| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 23F-23-21111 | CASE ASS'Y,L.H. | 12065- | |
| 23F-23-21110 | CASE ASS'Y,L.H. | 12019-12064 | ||
| 23F-23-21121 | CASE ASS'Y,R.H. | 12065- | ||
| 23F-23-21120 | CASE ASS'Y,R.H. | 12019-12064 | ||
| 2 | 23F-25-11160 | SEAT (WELDED) | 12019- | |
| 3 | 23F-25-11150 | SEAT (WELDED) | 12019- | |
| 4 | 23F-25-11130 | SEAT (WELDED) | 12019- | |
| 5 | 23F-25-11120 | SEAT (WELDED) | 12019- | |
| 6 | 07044-12412 | PLUG (K7) | 12019- | |
| 7 | 07002-12434 | O-RING (K7) | 12019- | |
| 8 | 234-25-31120 | COVER | 12019- | |
| 9 | 23F-25-11140 | COVER | 12019- | |
| 10 | 234-25-31450 | GASKET (K7) | 12019- | |
| 11 | 01010-81230 | BOLT | .- | |
| \0\01010-51230 | BOLT | 12019-. | ||
| 12 | 01643-31232 | WASHER | 12019- | |
| 13 | 07040-12412 | PLUG (K7) | 12019- | |
| 14 | 07002-12434 | O-RING (K7) | 12019- | |
| 15 | 234-25-31150 | COVER | 12019- | |
| 16 | 234-25-31160 | COVER | 12019- | |
| 17 | 235-25-11160 | GASKET (K7) | 12019- | |
| 18 | 07030-10252 | BREATHER | 12019- | |
| 19 | 01010-81230 | BOLT | .- | |
| \0\01010-51230 | BOLT | 12019-. | ||
| 20 | 01643-31232 | WASHER | 12019- | |
| 21 | 234-25-31511 | COVER | 12065- | |
| 234-25-31510 | COVER | 12019-12064 | ||
| 22 | 01010-81225 | BOLT | .- | |
| \0\01010-51225 | BOLT | 12019-. |