| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 20K-63-31900 | CYLINDER ASS'Y,BOOM | K40001- | |
| 2 | (702-21-08330) | PILOT VALVE,L.H. (SEE FIG.Y1679-11A0) | K40001- | |
| (702-21-08350) | PILOT VALVE,R.H. (SEE FIG.Y1679-12A0) | K40001- | ||
| 3 | 07000-13030 | O-RING | K40001- | |
| 4 | 07372-21060 | BOLT | K40001- | |
| 5 | 07372-21050 | BOLT | K40001- | |
| 6 | 01643-51032 | WASHER | K40001- | |
| 7 | 20K-62-35760 | TUBE,L.H. | K40001- | |
| 20K-62-35780 | TUBE,R.H. | K40001- | ||
| 8 | 07000-13030 | O-RING | K40001- | |
| 9 | 07372-21035 | BOLT | K40001- | |
| 10 | 01643-51032 | WASHER | K40001- | |
| 11 | 20K-62-35750 | TUBE,L.H. | K40001- | |
| 20K-62-35770 | TUBE,R.H. | K40001- | ||
| 12 | 07000-13030 | O-RING | K40001- | |
| 13 | 07372-21060 | BOLT | K40001- | |
| 14 | 07372-21045 | BOLT | K40001- | |
| 15 | 01643-51032 | WASHER | K40001- | |
| 16 | 20K-63-31460 | CLAMP,L.H. | K40001- | |
| 20K-63-31470 | CLAMP,R.H. | K40001- | ||
| 17 | 206-63-K1830 | BAND | K40001- | |
| 18 | 01010-81035 | BOLT | K40001- | |
| 19 | 01643-51032 | WASHER | K40001- | |
| 20 | 07283-32738 | CLIP | K40001- | |
| 21 | 01599-01011 | NUT | K40001- | |
| 22 | 01643-31032 | WASHER | K40001- |