| Item | Part No. | Part Name | Qty | Serial No. |
| 421-S99-3450 | Valve Assembly | 75042- | ||
| 1 | 421-S99-3210 | Spring | 75042- | |
| 2 | 421-S99-3220 | Plug | 75042- | |
| 3 | 421-S99-3230 | O-ring | 75042- | |
| 4 | 421-S99-3240 | O-ring | 75042- | |
| 5 | 421-S99-3260 | Cap | 75042- | |
| 6 | 421-S99-3270 | Socket | 75042- | |
| 7 | KBC0813-00001 | Valve, Solenoid | 75042- | |
| 262-61-13920 | O-ring | 75042- | ||
| 8 | 421-S99-3290 | Plug | 75042- | |
| 9 | 421-S99-3310 | Adjuster Kit | 75042- | |
| 10 | 421-S99-3320 | O-ring | 75042- | |
| 11 | 421-S99-3330 | Plunger | 75042- | |
| 12 | 421-S99-3340 | Spring | 75042- | |
| 13 | 421-S99-3350 | Seat, Spring | 75042- | |
| 14 | 421-S99-3360 | Plug Assembly | 75042- | |
| 15 | 421-S99-3370 | Valve Assembly | 75042- | |
| 16 | 421-S99-3380 | Spacer | 75042- | |
| 17 | 07000-B2010 | O-ring | 75042- | |
| 18 | 421-S99-3390 | Ring, Back-up | 75042- | |
| 19 | 421-S99-3410 | Spring | 75042- | |
| 20 | 421-S99-3420 | Poppet | 75042- | |
| 21 | 421-S99-3430 | Plug Assembly | 75042- | |
| 22 | 421-S99-3440 | Plug Assembly | 75042- | |
| 23 | 421-S99-3560 | Spring | 75042- | |
| 24 | 421-S99-3570 | Plug Assembly | 75042- | |
| 25 | Spool | 75042- |