| Item | Part No. | Part Name | Qty | Serial No. |
| 235-44-11690 | VALVE ASS'Y | 4001-4500 | ||
| 1 | \6\ | BODY,UPPER | 4001-4500 | |
| 2 | \6\ | PLUG,PIPE | 4001-4500 | |
| 3 | \6\ | BUSHING | 4001-4500 | |
| 4 | \6\ | VALVE,UPPER (KIT A) | 4001-4500 | |
| 5 | \6\ | RETAINER,VALVE | 4001-4500 | |
| 6 | \6\ | SPRING (KIT B) | 4001-4500 | |
| 7 | \6\ | RETAINER | 4001-4500 | |
| 8 | \6\ | O-RING (KIT A) | 4001-4500 | |
| 9 | \6\ | O-RING (KIT A) | 4001-4500 | |
| 10 | \6\ | WASHER | 4001-4500 | |
| 11 | \6\ | RING,RETAINER (KIT A) | 4001-4500 | |
| 12 | \6\ | RING (KIT A) | 4001-4500 | |
| 13 | 235-44-13150 | PISTON,RELAY | 4001-4500 | |
| 14 | \6\ | O-RING (KIT A) | 4001-4500 | |
| 15 | \6\ | O-RING (KIT A) | 4001-4500 | |
| 16 | \6\ | SPRING (KIT B) | 4001-4500 | |
| 17 | 235-44-13250 | PISTON,UPPER | 4001-4500 | |
| 18 | \6\ | O-RING (KIT A) | 4001-4500 | |
| 19 | \6\ | SPRING (KIT B) | 4001-4500 | |
| 20 | \6\ | STEM | 4001-4500 | |
| 21 | \6\ | SPRING,INNER (KIT B) | 4001-4500 | |
| 22 | \6\ | SPRING,OUTER (KIT B) | 4001-4500 | |
| 23 | \6\ | SLEEVE | 4001-4500 | |
| 24 | \6\ | WASHER | 4001-4500 | |
| 25 | \6\ | RUBBER (KIT A) | 4001-4500 | |
| 26 | \6\ | SEAT | 4001-4500 | |
| 27 | \6\ | NUT | 4001-4500 | |
| 28 | \6\ | WASHER,SPRING | 4001-4500 | |
| 29 | \6\ | WASHER | 4001-4500 | |
| 30 | \6\ | BODY,LOWER | 4001-4500 | |
| 31 | \6\ | PLUG,PIPE | 4001-4500 | |
| 32 | \6\ | BUSHING | 4001-4500 | |
| 33 | \6\ | VALVE,LOWER (KIT A) | 4001-4500 | |
| 34 | \6\ | RETAINER,VALVE | 4001-4500 | |
| 35 | \6\ | SPRING (KIT B) | 4001-4500 | |
| 36 | \6\ | RETAINER | 4001-4500 | |
| 37 | \6\ | O-RING (KIT A) | 4001-4500 | |
| 38 | \6\ | O-RING (KIT A) | 4001-4500 | |
| 39 | \6\ | WASHER | 4001-4500 | |
| 40 | \6\ | RING,RETAINER (KIT A) | 4001-4500 | |
| 41 | \6\ | COVER,EXHAUST (KIT A) | 4001-4500 | |
| 42 | \6\ | CHECK,EXHAUST (KIT A) | 4001-4500 | |
| 43 | \6\ | SCREW (KIT A) | 4001-4500 | |
| 44 | \6\ | WASHER (KIT A) | 4001-4500 | |
| 45 | \6\ | SCREW AND WASHER | 4001-4500 | |
| 46 | \6\ | O-RING (KIT A) | 4001-4500 | |
| 47 | \6\ | BOLT AND WASHER | 4001-4500 | |
| 48 | \6\ | WASHER | 4001-4500 | |
| 235-44-13510 | PLATE ASS'Y,MOUNTING | 4001-4500 | ||
| 49 | \6\ | PLATE,MOUNTING | 4001-4500 | |
| 50 | \6\ | BOLT AND WASHER | 4001-4500 | |
| 51 | \6\ | BUSHING | 4001-4500 | |
| 52 | 235-44-13550 | PLUNGER | 4001-4500 | |
| 53 | \6\ | BOOT,PLUNGER | 4001-4500 | |
| 54 | 235-44-13570 | LEVER,(FOR SHIPPING) | 4001-4500 | |
| 55 | \6\ | ROLLER | 4001-4500 | |
| 56 | \6\ | PIN | 4001-4500 | |
| 57 | \6\ | PIN,COTTER | 4001-4500 | |
| 58 | \6\ | PIN | 4001-4500 | |
| 59 | \6\ | BUSHING | 4001-4500 | |
| 60 | \6\ | PIN,COTTER | 4001-4500 | |
| 61 | \6\ | SCREW,(FOR SHIPPING) | 4001-4500 | |
| 62 | \6\ | NUT | 4001-4500 | |
| SERVICE KIT | ||||
| KIT A | 235-44-12910 | SERVICE KIT,SEAL | 4001-4500 | |
| KIT B | 235-44-12920 | SERVICE KIT,SPRING | 4001-4500 |