| Item | Part No. | Part Name | Qty | Serial No. |
| G-1 | 20A-63-X2011 | CYLINDER GROUP,BOOM | 1001- | |
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| 20A-63-02011 | CYLINDER ASS'Y,BOOM | 1001- | ||
| 1 | 20A-63-56140 | CYLINDER,BOOM | 1001- | |
| 2 | 20A-70-11120 | BUSHING | 1001- | |
| 3 | 07145-00030 | SEAL,DUST (K1) | 1001- | |
| 4 | 707-29-60050 | HEAD,CYLINDER | 1001- | |
| 5 | 707-51-30210 | PACKING,ROD (K1) | 1001- | |
| 6 | 707-56-30510 | SEAL,DUST (K1) | 1001- | |
| 7 | 07179-12042 | RING,SNAP | 1001- | |
| 8 | 07000-12055 | O-RING (K1) | 1001- | |
| 9 | 07146-02056 | RING,BACK-UP (K1) | 1001- | |
| 10 | 707-35-52560 | RING,BACK-UP (K1) | 1001- | |
| 11 | 07000-02060 | O-RING (K1) | 1001- | |
| 12 | 20A-63-56120 | ROD,PISTON | 1001- | |
| 13 | 20A-70-11120 | BUSHING | 1001- | |
| 14 | 07145-00030 | SEAL,DUST (K1) | 1001- | |
| 15 | 707-71-60331 | PLUNGER | 1001- | |
| 16 | 707-36-60970 | PISTON | 1001- | |
| 17 | 707-44-60070 | RING,PISTON (K1) | 1001- | |
| 18 | 707-39-60190 | RING,WEAR (K1) | 1001- | |
| 19 | 707-40-50160 | RETAINER | 1001- | |
| 20 | 01580-02016 | NUT | 1001- | |
| 21 | 20A-63-56180 | TUBE | 1001- | |
| 22 | 07283-21022 | CLIP | 1001- | |
| 23 | 01598-00608 | NUT | 1001- | |
| 24 | 01643-30623 | WASHER | 1001- | |
| ==================== |