| Item | Part No. | Part Name | Qty | Serial No. |
| 421-64-15600 | VALVE ASSEMBLY, STEERING | |||
| 1 | 421-64-15650 | CONTROL ASSEMBLY | ||
| 2 | 416-64-15190 | SPRING | ||
| 3 | 416-64-15410 | PIN | ||
| 4 | 416-64-15160 | PLATE, SPACER | ||
| 5 | 416-64-15170 | DRIVE | ||
| 6 | 421-64-15620 | GEROTER | ||
| 7 | 421-64-15630 | SPACER | ||
| 8 | 416-64-15130 | CAP, END | ||
| 9 | 416-64-15520 | O-RING | ||
| 10 | 421-64-15610 | SCREW | ||
| 11 | 416-64-15470 | RETAINER | ||
| 12 | 416-64-15460 | BALL | ||
| 13 | 416-64-15440 | SEAT, CHECK | ||
| 14 | 416-64-15450 | O-RING | ||
| 15 | 416-64-15420 | SCREW, SET | ||
| 16 | 416-64-15430 | O-RING | ||
| 416-64-15480 | BEARING ASSEMBLY | |||
| 17 | 416-64-15490 | RACE, BEARING | ||
| 18 | 416-64-15510 | BEARING, NEEDLE | ||
| 19 | 416-64-15570 | O-RING | ||
| 20 | 416-64-15590 | RING, BACK-UP | ||
| 21 | 416-64-15580 | SEAL | ||
| 22 | 416-64-15560 | O-RING | ||
| 23 | 416-64-15540 | BUSHING | ||
| 24 | 416-64-15530 | RING | ||
| 25 | 416-64-15550 | SEAL, DUST | ||
| 416-64-15500 | KIT, VALVE SERVICE | |||
| F1 - ALSO INCLUDED IN SERVICE KIT 416-64-15500. | ||||
| F2 - REPLACE ENTIRE UNIT WITH 421-64-A1102. | ||||