| Item | Part No. | Part Name | Qty | Serial No. |
| (6128-71-1122) | INJECTION PUMP ASS'Y | 55407- | ||
| (\0\6128-71-1121) | INJECTION PUMP ASS'Y | 53499-55406 | ||
| (\1\6128-71-1120) | INJECTION PUMP ASS'Y | 50816-53498 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.0451 TO 0481. | ||||
| THE ZEXEL PART NUMBER IS THAT DK IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| DK105237-1700 | FEED PUMP ASS'Y | 50816- | ||
| 1 | DK152004-1720 | HOUSING | 50816- | |
| 2 | DK152100-1120 | PISTON | 50816- | |
| 3 | DK152102-1600 | SPRING,PISTON | 50816- | |
| 4 | DK152105-1500 | PLUG | 50816- | |
| 5 | DK029332-6030 | GASKET | 50816- | |
| 6 | DK152111-4020 | TAPPET | 50816- | |
| 7 | DK152115-0500 | VALVE | 50816- | |
| 8 | DK152116-0200 | SPRING | 50816- | |
| 9 | DK152117-0400 | PLUG | 50816- | |
| 10 | DK029331-6030 | GASKET | 50816- | |
| 11 | DK029631-6060 | O-RING | 50816- | |
| 12 | DK152121-0400 | RING,SNAP | 50816- | |
| 13 | DK152200-5320 | PUMP,PRIMING | 50816- | |
| 14 | DK152300-3620 | BOLT,EYE | 50816- | |
| 15 | DK029731-4680 | BOLT,EYE | 50816- | |
| 16 | DK029711-4430 | EYE | 50816- | |
| 17 | DK029341-4130 | GASKET | 50816- | |
| 18 | DK152320-0100 | COVER | 50816- |