| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | (21J-60-12181) | MAIN VALVE ASS'Y | 1201- | |
| (21J-60-12180) | MAIN VALVE ASS'Y | 1001-1200 | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1680-01A1 TO Y1680-04A1. | ||||
| 1 | TM8202-005 | O-RING | 1001-1200 | |
| 2 | TM8202-011 | O-RING | 1001-1200 | |
| 3 | TM3504-065 | VALVE ASS'Y | 1001-1200 | |
| 4 | TM8202-005 | O-RING | 1001-1200 | |
| 5 | TM8202-011 | O-RING | 1001-1200 | |
| 6 | TM0824-050 | CAP | 1001-1200 | |
| 7 | TM3513-291 | VALVE | 1001-1200 | |
| 8 | TM3590-345 | SPRING | 1001-1200 | |
| 9 | TM0824-051 | CAP | 1001-1200 | |
| 10 | TM3537-374 | VALVE ASS'Y | 1001-1200 | |
| 21J-60-12620 | VALVE ASS'Y,(ROAD CONSTRUCTION SPEC.) | 1001-1200 | ||
| 11 | TM8202-009 | O-RING | 1001-1200 | |
| 12 | TM0859-208 | RING | 1001-1200 | |
| 13 | TM8202-003 | O-RING | 1001-1200 | |
| 14 | TM8202-004 | O-RING | 1001-1200 | |
| 15 | TM0859-253 | RING | 1001-1200 | |
| 16 | TM8202-009 | O-RING | 1001-1200 | |
| 17 | TM8202-009 | O-RING | 1001-1200 | |
| 18 | TM3503-237 | COVER | 1001-1200 | |
| 19 | TM8072-087 | BOLT | 1001-1200 | |
| 20 | TM3503-238 | COVER | 1001-1200 | |
| 21 | TM8202-007 | O-RING | 1001-1200 | |
| 22 | TM1099-000 | PLUG | 1001-1200 | |
| 23 | TM3526-570 | CAP | 1001-1200 | |
| 24 | TM8202-018 | O-RING | 1001-1200 | |
| 25 | TM0859-311 | RING | 1001-1200 | |
| 26 | TM3390-101 | SPRING | 1001-1200 | |
| 27 | TM3513-207 | CHECK VALVE | 1001-1200 | |
| 28 | TM0859-208 | RING | 1001-1200 | |
| 29 | TM8202-003 | O-RING | 1001-1200 | |
| 30 | TM3516-226 | SPOOL | 1001-1200 | |
| 31 | TM0824-051 | CAP | 1001-1200 | |
| 32 | TM3516-208 | SLEEVE | 1001-1200 | |
| 33 | TM8202-004 | O-RING | 1001-1200 | |
| 34 | TM0859-253 | RING | 1001-1200 |