| Item | Part No. | Part Name | Qty | Serial No. |
| 262-60-27500 | VALVE ASS'Y,RELIEF | 12001- | ||
| THE KAYABA KOGYO PART NUMBER IS THAT KB IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| KB21610-30071 | VALVE ASS'Y,RELIEF | 12001- | ||
| 1 | KB21611-30103 | HOUSING,VALVE | 12001- | |
| 2 | KB97123-02111 | PLUG | 12001- | |
| 3 | KB21001-00504 | PLUG | 12001- | |
| 4 | \6\ | O-RING | 12001- | |
| 5 | KB21013-30651 | VALVE ASS'Y | 12001- | |
| 6 | \6\ | O-RING | 12001- | |
| O-RING | ||||
| KB21610-30072 | VALVE ASS'Y,RELIEF | 12001- | ||
| 7 | KB21611-30102 | HOUSING,VALVE | 12001- | |
| 8 | KB97123-02111 | PLUG | 12001- | |
| 9 | KB21013-30651 | VALVE ASS'Y | 12001- | |
| 10 | \6\ | O-RING | 12001- | |
| O-RING | ||||
| 11 | \6\ | O-RING | 12001- | |
| 12 | KB21611-30202 | ROD,TIE | 12001- | |
| 13 | KB93118-08652 | NUT | 12001- |