| Item | Part No. | Part Name | Qty | Serial No. |
| 23B-61-42100 | VALVE ASS'Y,BANK AND PARKING BRAKE | 51501- | ||
| 1 | 23B-40-44150 | VALVE | 51501- | |
| 2 | 23B-40-44160 | BALL | 51501- | |
| 3 | 23B-40-44170 | SPRING | 51501- | |
| 4 | 23B-40-44180 | PLUG | 51501- | |
| 5 | 07000-12018 | O-RING | 51501- | |
| 6 | 23B-61-42110 | SOLENOID VALVE | 51501- | |
| 6 | 23B-61-42120 | SOLENOID | 51501- | |
| 6 | 23B-61-42130 | NUT | 51501- | |
| 6 | 23B-61-05110 | SEAL KIT | 51501- | |
| 7 | 23B-61-42140 | SOLENOID VALVE | 51501- | |
| 7 | 23B-61-42151 | SOLENOID | 51501- | |
| 7 | 23B-61-42131 | NUT | 51501- | |
| 7 | 23B-61-05120 | SEAL KIT | 51501- | |
| 8 | 23B-61-42170 | VALVE | 51501- | |
| 8 | 23B-61-05130 | SEAL KIT | 51501- | |
| 9 | 23B-61-42180 | RELIEF VALVE | 51501- | |
| 10 | \6\ | BODY | 51501- | |
| 11 | \6\ | PLUG | 51501- | |
| 12 | \6\ | PLUG | 51501- |