT | 10040- | |
| 13 | SD4215-013-00 | INSULATOR | 10040- | |
| 14 | SD4041-057-00 | BUSHING | 10040- | |
| 15 | SD1510-029-01 | REGULATOR ASS'Y | 10040- | |
| 16 | SD4142-010-00 | O-RING | 10040- | |
| 17 | SD2202-014-01 | COVER | 10040- | |
| 18 | SD6206-007-30 | BEARING,BALL | 10040- | |
| 19 | SD3409-003-00 | COVER | 10040- | |
| 20 | SD1251-007-00 | COIL ASS'Y | 10040- | |
| 21 | SD1221-151-00 | ROTOR ASS'Y | 10040- | |
| SD1240-072-00 | FRONT BRACKET ASS'Y | 10040- | ||
| 22 | SD2242-086-00 | BRACKET | 10040- | |
| 23 | SD6410-020-00 | SEAL,OIL | 10040- | |
| 24 | SD6206-003-20 | BEARING,BALL | 10040- | |
| 25 | SD4142-009-00 | O-RING | 10040- | |
| 26 | SD2202-022-00 | COVER | 10040- | |
| 27 | SD5010-215-00 | BOLT | 10040- | |
| 28 | SD5010-047-30 | BOLT | 10040- | |
| 29 | SD3600-173-00 | COLLAR | 10040- | |
| 30 | SD1982-032-00 | FAN ASS'Y | 10040- | |
| 31 | SD2080-227-00 | PULLEY | 10040- | |
| 32 | SD3000-078-00 | WASHER | 10040- | |
| 33 | SD8264-183-001 | NUT | 10040- | |
| 34 | SD3002-046-00 | COVER | 10040- |