| Item | Part No. | Part Name | Qty | Serial No. |
| 23D-60-13500 | CONTROL VALVE ASS'Y | 4501- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.6212 AND 6213. | ||||
| THE KAYABA KOGYO PART NUMBER IS THAT KB IS REMOVED FROM KOMATSU PART NUMBER LISTED BELOW. | ||||
| KB21013-36640 | SPOOL SECTION ASS'Y | 4501- | ||
| 1 | \6\ | HOUSING | 4501- | |
| 2 | \6\ | O-RING (K16) | 4501- | |
| 3 | \6\ | WIPER (K16) | 4501- | |
| 4 | \6\ | SPOOL | 4501- | |
| 5 | \6\ | O-RING | 4501- | |
| 6 | KB21011-30646 | SPRING | 4501- | |
| 7 | KB21011-32313 | WASHER | 4501- | |
| 8 | KB21011-30702 | SEAT,SPRING | 4501- | |
| 9 | KB21011-30528 | SCREW | 4501- | |
| 10 | KB21011-31044 | CAP | 4501- | |
| 11 | KB21011-31702 | PLATE | 4501- | |
| 12 | KB92702-06181 | BOLT | 4501- | |
| 13 | KB21011-31702 | PLATE | 4501- | |
| 14 | KB91111-60102 | SCREW | 4501- | |
| 15 | KB93812-10200 | PIN | 4501- | |
| 16 | \6\ | O-RING (K16) | 4501- | |
| KB21013-30758 | SECTION ASS'Y,FLOW CONTROL | 4501- | ||
| 17 | \6\ | HOUSING | 4501- | |
| 18 | \6\ | SPOOL | 4501- | |
| 19 | KB21011-36502 | SPRING | 4501- | |
| 20 | KB21011-30997 | SPACER | 4501- | |
| 21 | KB21011-30998 | SPACER | 4501- | |
| 22 | \6\ | O-RING | 4501- | |
| 23 | \6\ | RING,BACK-UP | 4501- | |
| 24 | KB21011-32512 | ADJUSTER | 4501- | |
| 25 | KB21011-32947 | PLUG | 4501- | |
| 26 | \6\ | O-RING | 4501- | |
| 27 | KB21001-00504 | PLUG | 4501- | |
| 28 | \6\ | O-RING | 4501- | |
| 29 | KB21011-32404 | POPPET | 4501- | |
| 30 | KB21011-30604 | SPRING | 4501- | |
| 31 | \6\ | O-RING | 4501- | |
| KB21013-36018 | INLET SECTION ASS'Y | 4501- | ||
| 32 | KB21011-36315 | HOUSING | 4501- | |
| 33 | \6\ | O-RING | 4501- | |
| KB21003-00207 | PLUG ASS'Y | 4501- | ||
| 34 | KB21001-00504 | PLUG | 4501- | |
| 35 | \6\ | O-RING | 4501- | |
| 36 | KB21013-30664 | RELIEF VALVE ASS'Y,RELIEF | 4501- | |
| 37 | KB21061-30104 | STUD | 4501- | |
| 38 | KB93118-08652 | NUT | 4501- | |
| 39 | KB21061-30103 | STUD | 4501- | |
| 40 | KB93128-10082 | NUT | 4501- |