| Item | Part No. | Part Name | Qty | Serial No. |
| 23D-61-31100 | VALVE ASS'Y | 5001- | ||
| THE KAYABA KOGYO PART NUMBER IS THAT KB IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| 1 | \6\ | BODY | 5001- | |
| 2 | \6\ | SPOOL | 5001- | |
| 3 | KB21621-50501 | SPRING | 5001- | |
| 4 | KB21731-30307 | SPRING | 5001- | |
| 5 | KB21731-30502 | POPPET | 5001- | |
| 6 | KB21731-30703 | HOUSING | 5001- | |
| 7 | KB21731-30403 | PLATE | 5001- | |
| 8 | KB93364-08052 | NUT | 5001- | |
| 9 | KB91511-08201 | SCREW | 5001- | |
| 10 | KB95111-01800 | O-RING | 5001- | |
| 11 | KB21731-30605 | PLUG | 5001- | |
| 12 | KB21731-30603 | PLUG | 5001- | |
| 13 | KB95113-02400 | O-RING | 5001- | |
| 14 | KB94101-08201 | WASHER | 5001- | |
| 15 | KB92178-08201 | BOLT | 5001- | |
| 16 | KB95111-01200 | O-RING | 5001- | |
| 17 | KB21001-00651 | PLATE¤ NAME | 5001- | |
| 18 | KB91911-01489 | SCREW | 5001- | |
| 19 | KB99001-04040 | PLUG | 5001- | |
| 20 | KB99001-04030 | PLUG | 5001- |