| Item | Part No. | Part Name | Qty | Serial No. |
| 21K-63-56301 | BOOM CYLINDER ASS'Y,L.H. \ | 1001- | ||
| 21K-63-56401 | BOOM CYLINDER ASS'Y,R.H. \ | 1001- | ||
| 21K-63-56310 | CYLINDER SUB ASS'Y,\ | 1001- | ||
| 1 | 21K-63-56340 | CYLINDER | 1001- | |
| 2 | 707-76-70040 | BUSHING | 1001- | |
| 3 | 07145-00070 | SEAL,DUST (KIT) | 1001- | |
| 4 | 07020-00000 | FITTING,GREASE | 1001- | |
| 5 | 707-27-11070 | HEAD,CYLINDER | 1001- | |
| 6 | 07177-07530 | BUSHING | 1001- | |
| 7 | 707-51-75211 | PACKING,ROD (KIT) | 1001- | |
| 8 | 144-63-94170 | SEAL,DUST (KIT) | 1001- | |
| 9 | 07179-00097 | RING,SNAP | 1001- | |
| 10 | 07000-12105 | O-RING (KIT) | 1001- | |
| 11 | 07146-02106 | RING,BACK-UP (KIT) | 1001- | |
| 12 | 01010-82475 | BOLT | 1001- | |
| 13 | 01602-22472 | WASHER,SPRING | 1001- | |
| 14 | 21K-63-56320 | ROD,PISTON | 1001- | |
| 15 | 707-76-70040 | BUSHING | 1001- | |
| 16 | 07145-00070 | SEAL,DUST (KIT) | 1001- | |
| 17 | 707-40-11480 | RETAINER | 1001- | |
| 18 | 707-36-11480 | PISTON | 1001- | |
| 19 | 707-44-11080 | RING,PISTON (KIT) | 1001- | |
| 20 | 07155-01125 | RING,WEAR (KIT) | 1001- | |
| 21 | 07165-15860 | NUT,\ | 1001- | |
| 22 | 21K-63-56380 | TUBE,L.H. | 1001- | |
| 22 | 21K-63-56480 | TUBE,R.H. | 1001- | |
| 23 | 21K-63-56370 | TUBE,L.H. | 1001- | |
| 23 | 21K-63-56470 | TUBE,R.H. | 1001- | |
| 24 | 07000-13030 | O-RING (KIT) | 1001- | |
| 25 | 01010-50840 | BOLT | 1001- | |
| 26 | 01010-50855 | BOLT | 1001- | |
| 27 | 01602-20825 | WASHER,SPRING | 1001- | |
| 28 | 707-88-10670 | PLATE | 1001- | |
| 29 | 01010-51025 | BOLT | 1001- | |
| 30 | 01643-31032 | WASHER | 1001- | |
| 31 | 07283-22738 | CLIP | 1001- | |
| 32 | 01599-01011 | NUT | 1001- | |
| 33 | 01643-31032 | WASHER | 1001- |