| Item | Part No. | Part Name | Qty | Serial No. |
| 26C-61-11300 | PUMP ASS'Y,WORK EQUIPMENT | 10001-11000 | ||
| THE KAYABA KOGYO PART NUMBER IS THAT KB IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| 1 | \6\ | BODY,FRONT | 10001-11000 | |
| 2 | \6\ | BODY,REAR | 10001-11000 | |
| 3 | KB20131-20421 | FLANGE | 10001-11000 | |
| 4 | KB20132-30321 | PLATE ASS'Y,CENTER | 10001-11000 | |
| 5 | KB20131-20621 | COVER | 10001-11000 | |
| KB2013B-30026 | GEAR ASS'Y,FRONT | 10001-11000 | ||
| 6 | \6\ | GEAR,DRIVE | 10001-11000 | |
| 7 | \6\ | GEAR,DRIVEN | 10001-11000 | |
| 8 | \6\ | BUSHING | 10001-11000 | |
| 9 | \6\ | BUSHING | 10001-11000 | |
| \6\ | GEAR,REAR | 10001-11000 | ||
| 10 | \6\ | GEAR,DRIVE | 10001-11000 | |
| 11 | \6\ | GEAR,DRIVEN | 10001-11000 | |
| 12 | \6\ | BUSHING | 10001-11000 | |
| 13 | \6\ | BUSHING | 10001-11000 | |
| 14 | \6\ | RING,BACK-UP (K2) | 10001-11000 | |
| 15 | \6\ | SEAL,OIL (K2) | 10001-11000 | |
| 16 | \6\ | O-RING (K2) | 10001-11000 | |
| 17 | \6\ | SEAL,OIL (K2) | 10001-@ | |
| 18 | \6\ | RING,SNAP (K2) | 10001-@ | |
| 19 | KB20131-30534 | BOLT | 10001-11000 | |
| 20 | KB94101-10251 | WASHER,SPRING | 10001-11000 |