| Item | Part No. | Part Name | Qty | Serial No. |
| 23A-60-11203 | PUMP ASS'Y,TRANSMISSION | 12001- | ||
| THE KAYABA KOGYO PART NUMBER IS THAT KB IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| 1 | KB20132-60620 | COVER | 12001- | |
| 2 | \6\ | PLATE,GEAR | 12001- | |
| 3 | KB20132-60522 | FLANGE | 12001- | |
| KBB530B-00001 | GEAR ASS'Y | 12001- | ||
| 4 | \6\ | GEAR,DRIVE | 12001- | |
| 5 | \6\ | GEAR,DRIVEN | 12001- | |
| 6 | KB20131-60720 | PLATE | 12001- | |
| 7 | \6\ | SEAL,PLATE (K3) | 12001- | |
| 8 | \6\ | RING,BACK-UP (K3) | 12001- | |
| 9 | KB20131-61401 | BOLT | 12001- | |
| 10 | KB20131-61801 | WASHER | 12001- | |
| 11 | \6\ | SEAL,OIL (K3) | 12001- | |
| 12 | \6\ | RING,SNAP (K3) | 12001- |