| 523004 | Magnetic valve | WABCO | | |
| 523175 | Check seal | WABCO | | |
| 523179 | Choke, plugs (valve, automatic brake) | WABCO | | |
| 523215 | Diaphragm | WABCO | | |
| 523238 | Pneudyne diaphragm | WABCO | | |
| 523266 | Supply valve | WABCO | | |
| 523351W | Cylinder | WABCO | | |
| 523392 | H.p. compression ring o/s 0.010 | WABCO | | |
| 523393 | H.p. compression ring o/s 0.020 | WABCO | | |
| 523394 | H p compression ring o/s 0.030 | WABCO | | |
| 523395 | H.p. oil ring o/s 0.010 | WABCO | | |
| 523396 | H.p. oil ring o/s 0.020 | WABCO | | |
| 523397 | H.p. oil ring o/s 0.030 | WABCO | | |
| 523401 | L.p. compression ring o/s 0.010 | WABCO | | |
| 523402 | L.p. compression ring o/s 0.020 | WABCO | | |
| 523403 | L.p. compression ring o/s 0.030 | WABCO | | |
| 523404 | L.p. oil ring o/s 0.010 | WABCO | | |
| 523405 | L.p. oil ring o/s 0.020 | WABCO | | |
| 523406 | L.p. oil ring o/s 0.030 | WABCO | | |
| 523427 | H.p. oil ring o/s 0.020 | WABCO | | |
| 523429 | H.p. compression ring o/s 0.010 | WABCO | | |
| 523430 | H.p. compression ring o/s 0.020 | WABCO | | |
| 523431 | H p compression ring o/s 0.030 | WABCO | | |
| 523432 | H.p. oil ring o/s 0.010 | WABCO | | |
| 523433 | H.p. oil ring o/s 0.030 | WABCO | | |
| 523437 | Plug, hex, 1/8 in (valve, automatic brake) | WABCO | | |
| 523438 | Ring oil 0.010 in | WABCO | | |
| 523527 | Compression helical spring | WABCO | | |
| 523554 | Cylinder, brake assembly | WABCO | | |
| 523619 | Gasket, 1/2 OD ring (valve, h-5 air) | WABCO | | |
| 523631 | Compression helical spring | WABCO | | |
| 52371 | Spring | WABCO | | |
| 523732 | O-ring | WABCO | | |
| 523734 | O-ring, 7/8 in | WABCO | | |
| 523745 | O-ring, 33/4 in o d | WABCO | | |
| 523842 | O-ring, 5/8 in o d (valve, no 24, double check) | WABCO | | |
| 523879 | Manifold, unloader tube | WABCO | | |