| Item | Part No. | Part Name | Qty | Serial No. |
| 234-60-66300 | VALVE ASS'Y,3-SPOOL | 23001- | ||
| THE KAYABA KOGYO PART NUMBER IS THAT KB IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| 1 | KB93118-08652 | NUT | 23001- | |
| 2 | KB21031-30104 | STUD | 23001- | |
| 3 | KB93128-10082 | NUT | 23001- | |
| 4 | KB21031-30103 | STUD | 23001- | |
| 5 | KB21013-34848 | INLET SECTION ASS'Y | 23001- | |
| 6 | KB21011-30153 | OUTER SECTION | 23001- | |
| 7 | KB21013-35039 | SPOOL SECTION ASS'Y | 23001- | |
| 8 | KB21013-30664 | RELIEF VALVE ASS'Y | 23001- | |
| 9 | KB21003-00207 | PLUG ASS'Y | 23001- |