| 558140 | Cover, strainer (cutout cock and strainer) | WABCO | | |
| 558296 | Safety valve | WABCO | | |
| 558371 | Gasket | WABCO | | |
| 558407 | Pin, cam dog (valve, independent brake) | WABCO | | |
| 558431 | HP cylinder head assembly withun-loaders | WABCO | | |
| 558440 | Valve, brake body (valve, automatic brake) | WABCO | | |
| 558449 | Housing (valve, automatic brake) | WABCO | | |
| 558459 | Capnut, spillover check valve (valve, automatic brake) | WABCO | | |
| 558460 | Ring, retaining (valve, automatic brake) | WABCO | | |
| 558462 | Plug (valve, automatic brake) | WABCO | | |
| 558467 | Dogs, cam (valve, automatic brake) | WABCO | | |
| 558468 | Pin (valve, automatic brake) | WABCO | | |
| 558469 | Pin, cam (valve, automatic brake) | WABCO | | |
| 558473 | Valve, emergency cam (valve, automatic brake) | WABCO | | |
| 558474 | Shaft, cam (valve, automatic brake) | WABCO | | |
| 558476 | Quadrant (valve, automatic brake) | WABCO | | |
| 558477 | Valve, emergency (valve, automatic brake) | WABCO | | |
| 558479 | Valve, suppression (valve, automatic brake) | WABCO | | |
| 558482 | Valve, vent cage (valve, automatic brake) | WABCO | | |
| 558483 | Cam, housing (valve, automatic brake) | WABCO | | |
| 558484 | Retainer (valve, automatic brake) | WABCO | | |
| 558485 | Valve, cutoff cage (valve, automatic brake) | WABCO | | |
| 558487 | Cover (valve, automatic brake) | WABCO | | |
| 558490 | Valve, cutoff seat (valve, automatic brake) | WABCO | | |
| 558491 | Valve, reservoir cutoff piston (valve, automatic brake) | WABCO | | |
| 558492 | Bracket, pipe (valve, independent brake) | WABCO | | |
| 558495 | Handle (valve, automatic brake) | WABCO | | |
| 558505 | Valve, quick-release body (valve, independent brake) | WABCO | | |
| 558508 | Valve, quick-release (valve, independent brake) | WABCO | | |
| 558509 | Valve, brake push pin (valve, independent brake) | WABCO | | |
| 558515 | Preformed packing | WABCO | | |
| 558534 | Gasket pipe bracket | WABCO | | |
| 558535 | Gasket bottom cover | WABCO | | |
| 558645 | Tube HP unloader riser (also listed as 552741) | WABCO | | |
| 558926 | Safety valve, type j-1 (set 150 LB) (see pb 25330) | WABCO | | |
| 558938 | Ring, retaining (valve, automatic brake) | WABCO | | |
| 558987 | Gasket pipe bracket | WABCO | | |