| Item | Part No. | Part Name | Qty | Serial No. |
| 565-44-11201 | VALVE ASS'Y,AIR RELAY | 21001- | ||
| 565-44-05110 | VALVE ASS'Y,RELAY | 21001- | ||
| 565-44-11020 | VALVE ASS'Y (KIT) | 21001- | ||
| 1 | 560-44-11760 | VALVE (KIT) | 21001- | |
| 2 | 560-44-11770 | RING,RETAINER (KIT) | 21001- | |
| 3 | 560-44-11780 | O-RING (KIT) | 21001- | |
| 4 | 560-44-11790 | GUIDE,VALVE (KIT) | 21001- | |
| 5 | 560-44-11810 | O-RING (KIT) | 21001- | |
| 6 | 560-44-11820 | SPRING (KIT) | 21001- | |
| 7 | 560-44-11830 | RETAINER (KIT) | 21001- | |
| 8 | 560-44-11840 | RING,SEAL (KIT) | 21001- | |
| 9 | 560-44-11850 | O-RING (KIT) | 21001- | |
| 10 | 560-44-11860 | COVER | 21001- | |
| 11 | 560-44-11870 | SPRING,RETURN | 21001- | |
| 12 | 560-44-11880 | PISTON,RELAY | 21001- | |
| 13 | 560-44-11890 | SEAT,VALVE | 21001- | |
| 14 | 560-44-11910 | BOLT | 21001- | |
| 15 | 560-44-11920 | WASHER,SPRING | 21001- | |
| 16 | 560-44-11930 | SCREW,CAP | 21001- | |
| 17 | 560-44-11940 | WASHER,SPRING | 21001- | |
| 18 | 560-44-11950 | VALVE,EXHAUST (KIT) | 21001- | |
| 19 | 560-44-11960 | COVER,EXHAUST | 21001- | |
| 20 | 560-44-11990 | BODY | 21001- | |
| 21 | 560-44-11970 | PLUG | 21001- | |
| SERVICE KIT | ||||
| KIT | 565-44-05021 | SERVICE KIT,RELAY VALVE | 21001- |