| Item | Part No. | Part Name | Qty | Serial No. |
| (361-17-21301) | PUMP ASS'Y,(A4VG28DA-987-2) | | 11270-11895 |
| (361-17-21200) | PUMP ASS'Y,(A4VG28DA-987-1) | | 10842-11269 |
| (361-17-21200) | PUMP ASS'Y,(A4VG28DA-987-0) | | 10222-10841 |
| (361-17-21200) | PUMP ASS'Y,(A4VG28DA-999-1) | | 10001-10221 |
| | THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1610-01A0 TO Y1610-07A0B. | | |
| | THE UCHIDA YUATSU PART NUMBER IS THAT UC IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | | |
| (UCB1043R9639-0) | PUMP ASS'Y,PISTON | | 10842-11895 |
| (UCB1043R9914-0) | PUMP ASS'Y,PISTON | | 10222-10841 |
| (UCC9845A0376-0) | PUMP ASS'Y,PISTON | | 10001-10221 |
| | THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1610-02A0 TO Y1610-06A0. | | |
| (\7\UC4704375889) | ROTARY ASS'Y | | 10001-@ |
| 1 | (\7\UC4100372739) | ROTARY ASS'Y | | 10001-11895 |
| 2 | (\7\UC4100390021) | HANGER ASS'Y | | 10001-11895 |
| 3 | (\7\UC1704152653) | SHAFT | | 10001-@ |
| 4 | (\7\UC1704350572) | GUIDE | | 10001-11895 |
| 5 | UC4100367067 | CASE ASS'Y,SEAL | | 10001-11895 |
| 6 | UC1300271009 | O-RING | | 10001-@ |
| 7 | 04065-06825 | RING,SNAP | | 10001-@ |
| 8 | (\7\UC1704139201) | PIN | | 10001-@ |
| 9 | (\7\UC1704135584) | GUIDE | | 10001-11895 |
| 10 | (\7\UC1708301491) | BEARING | | 10001-11895 |
| 11 | (\7\UC1701566059) | BEARING | | 10001-@ |
| 12 | (\7\04064-02512) | RING,SNAP | | 10001-@ |
