| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 154-33-21210 | PISTON | 12128- | |
| 2 | 175-33-24440 | SPOOL | 12128- | |
| 3 | 04064-02512 | RING | 12128- | |
| 4 | 154-33-21220 | BUSHING | 12128- | |
| 5 | 170-33-13370 | SPRING | 12128- | |
| 6 | 175-33-31310 | RETAINER | 23891- | |
| 6 | 170-33-13380 | RETAINER | 12128-23890 | |
| 7 | 154-33-21180 | BODY,L.H. | 12128- | |
| 8 | 154-33-21190 | BODY,R.H. | 12128- | |
| 9 | 154-33-21420 | PLATE | 12128- | |
| 10 | 154-33-21430 | PLATE | 12128- | |
| 11 | 01010-51255 | BOLT | 12128- | |
| 12 | 04020-01228 | PIN | 12128- | |
| 13 | 07000-03028 | O-RING | 12128- | |
| 14 | 177-33-11131 | SHAFT,R.H. | 12128- | |
| 15 | 177-33-11141 | SHAFT,L.H. | 12128- | |
| 16 | 04000-01030 | KEY | 12128- | |
| 17 | 177-33-11110 | SEAL | 12128- | |
| 18 | 177-33-11120 | SEAL | 12128- | |
| 19 | 154-33-21150 | LEVER | 12128- | |
| 20 | 01010-51235 | BOLT | 12128- | |
| 21 | 01602-21236 | WASHER | 12128- | |
| 22 | 177-33-11183 | HOUSING,BRAKE, L.H. | 20080- | |
| 22 | 177-33-11182 | HOUSING,BRAKE, L.H. | 17325-20079 | |
| 22 | 177-33-11181 | HOUSING,BRAKE, L.H. | 12128-17324 | |
| 23 | 177-33-11173 | HOUSING,BRAKE, R.H. | 20080- | |
| 23 | 177-33-11172 | HOUSING,BRAKE, R.H. | 17325-20079 | |
| 23 | 177-33-11171 | HOUSING,BRAKE, R.H. | 12128-17324 | |
| 24 | 154-33-21320 | BUSHING | 12128- | |
| 25 | 154-33-21330 | BUSHING | 12128- | |
| 26 | 175-33-24465 | GASKET | 23980- | |
| 26 | \0\175-33-24415 | GASKET | 17325-23979 | |
| 26 | 175-33-24413 | GASKET | 12128-17324 | |
| 27 | 04020-01228 | PIN | 12128- | |
| 28 | 195-33-11220 | SPACER | 12128- | |
| 29 | 01010-51265 | BOLT | 20080- | |
| 29 | 01010-51265 | BOLT | 12128-20079 | |
| 30 | 01010-51255 | BOLT | 17325- | |
| 30 | 01010-51245 | BOLT | 12128-17324 | |
| 31 | 01010-51285 | BOLT | 12128- | |
| 32 | 01602-21236 | WASHER | 20080- | |
| 32 | 01602-21236 | WASHER | 12128-20079 | |
| 33 | 175-33-24361 | COVER | 12128- | |
| 34 | 175-33-24591 | GASKET | 23980- | |
| 34 | \0\175-33-24511 | GASKET | 12128-23979 | |
| 35 | 01020-01235 | BOLT | 23891- | |
| 35 | 01010-51235 | BOLT | 12128-23890 | |
| 36 | 01602-21236 | WASHER | 12128- | |
| 37 | 177-33-11190 | CAP | 12128- | |
| 38 | 07000-02095 | O-RING | 12128- | |
| 39 | 07000-03032 | O-RING | 12128- | |
| 40 | 01010-51235 | BOLT | 12128- | |
| 41 | 01602-21236 | WASHER,SPRING | 12128- | |
| 170-33-00170 | RELIEF VALVE ASS'Y | 12128- | ||
| 42 | 170-33-13510 | HOUSING,RELIEF VALVE | 12128- | |
| 43 | 170-33-13520 | PISTON,RELIEF VALVE | 12128- | |
| 44 | 170-33-13530 | STOPPER,RELIEF VALVE | 12128- | |
| 45 | 07000-03025 | O-RING | 12128- | |
| 46 | 04065-03515 | RING | 12128- | |
| 47 | 07000-03020 | O-RING | 12128- | |
| 48 | 170-33-13550 | SEAT | 12128- | |
| 49 | 175-33-13230 | PLUNGER | 12128- | |
| 50 | 170-33-13572 | SPRING | 12128- | |
| 51 | 07005-03016 | SEAL, WASHER | 12128- | |
| 52 | 170-33-13580 | NUT | 12128- | |
| 53 | 170-33-13592 | NUT | 12128- | |
| 54 | 07042-00108 | PLUG | 12128- | |
| 55 | 177-33-11151 | TUBE,L.H. | 12128- | |
| 56 | 177-33-11161 | TUBE,R.H. | 12128- | |
| 57 | 07000-03025 | O-RING | 12128- | |
| 58 | 01010-51030 | BOLT | 12128- | |
| 59 | 01602-21030 | WASHER | 12128- | |
| 60 | 170-33-13330 | ROLLER | 12128- | |
| 61 | 04205-01645 | PIN | 12128- | |
| 62 | 01641-21626 | WASHER | 12128- | |
| 63 | 04050-14025 | PIN | 12128- | |
| 64 | 01010-51050 | BOLT | 12128- | |
| 65 | 01602-21030 | WASHER | 12128- |