| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 421-43-H7420 | RESERVOIR ASS'Y | -30551 | |
| 1A | 421-43-H7421 | RESERVOIR ASS'Y | 30552- | |
| 2 | 421-43-H0P39 | VALVE BLOCK | ||
| 3 | 421-43-H0P40 | COVER | ||
| 4 | 421-43-H0P41 | SCREW | ||
| 5 | 421-43-H0P42 | O-RING | ||
| 6 | 421-43-H0P43 | FILTER ELEMENT | ||
| 7 | 421-43-H0P44 | PILOT | ||
| 8 | 421-43-H0P45 | PRESSURE LIMIT.VALVE | ||
| 8A | 421-43-H0P97 | PRESSURE VALVE | ||
| 9 | 421-43-H0P46 | PLUG | ||
| 10 | 421-43-H0P47 | RESERVOIR | ||
| 11 | 421-43-H0P48 | O-RING | ||
| 12 | 421-43-H0P49 | CHECK VALVE | ||
| 13 | 421-43-H0P53 | SCREW | ||
| 14 | 421-43-H0P54 | REDUCER | ||
| 15 | 421-43-H0P55 | PLUG | ||
| 16 | 421-43-H0P56 | RESERVOIR | ||
| 16A | 421-43-H0R05 | SEAL | ||
| 17 | 421-43-H0P57 | ARBOR | ||
| 18 | 421-43-H0P58 | O-RING | ||
| 19 | 421-43-H0P59 | SCREW | ||
| 20 | 421-43-H0P60 | BY-PASS VALVE | ||
| 21 | 421-43-HOP61 | CLIP | ||
| 22 | 421-43-H0P77 | SCREW | ||
| 23 | 421-43-H0P78 | NUT | ||
| 24 | 421-43-H0P79 | SCREW | ||
| 25 | 421-43-H0R01 | PRESSURE SWITCH | ||
| 26 | 421-43-H0R02 | O-RING | ||
| 27 | 421-43-H0R03 | O-RING | ||
| 28 | 421-43-H0P80 | PACKING KIT |