WABCO part numbers starting 538
| 538101 | Brake valve | WABCO | ||
| 538204 | Drain cock | WABCO | ||
| 538251 | Compression helical spring | WABCO | ||
| 538256 | Compression helical spring | WABCO | ||
| 538369 | Brake portion check valve | WABCO | ||
| 538383 | Plug | WABCO | ||
| 538445 | Supply valve | WABCO | ||
| 538507 | Gasket | WABCO | ||
| 538541 | Air cup | WABCO | ||
| 538796 | Line actuating cylinder assembly | WABCO | ||
| 538829 | Compression helical spring | WABCO | ||
| 538975 | Air pressure relay valve | WABCO | ||
| 538976 | Gasket | WABCO |