| Item | Part No. | Part Name | Qty | Serial No. |
| 232-44-51200 | DRYER | 21001-23000 | ||
| 1 | 232-44-51210 | RESERVOIR | 21001-23000 | |
| 2 | 232-44-51220 | FILTER | 21001-23000 | |
| 3 | \6\ | VALVE,CHECK (KIT) | 21001-23000 | |
| 4 | \6\ | PLATE,STOP (KIT) | 21001-23000 | |
| 232-44-51300 | CARTRIDGE ASS'Y | 21001-23000 | ||
| 5 | 232-44-51230 | CASE | 21001-23000 | |
| 6 | \6\ | PLATE,FILTER (KIT) | 21001-23000 | |
| 7 | \6\ | DESICCANT (KIT) | 21001-23000 | |
| 8 | \6\ | GASKET (KIT) | 21001-23000 | |
| 9 | \6\ | FILTER,OIL (KIT) | 21001-23000 | |
| 10 | \6\ | GASKET (KIT) | 21001-23000 | |
| 11 | 232-44-51240 | BOLT | 21001-23000 | |
| 12 | 01640-21426 | WASHER | 21001-23000 | |
| 13 | 232-44-51250 | SPRING | 21001-23000 | |
| 14 | 232-44-51260 | NUT | 21001-23000 | |
| 15 | \6\ | GASKET (KIT) | 21001-23000 | |
| 232-44-51400 | VALVE BODY ASS'Y | 21001-23000 | ||
| 16 | 232-44-51270 | BODY | 21001-23000 | |
| 17 | 232-44-51280 | PISTON | 21001-23000 | |
| 18 | 07000-02015 | O-RING (KIT) | 21001-23000 | |
| 19 | 07000-01009 | O-RING (KIT) | 21001-23000 | |
| 20 | 07000-01007 | O-RING (KIT) | 21001-23000 | |
| 21 | 232-44-51290 | SPRING | 21001-23000 | |
| 22 | 232-44-51310 | VALVE (KIT) | 21001-23000 | |
| 23 | 01598-00809 | NUT | 21001-23000 | |
| 24 | 07000-02020 | O-RING (KIT) | 21001-23000 | |
| 25 | 232-44-51320 | CAP | 21001-23000 | |
| 26 | 07000-05125 | O-RING (KIT) | 21001-23000 | |
| 27 | 232-44-51330 | RING | 21001-23000 | |
| 28 | 232-44-51340 | PLATE | 21001-23000 | |
| 29 | 01602-20619 | WASHER,SPRING | 21001-23000 | |
| 30 | 01220-40610 | SCREW | 21001-23000 | |
| 31 | 232-44-51350 | NIPPLE | 21001-23000 | |
| 32 | 232-44-51360 | HEATER ASS'Y | 21001-23000 | |
| 33 | 07003-01419 | GASKET | 21001-23000 | |
| 34 | 232-44-51370 | BOOT (KIT) | 21001-23000 | |
| 35 | 232-44-51380 | TERMINAL | 21001-23000 | |
| 36 | 232-44-51390 | THERMOSTAT | 21001-23000 | |
| 37 | 08021-00400 | CONNECTOR | 21001-23000 | |
| 38 | 232-44-51410 | COVER | 21001-23000 | |
| 39 | 01601-20307 | WASHER,SPRING | 21001-23000 | |
| 40 | 01220-40306 | SCREW | 21001-23000 | |
| 41 | 232-44-51420 | LABEL | 21001-23000 | |
| 42 | 232-44-51430 | LABEL | 21001-23000 | |
| 43 | 232-44-51440 | LABEL | 21001-23000 | |
| 44 | 232-44-51450 | BUSHING | 21001-23000 | |
| 45 | 232-44-51460 | ELBOW | 21001-23000 | |
| 46 | 232-44-51470 | TUBE | 21001-23000 | |
| 47 | 07042-20211 | PLUG | 21001-23000 | |
| 48 | 07042-20312 | PLUG | 21001-23000 | |
| SERVICE KIT | ||||
| KIT | 232-44-05010 | SERVICE KIT,AIR DRYER | 21001-23000 |