| Item | Part No. | Part Name | Qty | Serial No. |
| 600-811-5610 | DYNAMO ASS'Y (20A) | 20338-25899 | ||
| THE NIKKO DENKI PART NUMBER IS THAT KD IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| 1 | KD1-31420-0260 | FAN | 20338-25899 | |
| 2 | KD7-31100-0060 | ARMATURE ASS'Y | 20338-25899 | |
| 3 | KD1-31230-0300 | FIELD COIL ASS'Y | 20338-25899 | |
| 4 | KD1-31511-0020 | PINION | 20338-25899 | |
| 5 | KD1-31761-0830 | COVER | 20338-25899 | |
| 6 | KD0-0133-06702 | BOLT | 20338-25899 | |
| 7 | KD7-31700-0040 | REAR BRACKET ASS'Y | 20338-25899 | |
| 8 | KD0-31720-0460 | HOLDER | 20338-25899 | |
| 9 | KD1-31740-0090 | BRUSH | 20338-25899 | |
| 10 | KD1-31913-0090 | SPRING | 20338-25899 | |
| 11 | KD1-31951-0350 | PACKING | 20338-25899 | |
| 12 | KD1-31801-0290 | BAND | 20338-25899 | |
| 13 | KD7-31300-0010 | FRONT BRACKET ASS'Y | 20338-25899 | |
| 14 | KD1-09201-0070 | BEARING | 20338-25899 | |
| 15 | KD1-0442-62067 | BEARING | 20338-25899 | |
| 16 | KD1-0061-08182 | SCREW | 20338-25899 | |
| 17 | KD1-0501-06110 | WASHER,LOCK | 20338-25899 | |
| 18 | KD1-0500-06010 | NUT,LOCK | 20338-25899 | |
| 19 | KD1-31923-0260 | COLLAR | 20338-25899 | |
| 20 | KD7-09210-0090 | SEAL ASS'Y,(NOT SHOWN) | 20338-25899 |