| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| BENDIX | MRD821 | Direct Cross Interchange | 1 |
| AMS | S821 | Direct Cross Interchange | 1 |
| SATISFIED BRAKE PRODUCTS | PR821 | Indirect Cross Interchange | 1 |
| NAPA | AE7694M | Indirect Cross Interchange | 1 |
| FMSI | 7694D821 | Indirect Cross Interchange | 1 |
| RAYBESTOS | SGD821M | Indirect Cross Interchange | 1 |
| WAGNER | ZX821 | Indirect Cross Interchange | 1 |
| DASH 4 | CD859 | Indirect Cross Interchange | 1 |
| DASH 4 | CD821 | Indirect Cross Interchange | 1 |
| CENTRIC | 10408210 | Indirect Cross Interchange | 1 |
| AMS | DMX821 | Indirect Cross Interchange | 1 |
| Morse Brake | MX821 | Indirect Cross Interchange | 1 |
| UNIVERSAL (BRAKE) | MXD821 | Indirect Cross Interchange | 1 |
| UNIVERSAL (BRAKE) | MDS821 | Indirect Cross Interchange | 1 |