| Item | Part No. | Part Name | Qty | Serial No. |
| (209-60-73503) | MOTOR ASS'Y | K30055-K31999 | ||
| (\1\209-60-73502) | MOTOR ASS'Y | K30011-K30054 | ||
| (\0\209-60-73501) | MOTOR ASS'Y (KIT) | K30001-K30010 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1640-01A0 TO Y1640-03A0. | ||||
| THE KAYABA KOGYO PART NUMBER IS THAT KB IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| KB21960-60116 | VALVE | K30001-K31999 | ||
| 1 | KB95113-01800 | O-RING | K30001-K31999 | |
| 2 | KB21961-40504 | SEAT | K30001-K31999 | |
| 3 | KB21961-60513 | SEAT | K30001-K31999 | |
| 4 | KB21961-60403 | SPRING | K30001-K31999 | |
| 5 | KB21963-60608 | CAP ASS'Y | K30001-K31999 | |
| 6 | KB21961-60301 | VALVE | K30001-K31999 | |
| 7 | KB21961-60412 | SPRING | K30001-K31999 | |
| 8 | KB21961-95014 | PLUG | K30001-K31999 | |
| 9 | KB95113-02900 | O-RING (KIT) | K30001-K31999 | |
| 10 | KB21961-99036 | BOLT | K30001-K31999 | |
| 11 | KB97124-01111 | PLUG | K30001-K31999 | |
| SERVICE KIT | ||||
| K | KB2196A-60501 | REPAIR KIT,COUNTER BALANCE VALVE | K30001-K31999 |