| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| AUTO EXTRA | AXCD1421 | Direct Cross Interchange | 1 |
| RAYBESTOS | ATD1421C | Indirect Cross Interchange | 1 |
| WAGNER | QC1421 | Indirect Cross Interchange | 1 |
| ACDelco | 17D1421CH | Indirect Cross Interchange | 1 |
| FEDERATED | D1421C | Indirect Cross Interchange | 1 |
| GM | 13237753 | Indirect Cross Interchange | 1 |
| PARTS PLUS | PCP1421 | Indirect Cross Interchange | 1 |
| NAPA | ETC8536 | Indirect Cross Interchange | 1 |
| NAPA | CMX8536 | Indirect Cross Interchange | 1 |
| NAPA | AEC8536 | Indirect Cross Interchange | 1 |
| MIGHTY | XL1421C | Indirect Cross Interchange | 1 |
| CARQUEST | BCD1421 | Indirect Cross Interchange | 1 |
| MONROE | CX1421 | Indirect Cross Interchange | 1 |
| RAYBESTOS | PGD1421C | Indirect Cross Interchange | 1 |