| Item | Part No. | Part Name | Qty | Serial No. |
| 21W-943-0140 | ARM ASS'Y | 4001-5500 | ||
| 1 | \6\ | ARM (YELLOW) | 4001-5500 | |
| 2 | 202-973-6321 | BRACKET (WELDED) | 4001-@ | |
| 3 | 202-973-6331 | BRACKET (WELDED) | 4001-@ | |
| 4 | 21W-70-41360 | BUSHING | 4001-@ | |
| 5 | 20X-70-22140 | BUSHING | 4001-@ | |
| 6 | 21W-70-41620 | BUSHING | 4001-@ | |
| 7 | 07020-00000 | FITTING,GREASE | 4001-@ | |
| 8 | 07020-00900 | FITTING,GREASE | 4001-@ | |
| 9 | 21W-62-44230 | HOSE | 4001-@ | |
| 10 | 201-943-6120 | ELBOW | 4001-@ | |
| 11 | 01010-81030 | BOLT | 4001-@ | |
| 12 | 01643-31032 | WASHER | 4001-@ | |
| 13 | 21W-62-42440 | NIPPLE | 4001-@ | |
| 14 | 02896-11012 | O-RING | 4001-@ | |
| 15 | 07002-12034 | O-RING | 4001-@ | |
| 16 | 21W-62-42530 | ELBOW | 4001-@ | |
| 17 | 02896-11012 | O-RING | 4001-@ | |
| 18 | 07002-12034 | O-RING | 4001-@ | |
| 19 | 201-70-72230 | PIN | 4001-5500 | |
| 20 | 04082-00212 | LOCK | 4001-5500 | |
| 21 | 01010-81230 | BOLT | 4001-@ | |
| 22 | 01643-31232 | WASHER | 4001-@ | |
| 23 | 21Y-70-14770 | SPACER, 1.0MM | 4001-@ | |
| 24 | 07020-00000 | FITTING,GREASE | 4001-@ | |
| 25 | 201-70-72241 | PIN | 4001-@ | |
| 26 | 04082-00212 | LOCK | 4001-@ | |
| 27 | 01010-81230 | BOLT | 4001-@ | |
| 28 | 01643-31232 | WASHER | 4001-@ | |
| 29 | 22C-70-31510 | SPACER, 1.0MM | 4001-@ | |
| 30 | 07020-00000 | FITTING,GREASE | 4001-@ | |
| 31 | 07145-00060 | SEAL,DUST | 4001-@ | |
| 32 | 21W-70-41430 | SEAL,DUST | 4001-@ | |
| 33 | 130-09-12931 | SEAL,DUST | 4001-@ |