| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 421-64-H1100 | STEERING UNIT | ||
| 2 | 421-64-H0P01 | SEAL | ||
| 3 | HOUSING | |||
| 4 | 421-64-H0P02 | BALL | ||
| 5 | 421-64-H0P03 | BUSHING | ||
| 6 | 421-64-H0P04 | O-RING | ||
| 7 | 421-64-H0P05 | RING | ||
| 8 | 421-64-H0P06 | BEARING | ||
| 9 | 421-64-H0P07 | RING | ||
| 10 | 421-64-H0P08 | PIN | ||
| 11 | 421-64-H0P09 | SHAFT | ||
| 12 | 421-64-H0P10 | SPRING | ||
| 13 | 421-64-H0P11 | O-RING | ||
| 14 | 421-64-H0P12 | DISTRIBUTOR | ||
| 15 | 421-64-H0P13 | GEAR | ||
| 16 | 421-64-H0P14 | O-RING | ||
| 17 | 421-64-H0P15 | COVER | ||
| 18 | 421-64-H0P16 | DISC | ||
| 19 | 421-64-H0P17 | SCREW | ||
| 20 | 421-64-H0P18 | SCREW | ||
| 21 | 421-64-H0P21 | GASKET KIT |