| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | YM705190-01560 | CYLINDER BLOCK ASS'Y | 2501- | |
| 2 | YM22351-060012 | PIN,SPRING | 2501- | |
| 3 | YM105190-01670 | PLUG | 2501- | |
| 4 | YM105190-01680 | PLUG | 2501- | |
| 5 | YM105190-01480 | COVER | 2501- | |
| 6 | YM26106-060202 | BOLT | 2501- | |
| 7 | YM105100-01820 | PLUG | 2501-2755 | |
| 8 | YM705200-01900 | LINER,CYLINDER | 2501- | |
| 9 | YM105100-01300 | O-RING | 2501- | |
| 10 | YM705100-02500 | HOUSING ASS'Y | 2501- | |
| 11 | YM123325-02500 | SEAL | 2501- | |
| 12 | YM105100-02300 | BEARING,BALL | 2501- | |
| 13 | YM106100-02331 | RETAINER | 2501- | |
| 14 | YM26116-050082 | BOLT | 2501- | |
| 15 | YM105100-02310 | BEARING,BALL | 2501- | |
| 16 | YM105100-02020 | GASKET | 2501- | |
| 17 | YM26226-080222 | STUD | 2756- | |
| YM26226-080202 | STUD | 2501-2755 | ||
| 18 | YM26716-080002 | NUT | 2501- | |
| 19 | YM22217-080000 | WASHER,SPRING | 2501- | |
| 20 | YM977770-01212 | LIQUID GASKET | 2501- |