| Item | Part No | Part Name | Unit Qty |
| * | 31N6-53110 | Cylinder Assy-Boom Rh | 1 |
| N* | 31N6-53120 | Cylinder Assy-Boom Lh | 1 |
| N*-1 | 31Y1-21600 | . Cylinder Assy-Boom Wo:Pipe | 1 |
| N1 | 31Y1-20600 | .. Tube Assy-Cyl | 1 |
| 2 | 31Y1-15770 | .. Rod Assy-Piston &Bush | 1 |
| N3 | 31Y1-20630 | .. Gland-Cyl | 1 |
| 4 | S732-085030 | .. Bushing-Du | 1 |
| 5 | Y191-092000 | .. Ring-Snap | 1 |
| K6 | Y220-085011 | .. Seal-Rod | 1 |
| K7 | Y180-085020 | .. Ring-Backup | 1 |
| K8 | Y240-085013 | .. Ring-Buffer | 1 |
| K9 | Y110-085011 | .. Wiper-Dust | 1 |
| 10 | Y190-099000 | .. Ring-Snap | 1 |
| K11 | S631-110004 | .. O-Ring | 1 |
| K12 | S641-110003 | .. Ring-Backup | 1 |
| 13 | 31YC-23020 | .. Ring-Cushion | 1 |
| 14 | 31Y1-15810 | .. Piston-Cyl | 1 |
| K15 | S632-075004 | .. O-Ring | 1 |
| K16 | S642-075003 | .. Ring-Backup | 2 |
| K17 | Y420-120000 | .. Seal-Piston | 1 |
| K18 | Y310-120000 | .. Ring-Wear | 2 |
| K19 | Y440-120000 | .. Ring-Dust | 2 |
| 20 | 31YC-66041 | .. Washer-Lock | 1 |
| 21 | 31YC-61243 | .. Nut-Lock | 1 |
| 22 | S109-160804 | .. Bolt-Socket | 12 |
| 28 | 31YC-11115 | .. Bushing-Pin | 1 |
| 29 | 31YC-11245 | .. Bushing-Pin | 1 |
| 30 | Y000-080200 | .. Seal-Dust | 4 |
| N23 | 31Y1-22140 | . Clamp Assy-Band | 2 |
| N23-1 | 31Y1-22150 | .. Clamp Assy-Band | 1 |
| N23-2 | 31YC-32220 | .. Clamp-Band | 1 |
| 23-3 | S071-022730 | .. Bolt-U | 2 |
| N23-4 | S011-100352 | .. Bolt-Hex | 4 |
| 23-5 | S201-101002 | .. Nut-Hex | 4 |
| 23-6 | XCAS-00495 | .. Washer-Spring | 8 |
| N24 | 31Y1-22160 | . Pipe Assy-Rd Lh | 1 |
| N24 | 31Y1-22170 | . Pipe Assy-Rd Rh | 1 |
| 25 | 31Y1-22180 | . Pipe Assy-Bs Lh | 1 |
| 25 | 31Y1-22190 | . Pipe Assy-Bs Rh | 1 |
| K26 | Y171-019004 | . O-Ring | 2 |
| 27 | XCAV-00128 | . Bolt-Socket | 8 |
| K | 31Y1-18061 | Seal Kit-Cyl | 1 |
| K | 31Y1-18061ED | Seal Kit-Cyl | 1 |
