| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| DASH 4 | CFD721 | Direct Cross Interchange | 1 |
| DASH 4 | CD721 | Direct Cross Interchange | 1 |
| Morse Brake | CMX721 | Indirect Cross Interchange | 2 |
| OE | 26296AC040 | Indirect Cross Interchange | 2 |
| NAPA | UP75 | Indirect Cross Interchange | 2 |
| NAPA | TS7589X | Indirect Cross Interchange | 2 |
| NAPA | SS7589X | Indirect Cross Interchange | 2 |
| CENTRIC | 10907210 | Indirect Cross Interchange | 2 |
| CENTRIC | 10507210 | Indirect Cross Interchange | 2 |
| BENDIX | RD721 | Indirect Cross Interchange | 2 |
| BENDIX | D721CT | Indirect Cross Interchange | 2 |
| BENDIX | D721 | Indirect Cross Interchange | 2 |
| RAYBESTOS | PGD721C | Indirect Cross Interchange | 2 |
| RAYBESTOS | ATD721C | Indirect Cross Interchange | 2 |
| WAGNER | PD721 | Indirect Cross Interchange | 1 |
| AMS | S721 | Indirect Cross Interchange | 1 |
| WAGNER | ZD721 | Indirect Cross Interchange | 1 |