| Item | Part No. | Part Name | Qty | Serial No. |
| YM121254-77010 | STARTING MOTOR ASS'Y | 18873-21385 | ||
| 1 | YMX-213011001 | ARMATURE ASS'Y | 18873-21385 | |
| 2 | YMX-21302302 | BEARING,BALL | 18873-21385 | |
| 3 | YMX-21303302 | BEARING,BALL | 18873-21385 | |
| 4 | YMX-21301110 | GEAR SHAFT ASS'Y | 18873-21385 | |
| 5 | YMX-21302115 | THRUST WASHER ASS'Y | 18873-21385 | |
| 6 | YMX-21304400 | CENTER BEARING A. | 18873-21385 | |
| 7 | YMX-21301402 | SEAL,OIL | 18873-21385 | |
| 8 | YMX-21302402 | O-RING | 18873-21385 | |
| 9 | YMX-213045001 | PINION ASS'Y | 18873-21385 | |
| 10 | YMX-21301119 | PINION STOPPER A. | 18873-21385 | |
| 11 | YMX-213076001 | GEAR CASE ASS'Y | 18873-21385 | |
| 12 | YMX-21302601 | BUSHING | 18873-21385 | |
| 13 | YMX-21302605 | LEVER ASS'Y | 18873-21385 | |
| 14 | YMX-21303610 | COVER ASS'Y | 18873-21385 | |
| 15 | YMX-213017001 | MAGNETIC SWITCH A. | 18873-21385 | |
| 16 | YMX-21308220 | FIELD COIL ASS'Y | 18873-21385 | |
| 17 | YMX-21308311 | BRUSH (+) | 18873-21385 | |
| 18 | YMX-21307305 | BRUSH HOLDER A. | 18873-21385 | |
| 19 | YMX-21305312 | BRUSH (-) | 18873-21385 | |
| 20 | YMX-21305313 | SPRING,BRUSH | 18873-21385 | |
| 21 | YMX-213043011 | COVER ASS'Y | 18873-21385 | |
| 22 | YMX-21304820 | BOLT,THROUGH | 18873-21385 |