| Item | Part No. | Part Name | Qty | Serial No. |
| YM721550-51700 | INJECTION PUMP A. | 20425- | ||
| 1 | \6\ | BODY | 20425- | |
| 2 | YM121550-51100 | PLUNGER | 20425- | |
| 3 | YM124950-51270 | PACKING | 20425- | |
| 4 | YM124060-51300 | VALVE ASS'Y,DELIVERY | 20425- | |
| 5 | YM124550-51350 | GASKET | 20425- | |
| 6 | YM124550-51320 | SPRING | 20425- | |
| 7 | YM124550-51341 | HOLDER | 20425- | |
| 8 | YM124550-51370 | O-RING | 20425- | |
| 9 | YM124950-51510 | PINION | 20425- | |
| 10 | YM174307-51170 | SEAT | 20425- | |
| 11 | YM124950-51190 | SPRING | 20425- | |
| 12 | YM174307-51181 | SEAT | 20425- | |
| 13 | YM174307-51700 | SHIM ASS'Y | 20425- | |
| YM724550-51520 | PLUNGER GUIDE A. | 20425- | ||
| 14 | \6\ | GUIDE | 20425- | |
| YM711100-51540 | TAPPET ROLLER A. | 20425- | ||
| 15 | \6\ | ROLLER | 20425- | |
| 16 | \6\ | ROLLER | 20425- | |
| 17 | YM174100-54120 | PIN | 20425- | |
| 18 | YM121450-51500 | RACK ASS'Y | 20425- | |
| 19 | YM103854-51251 | PIN | 20425- | |
| 20 | YM124950-51640 | ADJUSTING PLATE A. | 20425- | |
| 21 | YM103854-51660 | SCREW,ADJUSTING | 20425- | |
| 22 | YM26587-050102 | SCREW | 20425- | |
| 23 | YM22217-050000 | WASHER,SPRING | 20425- | |
| 24 | YM22117-050000 | WASHER | 20425- | |
| 25 | YM124950-51450 | PIECE | 20425- | |
| 26 | YM121150-51460 | PIN,LOCK | 20425- |