| Item | Part No. | Part Name | Qty | Serial No. |
| 6128-31-2050 | PISTON ASS'Y | 50816- | ||
| 1 | 6128-31-2140 | PISTON | 50816- | |
| 2 | 6127-31-2410 | PIN,PISTON | 50816- | |
| 3 | 6120-31-2120 | RING,SNAP | 50816- | |
| 6128-31-2070 | PISTON RING ASS'Y,PER CYLINDER | 50816- | ||
| 4 | \6\ | RING,TOP | 50816- | |
| 5 | \6\ | RING,2ND | 50816- | |
| 6 | \6\ | RING,OIL | 50816- | |
| 6127-31-3101 | CONNECTING ROD ASS'Y | 50816- | ||
| 7 | \6\ | ROD,CONNECTING | 50816- | |
| 8 | \6\ | CAP | 50816- | |
| 9 | 6127-31-3131 | BUSHING | 50816- | |
| 10 | 6127-31-3314 | BOLT | 50816- | |
| 11 | 6127-31-3321 | NUT | 50816- | |
| 12 | 6127-31-3333 | WASHER,HARD | 50816- | |
| STANDARD | ||||
| 6127-31-3042 | CRANK PIN METAL A. | 50816- | ||
| 13 | \6\ | METAL,UPPER | 50816- | |
| 14 | \6\ | METAL,LOWER | 50816- | |
| UNDERSIZE 0.25MM | ||||
| 13 | 6127-39-3042 | CRANK PIN METAL A. | 50816- | |
| 13 | \6\ | METAL,UPPER | 50816- | |
| 14 | \6\ | METAL,LOWER | 50816- | |
| UNDERSIZE 0.50MM | ||||
| 13 | 6127-38-3042 | CRANK PIN METAL A. | 50816- | |
| 13 | \6\ | METAL,UPPER | 50816- | |
| 14 | \6\ | METAL,LOWER | 50816- | |
| UNDERSIZE 0.75MM | ||||
| 13 | 6127-37-3042 | CRANK PIN METAL A. | 50816- | |
| 13 | \6\ | METAL,UPPER | 50816- | |
| 14 | \6\ | METAL,LOWER | 50816- | |
| UNDERSIZE 1.00MM | ||||
| 13 | 6127-36-3042 | CRANK PIN METAL A. | 50816- | |
| 13 | \6\ | METAL,UPPER | 50816- | |
| 14 | \6\ | METAL,LOWER | 50816- |