| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | YM119620-22090 | PISTON ASS'Y | 02519- | |
| YM719620-22820 | PISTON ASS'Y (OS) | 02519- | ||
| 2 | YM719620-22500 | PISTON RING ASS'Y | 02519- | |
| YM719620-22540 | PISTON RING ASS'Y,0.25MM (OS) | 02519- | ||
| 3 | YM119620-22300 | PIN,PISTON | 02519- | |
| 4 | YM22252-000210 | RING,SNAP | 02519- | |
| 5 | YM719620-23100 | CONNECTING ROD A. | 02519- | |
| 6 | YM119620-23910 | BUSHING | 02519- | |
| 7 | YM719620-23600 | CRANK PIN METAL A. | 02519- | |
| YM719620-23610 | CRANK PIN METAL A.,0.25MM (US) | 02519- | ||
| 8 | YM105225-23200 | BOLT | 02519- |