| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| STANDARD MOTOR PRODUCTS | EM7321U | Direct Cross Interchange | 1 |
| STANDARD MOTOR PRODUCTS | EM7321 | Direct Cross Interchange | 1 |
| STANDARD MOTOR | EM7321U | Direct Cross Interchange | 1 |
| CARDONE | 777321F | Direct Cross Interchange | 1 |
| GM | 16247321 | Indirect Cross Interchange | 4 |
| CHEVROLET | 16247321 | Indirect Cross Interchange | 1 |
| OLDSMOBILE | 16268183 | Indirect Cross Interchange | 1 |
| OLDSMOBILE | 16247321 | Indirect Cross Interchange | 1 |
| CHEVROLET | 16268183 | Indirect Cross Interchange | 1 |