| Item | Part No. | Part Name | Qty | Serial No. |
| | VALVE, MAIN CONTROL ( SEE FIG. H0120- 02A0 ) OR ( SEE FIG. H0120-03A0 ) | | |
| 27266 | VALVE ASSEMBLY, MAIN BOOM | | A4057-- |
| 1 | 26421 | PLUG, ORIFICE | | A4057-- |
| 2 | 4A1-60-10280 | COMPENSATOR KIT, EK3 (GREEN) | | A4057-- |
| 3 | 26428 | PC KIT, SPRING | | A4057-- |
| 4 | 26431 | SPOOL, XYZ | | A4057-- |
| 5 | 26559 | WASHER, SEAL | | A4057-- |
| 6 | 26550 | BOLT, SPOOL | | A4057-- |
| 7 | 26422 | PLUG, COMPENSATOR | | A4057-- |
| 8 | | END CAP, A SIDE SECTION ( SEE FIG. H0120-20A0 ) | | A4057-- |
| 9 | 26418 | SEAL KIT, EC A SIDE | | A4057-- |
| 10 | 4A1-60-10290 | PORT RELIEF KIT, K220 (320 BAR) | | A4057-- |
| 11 | (NSS) | PLUG, PORT RELIEF | | A4057-- |
| 12 | | END CAP, B SIDE SECTION ( SEE FIG. H0120-20A0 ) | | A4057-- |
| 13 | | SEAL KIT, PC B SIDE ( SEE FIG. H0120- 20A0 ) | | A4057-- |
| 14 | (NSS) | PLUG | | A4057-- |
| 15 | (NSS) | PLUG, ORIFICE | | A4057-- |
