| Item | Part No. | Part Name | Qty | Serial No. |
| 125-21-00021 | STEERING CASE ASS'Y | 1801- | ||
| 125-21-00020 | MAIN FRAME ASS'Y | 1501-1800 | ||
| 1 | 125-21-21211 | CASE AND FRAME | 1801- | |
| 1 | 125-21-21100 | CASE AND FRAME | 1501-1800 | |
| 2 | 131-21-41450 | CAP | 1501- | |
| 3 | 01122-62090 | STUD | 1501- | |
| 4 | 01592-02022 | NUT | 1501- | |
| 5 | 04050-04040 | PIN | 1501- | |
| 6 | 04020-00616 | PIN | 1501- | |
| 7 | 01010-30816 | BOLT | 1801- | |
| 7 | 01010-30812 | BOLT | 1501-1800 | |
| 8 | 130-21-12322 | LOCK | 1501- | |
| 9 | 110-21-12180 | LOCK | 1501- | |
| 10 | 07044-13620 | PLUG | 1501- | |
| 11 | 07002-03634 | O-RING | 1501- | |
| 12 | 07040-13018 | PLUG | 1801- | |
| 12 | 135-27-11151 | PLUG | 1501-1800 | |
| 13 | 07002-03634 | O-RING | 1501- | |
| 14 | 125-21-21351 | CAP | 1501- | |
| 15 | 01010-32280 | BOLT | 1501- | |
| 16 | 01643-32260 | WASHER | 1501- | |
| 17 | 130-21-41261 | PLATE | 1501- | |
| 18 | 01010-31425 | BOLT | 1501- | |
| 19 | 01602-01442 | WASHER | 1501- | |
| 20 | 135-21-21240 | PLATE | 1501- | |
| 21 | 01010-32035 | BOLT | 1801- | |
| 21 | 01010-32040 | BOLT | 1501-1800 | |
| 22 | 01643-32060 | WASHER | 1501- | |
| 23 | 07049-02430 | PLUG | 1801- | |
| 23 | 07049-02430 | PLUG | 1501-1800 | |
| 24 | 135-21-11232 | GAUGE | 1801- | |
| 25 | 07000-03038 | O-RING | 1801- |