| Item | Part No. | Part Name | Qty | Serial No. |
| 23E-60-12200 | CONTROL VALVE ASS'Y | | 6001-6500 |
| | THE KAYABA KOGYO PART NUMBER IS THAT KB IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | | |
| KB21013-21426 | SPOOL SECTION ASS'Y | | 6001-6500 |
| 1 | \6\ | HOUSING | | 6001-6500 |
| 2 | \6\ | O-RING (KIT A) | | 6001-6500 |
| 3 | \6\ | WIPER (KIT A) | | 6001-6500 |
| 4 | \6\ | SPOOL | | 6001-6500 |
| 5 | KB21011-22457 | SPRING | | 6001-6500 |
| 6 | KB21011-21251 | SEAT,SPRING | | 6001-6500 |
| 7 | KB21011-22351 | SCREW,CAP | | 6001-6500 |
| 8 | KB21011-21851 | CAP | | 6001-6500 |
| 9 | KB21011-21152 | SEAL | | 6001-6500 |
| 10 | KB92702-05121 | BOLT | | 6001-6500 |
| 11 | KB21011-22251 | HEAD,SPOOL | | 6001-6500 |
| 12 | KB21011-31507 | LINK | | 6001-6500 |
| 13 | KB21011-33307 | PIN | | 6001-6500 |
| 14 | KB94311-05082 | WASHER | | 6001-6500 |
| 15 | KB93601-12082 | PIN,COTTER | | 6001-6500 |
| 16 | KB21011-21951 | BRACKET | | 6001-6500 |
| 17 | KB21011-21152 | SEAL,SEAL | | 6001-6500 |
| 18 | KB92702-05121 | BOLT | | 6001-6500 |
| 19 | KB21011-21052 | VALVE | | 6001-6500 |
| 20 | KB21011-22452 | SPRING | | 6001-6500 |
| 21 | \6\ | O-RING (KIT A) | | 6001-6500 |
| KB21013-35124 | SPOOL SECTION ASS'Y | | 6001-6500 |
| 22 | \6\ | HOUSING | | 6001-6500 |
| 23 | \6\ | O-RING (KIT B) | | 6001-6500 |
| 24 | \6\ | WIPER (KIT B) | | 6001-6500 |
| 25 | \6\ | SPOOL | | 6001-6500 |
| 26 | KB21011-30646 | SPRING | | 6001-6500 |
| 27 | KB21011-30702 | SEAT,SPRING | | 6001-6500 |
| 28 | KB21011-30507 | SCREW,CAP | | 6001-6500 |
| 29 | KB21011-31044 | CAP | | 6001-6500 |
| 30 | KB21011-31702 | PLATE | | 6001-6500 |
| 31 | KB92702-06181 | BOLT | | 6001-6500 |
| 32 | KB21011-31507 | LINK | | 6001-6500 |
| 33 | KB21011-33307 | PIN | | 6001-6500 |
| 34 | KB94311-05082 | WASHER | | 6001-6500 |
| 35 | KB93601-12082 | PIN,COTTER | | 6001-6500 |
| 36 | KB21011-31205 | BRACKET | | 6001-6500 |
| 37 | KB21011-31702 | PLATE | | 6001-6500 |
| 38 | KB92702-06181 | BOLT | | 6001-6500 |
| 39 | KB21011-32404 | POPPET | | 6001-6500 |
| 40 | KB21011-30604 | SPRING | | 6001-6500 |
| 41 | \6\ | O-RING (KIT B) | | 6001-6500 |
| KB21013-21252 | SPACER SECTION A. | | 6001-6500 |
| 42 | KB21011-20665 | SPACER | | 6001-6500 |
| 43 | KB97123-01111 | PLUG | | 6001-6500 |
| 44 | KB21011-32409 | POPPET | | 6001-6500 |
| 45 | KB21013-20167 | INLET SECTION ASS'Y | | 6001-6500 |
| 45 | KB21011-20160 | HOUSING | | 6001-6500 |
| 46 | \6\ | O-RING | | 6001-6500 |
| KB21003-00207 | PLUG ASS'Y | | 6001-6500 |
| 47 | KB21001-00504 | PLUG | | 6001-6500 |
| 48 | \6\ | O-RING | | 6001-6500 |
| KB21003-00202 | PLUG ASS'Y | | 6001-6500 |
| 49 | KB21001-00726 | PLUG | | 6001-6500 |
| 50 | \6\ | O-RING | | 6001-6500 |
| 51 | KB21013-20901 | RELIEF VALVE ASS'Y | | 6001-6500 |
| KB21013-36008 | INLET SECTION ASS'Y | | 6001-6500 |
| 52 | KB21011-36307 | HOUSING | | 6001-6500 |
| 53 | \6\ | O-RING | | 6001-6500 |
| KB21003-00207 | PLUG ASS'Y | | 6001-6500 |
| 54 | KB21001-00504 | PLUG | | 6001-6500 |
| 55 | \6\ | O-RING | | 6001-6500 |
| KB21003-00191 | PLUG ASS'Y | | 6001-6500 |
| 56 | KB21001-00127 | PLUG | | 6001-6500 |
| 57 | \6\ | O-RING | | 6001-6500 |
| 58 | KB21051-30108 | STUD | | 6001-6500 |
| 59 | KB93118-08652 | NUT | | 6001-6500 |
| 60 | KB21051-30107 | STUD | | 6001-6500 |
| 61 | KB93128-10082 | NUT | | 6001-6500 |
| | SERVICE KIT | | |
| KIT A | 23E-60-05110 | SERVICE KIT,SPOOL SECTION | | 6001-6500 |
| KIT B | 23E-60-05120 | SERVICE KIT,SPOOL SECTION | | 6001-@ |
