| Item | Part No. | Part Name | Qty | Serial No. |
| (363-17-31402) | PUMP ASS'Y,(A4VG28DA-931-0) | 21212- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1610-01A0B T0 Y1610-07A0B . | ||||
| THE UCHIDA YUATSU KIKI PART NUMBER IS THAT UC IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| UCH9118R7702-0 | PUMP ASS'Y,GEAR | 21212- | ||
| UCH9309R9326-0 | PUMP ASS'Y,GEAR | 21212- | ||
| 1 | UC1100447836 | FRAME | 21212- | |
| 2 | UC1100542683 | HOUSING | 21212- | |
| 3 | UC1100542692 | GEAR | 21212- | |
| 4 | UC1100262689 | GEAR | 21212- | |
| 5 | UC1100238229 | PLATE | 21212- | |
| 6 | UC1100240149 | METAL | 21212- | |
| 7 | UC1100238247 | RING, BACK-UP | 21212- | |
| 8 | UC1100022804 | PIN | 21212- | |
| 9 | UC1100238238 | RING | 21212- | |
| 10 | UC1100330893 | COUPLING | 21212- | |
| 11 | UC1302149006 | RING | 21212- | |
| 12 | UC1301572001 | BOLT | 21212- | |
| 13 | 02891-02053 | O-RING | 21212- | |
| 14 | UC1100558624 | FRAME | 21212- | |
| 15 | UC1100447827 | CASE | 21212- | |
| 16 | UC1100558376 | GEAR | 21212- | |
| 17 | UC1100489821 | GEAR | 21212- | |
| 18 | UC1100463618 | PLATE | 21212- | |
| 19 | UC1100463627 | PLATE | 21212- | |
| 20 | UC1100461052 | METAL | 21212- | |
| 21 | UC1164034001 | PLATE KIT | 21212- | |
| 22 | UC1164035004 | GUIDE | 21212- | |
| 23 | UC1302125009 | RING | 21212- | |
| 24 | UC1302157007 | RING | 21212- | |
| 25 | UC1100022822 | O-RING | 21212- | |
| 26 | UC1303030939 | SEAL | 21212- | |
| 27 | UC1100026237 | RING | 21212- | |
| 28 | UC1100219199 | RING | 21212- | |
| 29 | UC1303005686 | BOLT | 21212- | |
| 30 | UC1700843052 | SEAL | 21212- | |
| 31 | UC1100022804 | PIN | 21212- | |
| 32 | UC4100463156 | NAME PLATE ASS'Y | 21212- |