| Item | Part No. | Part Name | Qty | Serial No. |
| (363-64-33211) | VALVE ASS'Y | 21356- | ||
| (363-64-33210) | VALVE ASS'Y | 17840-21355 | ||
| (363-64-33110) | VALVE ASS'Y | 15001-17839 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1680-01A0 TO Y1680-02A0. | ||||
| THE KAYABA KOGYO PART NUMBER IS THAT KB IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| 1A | 363-43-38470 | PLATE | 21356- | |
| 42A-64-13190 | SPACER ASS'Y | 15001-17839 | ||
| 1 | KB21011-30961 | SPACER | 15001-17839 | |
| 2 | KB21001-00106 | O-RING | 15001-17839 | |
| 363-64-33150 | SPOOL SECTION ASS'Y | 15001- | ||
| 3 | \6\ | HOUSING | 15001- | |
| 4 | KB21011-32404 | POPPET | 15001- | |
| 5 | KB21011-30604 | SPRING | 15001- | |
| 6 | KB21001-00106 | O-RING | 15001- | |
| 7 | \6\ | SPOOL | 15001- | |
| 8 | KB21001-00689 | O-RING | 15001- | |
| 9 | KB21011-32801 | WIPER | 15001- | |
| 10 | KB21011-31702 | PLATE | 15001- | |
| 11 | KB91111-60102 | SCREW | 15001- | |
| 12 | KB21011-30904 | SPACER | 15001- | |
| 13 | KB95131-01400 | O-RING | 15001- | |
| 14 | KB21001-00689 | O-RING | 15001- | |
| 15 | KB21011-30702 | SEAT,SPRING | 15001- | |
| 16 | KB21011-30603 | SPRING | 15001- | |
| 17 | KB21011-30510 | PIN | 15001- | |
| 18 | KB21011-30609 | SPRING | 15001- | |
| 19 | KB21011-33002 | BALL | 15001- | |
| 20 | KB21011-33003 | BALL | 15001- | |
| 21 | KB21011-31804 | SLEEVE | 15001- | |
| 22 | KB21011-31013 | CAP | 15001- | |
| 23 | KB92703-06321 | BOLT,HEAD | 15001- | |
| 24 | KB21011-33403 | SPACER | 15001- | |
| 25 | KB21011-33501 | RING,SNAP | 15001- | |
| 26 | 42A-64-13170 | OUTLET SECTION ASS'Y | 15001- | |
| 27 | 363-64-33230 | STUD,TIE | 17840- | |
| 42A-64-13130 | ROD,TIE | 15001-17839 | ||
| 28 | 42A-64-13120 | NUT | 15001- | |
| 29 | 363-64-33240 | STUD,TIE | 17840- | |
| 42A-64-13150 | ROD,TIE | 15001-17839 | ||
| 30 | 42A-64-13140 | NUT | 15001- | |
| 31 | 42A-64-13240 | VALVE ASS'Y,ANTI-VOID | 15001- | |
| 32 | KB21001-00036 | O-RING | 15001- | |
| 33 | 42A-64-13250 | PLUG,(FOR SHIPPING) | 15001- |