| Item | Part No. | Part Name | Qty | Serial No. |
| YM719813-01560 | CYLINDER BLOCK ASS'Y | 04840- | ||
| 1 | \6\ | BLOCK,CYLINDER | 04840- | |
| 2 | YM124160-01910 | PLUG | 04840- | |
| 3 | YM171051-01921 | PLUG | 04840- | |
| 4 | YM119620-02020 | BOLT | 04840- | |
| 5 | YM23876-010000 | PLUG | .- | |
| \0\YM23871-010000 | PLUG | 04840-. | ||
| 6 | YM124160-01910 | PLUG | 04840- | |
| 7 | YM129001-01250 | PLUG | .- | |
| \0\YM27231-500000 | PLUG | 04840-. | ||
| 8 | YM27241-120000 | PLUG | 04840- | |
| 9 | YM27241-300000 | PLUG | 04840- | |
| 10 | YM119810-02800 | MAIN METAL ASS'Y (STD) | 04840- | |
| YM119810-02870 | MAIN METAL ASS'Y,0.25MM (US) | 04840- | ||
| 11 | YM119810-02930 | THRUST METAL ASS'Y (STD) | 04840- | |
| YM119810-02940 | THRUST METAL ASS'Y,0.25MM (OS) | 04840- | ||
| 12 | YM129795-02411 | BUSHING | 04840- |