| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| STANDARD MOTOR PRODUCTS | EM6588U | Direct Cross Interchange | 1 |
| STANDARD MOTOR PRODUCTS | EM6588 | Direct Cross Interchange | 1 |
| STANDARD MOTOR | EM6588U | Direct Cross Interchange | 1 |
| GM | 12218208 | Indirect Cross Interchange | 3 |
| GM | 16216588 | Indirect Cross Interchange | 3 |