| Item | Part No. | Part Name | Qty | Serial No. |
| 238-44-12110 | VALVE ASS'Y,DUAL BRAKE | | 21001- |
| 1 | 238-44-12120 | BODY,UPPER | | 21001- |
| 238-44-00030 | UPPER VALVE ASS'Y | | 21001- |
| 2 | \6\ | VALVE,UPPER (KIT B) | | 21001- |
| 3 | 238-44-12140 | RETAINER,VALVE | | 21001- |
| 4 | \6\ | SPRING,UPPER VALVE (KIT A) | | 21001- |
| 5 | 238-44-12160 | RETAINER,UPPER | | 21001- |
| 6 | \6\ | O-RING (KIT B) | | 21001- |
| 7 | 238-44-12180 | WASHER | | 21001- |
| 8 | \6\ | RING (KIT B) | | 21001- |
| 9 | \6\ | O-RING (KIT B) | | 21001- |
| 10 | \6\ | RING (KIT B) | | 21001- |
| 11 | \6\ | SPRING,RELAY PISTON (KIT A) | | 21001- |
| 12 | 238-44-12230 | PISTON,RELAY | | 21001- |
| 13 | \6\ | O-RING (KIT B) | | 21001- |
| 14 | \6\ | O-RING (KIT B) | | 21001- |
| 15 | \6\ | SPRING,PISTON RETURN (KIT A) | | 21001- |
| 238-44-00050 | STEM ASS'Y | | 21001- |
| 16 | 238-44-12270 | STEM | | 21001- |
| 17 | \6\ | SPRING,INNER (KIT A) | | 21001- |
| 18 | \6\ | SPRING,OUTER (KIT A) | | 21001- |
| 19 | 238-44-12310 | SLEEVE | | 21001- |
| 20 | 238-44-12320 | WASHER,STEM | | 21001- |
| 21 | 238-44-12330 | PISTON,UPPER | | 21001- |
| 22 | \6\ | SPRING,RUBBER (KIT B) | | 21001- |
| 23 | 238-44-12350 | SEAT,SPRING | | 21001- |
| 24 | 01643-30623 | WASHER | | 21001- |
| 25 | 01602-20619 | WASHER,SPRING | | 21001- |
| 26 | 01580-10605 | NUT | | 21001- |
| 27 | \6\ | O-RING (KIT B) | | 21001- |
| 28 | 238-44-12370 | BODY,LOWER | | 21001- |
| 238-44-00070 | LOWER VALVE ASS'Y | | 21001- |
| 29 | \6\ | VALVE,LOWER (KIT B) | | 21001- |
| 30 | 238-44-12390 | RETAINER,VALVE | | 21001- |
| 31 | \6\ | SPRING,LOWER VALVE (KIT A) | | 21001- |
| 32 | 238-44-12420 | RETAINER,LOWER | | 21001- |
| 33 | \6\ | O-RING (KIT B) | | 21001- |
| 34 | 238-44-12440 | WASHER | | 21001- |
| 35 | \6\ | RING (KIT B) | | 21001- |
| 36 | \6\ | O-RING (KIT B) | | 21001- |
| 37 | 238-44-12470 | COVER,EXHAUST | | 21001- |
| 38 | \6\ | VALVE,EXHAUST (KIT B) | | 21001- |
| 39 | \6\ | O-RING (KIT B) | | 21001- |
| 40 | 01010-50625 | BOLT | | 21001- |
| 41 | 01602-20619 | WASHER,SPRING | | 21001- |
| 42 | 01220-40510 | SCREW | | 21001- |
| 43 | 01602-20513 | WASHER,SPRING | | 21001- |
| 238-44-00080 | MOUNT PLATE ASS'Y | | 21001- |
| 44 | 238-44-12510 | PLATE ASS'Y | | 21001- |
| 45 | 238-44-12520 | PLUNGER | | 21001- |
| 46 | 238-44-12530 | BOOT,PLUNGER | | 21001- |
| 47 | 238-44-12540 | TREADLE | | 21001- |
| 48 | 238-44-12550 | BOOT,TREADLE | | 21001- |
| 49 | 238-44-12560 | PIN | | 21001- |
| 50 | 238-44-12570 | PIN | | 21001- |
| 51 | 238-44-12580 | ROLLER | | 21001- |
| 52 | 238-44-12590 | PIPE | | 21001- |
| 53 | 238-44-12610 | PIN,SPLIT | | 21001- |
| 54 | 238-44-12620 | SCREW,SET | | 21001- |
| 55 | 01580-10806 | NUT | | 21001- |
| 56 | 01010-50822 | BOLT | | 21001- |
| 57 | 01602-20825 | WASHER,SPRING | | 21001- |
| 58 | 07043-00312 | PLUG | | 21001- |
| | SERVICE KIT | | |
| KIT A | 238-44-05010 | SERVICE KIT,BRAKE VALVE SPRING | | 21001- |
| KIT B | 238-44-05030 | SERVICE KIT,BRAKE VALVE REPAIR | | 21001- |
