| Item | Part No. | Part Name | Qty | Serial No. |
| 23B-40-41102 | VALVE ASS'Y | 51301- | ||
| 1 | \6\ | CONTROL ASS'Y | 51301- | |
| 2 | ST230327 | SPRING | 51301- | |
| 3 | ST15 | PIN | 51301- | |
| 4 | ST7970 | PLATE | 51301- | |
| 5 | ST5126 | DRIVE | 51301- | |
| 6 | ST8436-3 | GEROTOR | 51301- | |
| 7 | ST6901S-9 | SPACER | 51301- | |
| 8 | ST8438S-1 | CAP,END | 51301- | |
| 9 | \6\ | O-RING (KIT) | 51301- | |
| 10 | \6\ | O-RING (KIT) | 51301- | |
| 11 | ST5389-1 | SCREW | 51301- | |
| 12 | ST5389R-001 | SCREW,RETAINER | 51301- | |
| 13 | STBA0097A | BALL | 51301- | |
| 14 | STBA0096A | SCREW,ADAPTER | 51301- | |
| ST64009 | BEARING | 51301- | ||
| 15 | ST8329 | RACE | 51301- | |
| 16 | ST5544 | BEARING | 51301- | |
| 17 | \6\ | SEAL,OIL (KIT) | 51301- | |
| 18 | \6\ | O-RING (KIT) | 51301- | |
| 19 | ST8703 | BUSHING | 51301- | |
| 20 | ST14317 | RING | 51301- | |
| 21 | \6\ | SEAL,DUST (KIT) | 51301- | |
| 22 | \6\ | VALVE SUB ASS'Y | 51301- | |
| 23 | ST21785 | RETAINER | 51301- | |
| 24 | ST230313 | SPRING | 51301- | |
| 25 | ST18015 | BALL | 51301- | |
| 26 | \6\ | SEAT | 51301- | |
| 27 | \6\ | BALL | 51301- | |
| 28 | \6\ | HOLDER | 51301- | |
| 29 | \6\ | SPRING | 51301- | |
| 30 | \6\ | PLUG | 51301- | |
| 31 | \6\ | O-RING | 51301- | |
| SERVICE KIT | ||||
| 1 | STBA0273A | SERVICE KIT,ORBITROL | 51301- |