| Item | Part No. | Part Name | Qty | Serial No. |
| G-1 | (\8\21W-63-X2310) | CYLINDER GROUP,BOOM | 10371- | |
| G-1 | (\8\21W-63-X2131) | CYLINDER GROUP,BOOM | 5001-10370 | |
| ==================== | ||||
| 21W-63-02310 | CYLINDER ASS'Y,BOOM | 10371- | ||
| 21W-63-02131 | CYLINDER ASS'Y,BOOM | 5001-10370 | ||
| 1 | 21W-63-56840 | CYLINDER,BOOM | 10371- | |
| 1 | 21W-63-56541 | CYLINDER,BOOM | 5001-10370 | |
| 2 | 707-76-65170 | BUSHING | 5001- | |
| 3 | 07145-00065 | SEAL,DUST (KIT) | 5001- | |
| 4 | 07020-00000 | FITTING,GREASE | 5001- | |
| 5 | 707-29-12850 | HEAD,CYLINDER | 10371- | |
| 5 | 707-29-12350 | HEAD,CYLINDER | 5001-10370 | |
| 6 | 707-52-10700 | BUSHING | 5001- | |
| 7 | 707-51-70211 | PACKING,ROD (KIT) | 5001- | |
| 8 | 144-63-95170 | SEAL,DUST (KIT) | 5001- | |
| 9 | 07179-12084 | RING,SNAP | 5001- | |
| 10 | 07000-12115 | O-RING (KIT) | 10371- | |
| 10 | 07000-12115 | O-RING (KIT) | 5001-10370 | |
| 11 | 07146-02116 | RING,BACK-UP (KIT) | 10371- | |
| 11 | 07146-02116 | RING,BACK-UP (KIT) | 5001-10370 | |
| 12 | 07000-02120 | O-RING (KIT) | 5001- | |
| 13 | 21W-63-56820 | ROD,PISTON | 10371- | |
| 13 | 21W-63-56520 | ROD,PISTON | 5001-10370 | |
| 14 | 707-76-65330 | BUSHING | 10371- | |
| 14 | 707-76-65270 | BUSHING | 5001-10370 | |
| 15 | 07145-00065 | SEAL,DUST (KIT) | 5001- | |
| 16 | 707-71-60780 | PLUNGER | 5001-10370 | |
| 17 | 707-40-11370 | SPACER | 5001-10370 | |
| 18 | 707-36-12170 | PISTON | 5001- | |
| 19 | 707-44-12180 | RING,PISTON (KIT) | 5001- | |
| 20 | 07156-01215 | RING,WEAR (KIT) | 5001- | |
| 21 | 07165-15252 | NUT | 5001- | |
| 22 | 21W-63-56870 | TUBE | 10371- | |
| 22 | 21W-63-56570 | TUBE | 5001-10370 | |
| 23 | 21W-63-56582 | TUBE | 6044- | |
| 23 | \0\21W-63-56581 | TUBE | 5001-6043 | |
| 24 | 01010-51020 | BOLT | 5001- | |
| 25 | 01643-31032 | WASHER | 5001- | |
| 26 | 07283-22236 | CLIP | 5001- | |
| 27 | 01599-01011 | NUT | 5001- | |
| 28 | 01643-31032 | WASHER | 5001- | |
| ==================== |