| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| MONROE | DX421A | Direct Cross Interchange | 2 |
| CENTRIC | 10204210 | Direct Cross Interchange | 1 |
| AutoZone | SGD421AM | Indirect Cross Interchange | 2 |
| AutoZone | PGD421M | Indirect Cross Interchange | 1 |
| RAYBESTOS | SGD421M | Indirect Cross Interchange | 1 |
| RAYBESTOS | PGD421M | Indirect Cross Interchange | 1 |
| DURA | BP324MS | Indirect Cross Interchange | 1 |
| WAGNER | MX421A | Indirect Cross Interchange | 1 |
| ACDelco | 17D421M | Indirect Cross Interchange | 1 |
| ACDelco | 17D421C | Indirect Cross Interchange | 1 |
| PARTS PLUS | 200434211 | Indirect Cross Interchange | 1 |
| CENTRIC | 10604210 | Indirect Cross Interchange | 1 |
| CENTRIC | 10404210 | Indirect Cross Interchange | 1 |
| CARQUEST | GMD421F | Indirect Cross Interchange | 1 |
| R1 Concepts | S0604210 | Indirect Cross Interchange | 1 |
| R1 Concepts | S0404210 | Indirect Cross Interchange | 1 |
| R1 Concepts | A0604210 | Indirect Cross Interchange | 1 |
| R1 Concepts | A0404210 | Indirect Cross Interchange | 1 |
| AUTO EXTRA | AXMD421 | Indirect Cross Interchange | 1 |
| AMS | SPQ421L | Indirect Cross Interchange | 1 |
| AMS | DMX421L | Indirect Cross Interchange | 1 |
| AutoZone | SGD421M | Indirect Cross Interchange | 1 |