| Item | Part No. | Part Name | Qty | Serial No. |
| 363-876-3131 | VALVE ASS'Y | 21290- | ||
| 363-876-3130 | VALVE ASS'Y | 20094-21289 | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1682-01A0A AND Y1682-02A0 . | ||||
| THE KAYABA KOGYO PART NUMBER IS THAT KB IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| 1A | 363-43-38470 | PLATE | 21290- | |
| 42A-64-13160 | INLET SECTION ASS'Y | 20001- | ||
| 1 | KB21011-30336 | HOUSING,INLET | 20001- | |
| 2 | KB21001-00106 | O-RING | 20001- | |
| 363-876-3120 | SPOOL SECTION ASS'Y | 20001- | ||
| 3 | \6\ | HOUSING | 20001- | |
| 4 | KB21011-32404 | POPPET | 20001- | |
| 5 | KB21011-30604 | SPRING | 20001- | |
| 6 | KB21001-00106 | O-RING | 20001- | |
| 7 | \6\ | SPOOL | 20001- | |
| 8 | KB21001-00689 | O-RING | 20001- | |
| 9 | KB21011-32801 | WIPER | 20001- | |
| 10 | KB21011-31702 | PLATE | 20001- | |
| 11 | KB91111-60102 | SCREW | 20001- | |
| 12 | KB21011-30702 | SEAT,SPRING | 20001- | |
| 13 | KB21011-30612 | SPRING | 20001- | |
| 14 | KB21011-30507 | SCREW,CAP | 20001- | |
| 15 | KB21011-31011 | CAP | 20001- | |
| 16 | KB92703-06181 | BOLT,HEAD | 20001- | |
| 363-64-33220 | SPOOL SECTION ASS'Y | 20094- | ||
| 17 | \6\ | HOUSING | 20001- | |
| 18 | KB21011-32404 | POPPET | 20001- | |
| 19 | KB21011-30604 | SPRING | 20001- | |
| 20 | KB21001-00106 | O-RING | 20001- | |
| 21 | \6\ | SPOOL | 20094- | |
| 22 | KB21001-00689 | O-RING | 20001- | |
| 23 | KB21011-32801 | WIPER | 20001- | |
| 24 | KB21011-31702 | PLATE | 20001- | |
| 25 | KB91111-60102 | SCREW | 20001- | |
| 26 | KB21011-31856 | SLEEVE | 20094- | |
| 27 | KB21001-00689 | O-RING | 20094- | |
| 28 | KB95151-02800 | O-RING | 20094- | |
| 29 | KB21011-30702 | SEAT,SPRING | 20001- | |
| 30 | KB21011-30630 | SPRING | 20001- | |
| 31 | KB21011-32801 | WIPER | 20094- | |
| 32 | KB21011-31707 | PLATE | 20094- | |
| 33 | KB21011-30565 | PIN | 20094- | |
| 34 | KB93317-05322 | NUT | 20094- | |
| 35 | KB21011-33453 | PLATE | 20094- | |
| 36 | KB21001-01456 | BOLT,HEAD | 20094- | |
| 37 | KB95111-02550 | O-RING | 20094- | |
| 38 | KB21001-01458 | SHIM | 20094- | |
| 39 | KB25113-30127 | TUBE,COIL | 20094- | |
| 40 | KB95111-02550 | O-RING | 20094- | |
| 41 | KB21011-31095 | CAP | 20094- | |
| 42 | KB21001-01457 | BOLT,HEAD | 20094- | |
| 43 | 42A-64-13270 | PLUG | 20001- | |
| 44 | 42A-64-13280 | O-RING | 20001- | |
| 45 | 42A-64-13220 | RELIEF VALVE ASS'Y,MAIN | 20001- | |
| 46 | KB21001-00036 | O-RING | 20001- | |
| 47 | 42A-64-13230 | RELIEF VALVE ASS'Y,OVERLOAD | 20001- | |
| 48 | KB21001-00036 | O-RING | 20001- | |
| 49 | 42A-64-13250 | PLUG,(FOR SHIPPING) | 20001- |