| Item | Part No. | Part Name | Qty | Serial No. |
| 565-44-11200 | VALVE ASS'Y,RELAY | 1021- | ||
| 1 | \6\ | BODY | 1021- | |
| 2 | 560-44-11970 | PLUG,PIPE | 1021- | |
| 565-44-11020 | VALVE ASS'Y (K18) | 1021- | ||
| 3 | 560-44-11760 | VALVE | 1021- | |
| 4 | 560-44-11770 | RING,RETAINING | 1021- | |
| 5 | 560-44-11830 | RETAINER,VALVE | 1021- | |
| 6 | 560-44-11820 | SPRING,VALVE | 1021- | |
| 7 | 560-44-11790 | GUIDE,VALVE | 1021- | |
| 8 | 560-44-11780 | O-RING | 1021- | |
| 9 | 560-44-11810 | O-RING | 1021- | |
| 10 | 560-44-11960 | COVER,EXHAUST | 1021- | |
| 11 | 560-44-11950 | VALVE,EXHAUST (K18) | 1021- | |
| 12 | 560-44-11930 | SCREW | 1021- | |
| 13 | 560-44-11940 | WASHER,SPRING | 1021- | |
| 14 | \6\ | COVER | 1021- | |
| \6\ | PISTON ASS'Y | 1021- | ||
| 15 | \6\ | PISTON,RELAY | 1021- | |
| 16 | \6\ | SEAT | 1021- | |
| 17 | 560-44-11850 | O-RING (K18) | 1021- | |
| 18 | 560-44-11870 | SPRING,RETURN | 1021- | |
| 19 | 560-44-11840 | RING,SEAL (K18) | 1021- | |
| 20 | 560-44-11910 | BOLT | 1021- | |
| 21 | 560-44-11920 | WASHER,SPRING | 1021- |