| Item | Part No. | Part Name | Qty | Serial No. |
| UCBA211S9121-0 | PISTON PUMP,REAR | | 1801- |
| 1 | (UC4100528639) | ROTARY GROUP,(SEE FIG. Y1610-12A0A) | | 1201- |
| 2 | (UC4100647446) | CYLINDER,(SEE FIG. Y1610-08A0B) | | 1801- |
| 3 | (UC4100637779) | COVER,(SEE FIG. Y1610-15A0C) | | 1801- |
| 4 | (UC4100647381) | HD CONTROL,(SEE FIG. Y1610-03A0B) | | 1801- |
| 5 | \6\ | HOUSING | | 1801- |
| 6 | UC1709212723 | PIN | | 1201- |
| 7 | UC4100104453 | PLUG | | 1801- |
| UC1180791009 | PLUG | | 1801- |
| UC1301205004 | O-RING | | 1801- |
| 8 | UC4100104426 | PLUG | | 1801- |
| UC1198273603 | PLUG | | 1801- |
| UC1301169009 | O-RING | | 1801- |
| 9 | UC4100104417 | PLUG | | 1801- |
| UC1198273502 | PLUG | | 1801- |
| UC1301157006 | O-RING | | 1801- |
| 10 | \6\ | PLUG | | 1201- |
| 11 | UC1708300306 | ORIFICE | | 1201- |
| 12 | \6\ | SPRING PIN | | 1801- |
| 13 | UC1701533646 | PLUG | | 1201- |
| 14 | UC1704358567 | PIN | | 1801- |
| 15 | UC1701532717 | NUT | | 1201- |
| 16 | UC1701519796 | PLUG | | 1201- |
| 17 | UC1100563424 | BUSHING | | 1801- |
| 18 | UC1301168006 | O-RING | | 1801- |
| 19 | UC1701567749 | ORIFICE | | 1801- |
| 20 | UC1198260102 | BUSHING | | 1801- |
| 21 | UC1301207009 | O-RING | | 1801- |
