| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| MINTEX | MBA521 | Direct Cross Interchange | 2 |
| TEXTAR | 97001400 | Direct Cross Interchange | 2 |
| A.B.S. | 0521Q | Direct Cross Interchange | 1 |
| ATE | 03013792292 | Indirect Cross Interchange | 3 |
| METZGER | CR521 | Indirect Cross Interchange | 2 |
| DELPHI | LY1008 | Indirect Cross Interchange | 2 |
| TEXTAR | 97401001491 | Indirect Cross Interchange | 2 |
| PAGID | X0006 | Indirect Cross Interchange | 2 |
| APEC braking | KIT721 | Indirect Cross Interchange | 2 |
| HAVAM | HP3521 | Indirect Cross Interchange | 1 |
| OJD (QUICK BRAKE) | 0521 | Indirect Cross Interchange | 1 |
| VW | 608052100 | Indirect Cross Interchange | 1 |
| PEX | 521 | Indirect Cross Interchange | 1 |