| Item | Part No. | Part Name | Qty | Serial No. |
| 20B-60-21200 | VALVE ASS'Y,SUSPENSION LOCK | 1501- | ||
| 1 | \6\ | BODY | 1501- | |
| 2 | \6\ | SPOOL | 1501- | |
| 3 | 20B-60-18150 | BALL | 1501- | |
| 4 | 20B-60-18160 | SPRING | 1501- | |
| 5 | 20B-60-21210 | PLUG | 1501- | |
| 6 | 20B-60-21220 | PLUG | 1501- | |
| 7 | 20B-60-18180 | O-RING | 1501- | |
| 8 | 20B-60-21230 | SPRING | 1501- | |
| 9 | 20B-60-18280 | COVER | 1501- | |
| 10 | 20B-60-18290 | O-RING | 1501- | |
| 11 | 20B-60-21240 | WASHER | 1501- | |
| 12 | 20B-60-18310 | BOLT | 1501- | |
| 13 | 07043-00312 | PLUG | 1501- |