| Item | Part No. | Part Name | Qty | Serial No. |
| 23A-60-11301 | PUMP ASS'Y | 15057- | ||
| 23A-60-11300 | PUMP ASS'Y | 15001-15056 | ||
| THE KAYABA KOGYO PART NUMBER IS THAT KB IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| 1 | KB20121-30101 | COVER | 15001- | |
| 2 | \6\ | BODY | 15057- | |
| 2 | (\7\KB20122-46032) | BODY | 15001-15056 | |
| 3 | \6\ | BODY | 15057- | |
| 3 | (\7\KB20122-36091) | BODY | 15001-15056 | |
| 4 | KB20121-40105 | PLATE | 15001- | |
| KB2012B-40033 | GEAR ASS'Y,FRONT | 15001- | ||
| 5 | (\7\KB20122-30411) | BUSHING | 15001- | |
| 6 | (\7\KB20122-30412) | BUSHING | 15001- | |
| 7 | (\7\KB20121-46108) | GEAR,DRIVE | 15001- | |
| 8 | (\7\KB20121-36208) | GEAR,DRIVEN | 15001- | |
| KB2012B-40034 | GEAR ASS'Y,REAR | 15001- | ||
| 9 | (\7\KB20122-30411) | BUSHING | 15001- | |
| 10 | (\7\KB20122-30412) | BUSHING | 15001- | |
| 11 | (\7\KB20121-56105) | GEAR,DRIVE | 15001- | |
| 12 | (\7\KB20121-36205) | GEAR,DRIVEN | 15001- | |
| 13 | KB20121-30705 | FLANGE | 15001- | |
| 14 | (\7\KB20121-30801) | SEAL (K7) | 15001- | |
| 15 | (\7\KB20121-30901) | SEAL (K7) | 15001- | |
| 16 | (\7\KB20121-31001) | PACKING (K7) | 15001- | |
| 17 | (\7\KB20121-31101) | PACKING (K7) | 15001- | |
| 18 | KB20121-41265 | BOLT | 15001- | |
| 19 | KB94101-10250 | WASHER,SPRING | 15001- | |
| 20 | (\7\KB20121-31409) | SEAL,OIL (K7) | 15001- | |
| 21 | KB20121-41802 | COUPLING | 15001- | |
| 22 | (\7\KB94721-32121) | RING,SNAP (K7) | 15001- |