| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | YM719809-01560 | CYLINDER BLOCK A. | 00501- | |
| 2 | YM27241-120000 | PLUG | 00501- | |
| 3 | YM129795-02411 | BUSHING | 00501- | |
| 4 | YM124160-01910 | PLUG | 00501- | |
| 5 | YM23871-010000 | PLUG | 00501- | |
| 6 | YM171051-01921 | PLUG | 00501- | |
| 7 | YM27241-300000 | PLUG | 00501- | |
| 8 | YM27231-500000 | PLUG | 00501- | |
| 9 | YM23887-120002 | PLUG | 00501- | |
| 10 | YM119620-02020 | BOLT | 00501- | |
| 11 | YM119810-02800 | MAIN METAL ASS'Y | 00501- | |
| YM119810-02870 | MAIN METAL ASS'Y,0.25MM (US) | 00501- | ||
| 12 | YM119810-02930 | THRUST METAL ASS'Y | 00501- | |
| YM119810-02940 | THRUST METAL ASS'Y,0.25MM (OS) | 00501- | ||
| 13 | YM121250-34810 | GUIDE,GAUGE | 00501- | |
| 14 | YM119600-34800 | GAUGE,OIL | 00501- | |
| YM129150-25101 | IDLER GEAR ASS'Y | 00501- | ||
| 15 | \6\ | GEAR | 00501- | |
| 16 | YM129150-25061 | BUSHING | 00501- | |
| 17 | YM129100-25061 | SHAFT | 00501- | |
| 18 | YM26106-080452 | BOLT | 00501- | |
| 19 | YM124160-39450 | SWITCH,OIL PRESSURE | 00501- | |
| 20 | YM121550-49111 | JOINT | 00501- | |
| 21 | YM129150-25920 | BUSHING | 00501- |