| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| DURA | BP621C | Direct Cross Interchange | 1 |
| BENDIX | D621CT | Indirect Cross Interchange | 1 |
| BENDIX | D621C | Indirect Cross Interchange | 1 |
| RAYBESTOS | PGD621QS | Indirect Cross Interchange | 1 |
| WAGNER | QC621 | Indirect Cross Interchange | 1 |
| QUALITEE | CE621 | Indirect Cross Interchange | 1 |
| Morse Brake | CMX621 | Indirect Cross Interchange | 1 |
| SATISFIED BRAKE PRODUCTS | PR621C | Indirect Cross Interchange | 1 |
| OE | 7497D621C | Indirect Cross Interchange | 1 |
| IMC | D621RU | Indirect Cross Interchange | 1 |
| CENTRIC | 10506210 | Indirect Cross Interchange | 1 |
| AUTOSPECIALTY | 1662112 | Indirect Cross Interchange | 1 |
| AMERICAN REMANUFACTURING | 68D621 | Indirect Cross Interchange | 1 |