| Item | Part No. | Part Name | Qty | Serial No. |
| 273-40-12120 | VALVE ASS'Y,STEERING | 20003- | ||
| 1 | \6\ | SEAL,DUST (K2) | 20003- | |
| 2 | 273-40-12420 | RING | 20003- | |
| 3 | 273-40-12430 | BUSHING | 20003- | |
| 4 | \6\ | O-RING (K2) | 20003- | |
| 5 | \6\ | SEAL,OIL (K2) | 20003- | |
| 273-40-12460 | BEARING ASS'Y | 20003- | ||
| 6 | 273-40-12470 | BEARING,RACE | 20003- | |
| 7 | 273-40-12480 | NEEDLE | 20003- | |
| 8 | 273-40-12490 | SCREW,SET | 20003- | |
| 9 | \6\ | O-RING (K2) | 20003- | |
| 10 | 273-40-12520 | SEAT,CHECK | 20003- | |
| 11 | \6\ | O-RING (K2) | 20003- | |
| 12 | 273-40-12540 | BALL | 20003- | |
| 13 | 273-40-12550 | RETAINER | 20003- | |
| 273-40-12560 | CONTROL ASS'Y,VALVE | 20003- | ||
| 14 | \6\ | HOUSING | 20003- | |
| 15 | \6\ | SLEEVE,CONTROL | 20003- | |
| 16 | \6\ | SPOOL,CONTROL | 20003- | |
| 17 | 273-40-12610 | SPRING,CENTER RING | 20003- | |
| 18 | 273-40-12620 | PIN | 20003- | |
| 19 | \6\ | O-RING (K2) | 20003- | |
| 20 | 273-40-12640 | PLATE,SPACER | 20003- | |
| 21 | 273-40-12650 | SHAFT | 20003- | |
| 22 | 273-40-12660 | ROTOR | 20003- | |
| 23 | 273-40-12670 | CAP,END | 20003- | |
| 24 | 273-40-12680 | SCREW | 20003- |