| Item | Part No | Part Name | Unit Qty |
| N* | 61N4-19000 | Boom Assy-2pcs 1st | 1 |
| N1-1 | 61N4-19010 | . Body-Boom 1 | 1 |
| 1-2 | 61EN-12010 | . Bushing-Pin | 2 |
| 1-3 | S700-070206 | . Seal-Dust | 2 |
| 1-4 | S651-810002 | . Nipple-Grease | 1 |
| N* | 61N4-19500 | Boom Assy-2pcs 2nd | 1 |
| N2-1 | 61N4-19510 | . Body-Boom | 1 |
| 2-2 | X122-702090 | . Bushing-Pin | 2 |
| 2-3 | S700-070206 | . Seal-Dust | 2 |
