| Item | Part No. | Part Name | Qty | Serial No. |
| 23E-60-11201 | PUMP ASS'Y | 4028- | ||
| 23E-60-11200 | PUMP ASS'Y | 4001-4027 | ||
| THE KAYABA KOGYO PART NUMBER IS THAT KB IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| 1 | KB20121-30705 | FLANGE | 4001- | |
| 2 | \6\ | BODY | 4028- | |
| \6\ | BODY | 4001-4027 | ||
| 3 | KB20121-30101 | COVER | 4001- | |
| 4 | \6\ | GEAR,DRIVE (K3) | 4001- | |
| 5 | \6\ | GEAR,DRIVEN (K3) | 4001- | |
| 6 | \6\ | BUSHING (K3) | 4001- | |
| 7 | \6\ | BUSHING (K3) | 4001- | |
| 8 | \6\ | PACKING,RING (K4) | 4001- | |
| 9 | \6\ | PACKING,RING (K4) | 4001- | |
| 10 | \6\ | SEAL,BODY (K4) | 4001- | |
| 11 | \6\ | SEAL (K4) | 4001- | |
| 12 | KB20121-31285 | BOLT | 4001- | |
| 13 | KB94101-10250 | WASHER,SPRING | 4001- | |
| 14 | \6\ | SEAL,OIL (K4) | 4001- | |
| 15 | \6\ | RING,SNAP (K4) | 4001- |