| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| RAYBESTOS | PGD1421C | Direct Cross Interchange | 12 |
| RAYBESTOS | ATD1421C | Direct Cross Interchange | 11 |
| CARQUEST | BCD1421 | Direct Cross Interchange | 11 |
| GM | 13237753 | Direct Cross Interchange | 10 |
| ATE | AT1421 | Direct Cross Interchange | 10 |
| BENDIX | D1421 | Direct Cross Interchange | 9 |
| TRW | TPC1421 | Direct Cross Interchange | 9 |
| GM | 20963796 | Direct Cross Interchange | 9 |
| GM | 20877794 | Direct Cross Interchange | 9 |
| AutoZone | PGD1421C | Direct Cross Interchange | 7 |
| AutoZone | ATD1421C | Direct Cross Interchange | 7 |
| AUTO EXTRA | AXCD1421 | Direct Cross Interchange | 5 |
| GM | 13312895 | Direct Cross Interchange | 5 |
| AutoZone | D1421 | Direct Cross Interchange | 3 |
| AMS | SPQ1421 | Direct Cross Interchange | 3 |
| NAPA | UP8536X | Direct Cross Interchange | 1 |
| NAPA | SS8536X | Direct Cross Interchange | 1 |
| MONROE | CX1421 | Indirect Cross Interchange | 8 |
| FEDERATED | D1421C | Indirect Cross Interchange | 7 |
| SAAB | 13237753 | Indirect Cross Interchange | 7 |
| SAAB | 13237750 | Indirect Cross Interchange | 7 |
| NAPA | CMX8536 | Indirect Cross Interchange | 6 |
| NAPA | AEC8536 | Indirect Cross Interchange | 6 |
| ACDelco | 17D1421CH | Indirect Cross Interchange | 6 |
| AKEBONO | ACT924 | Indirect Cross Interchange | 6 |
| MIGHTY | XL1421C | Indirect Cross Interchange | 5 |
| PARTS PLUS | PCP1421 | Indirect Cross Interchange | 5 |
| CARQUEST | ACT924 | Indirect Cross Interchange | 4 |
| TRW | GDB1782 | Indirect Cross Interchange | 3 |
| GIRLING | 6117829 | Indirect Cross Interchange | 3 |
| CENTRIC | 1061421 | Indirect Cross Interchange | 3 |
| OE | 20877794 | Indirect Cross Interchange | 2 |
| OE | 13312895 | Indirect Cross Interchange | 2 |
| OE | 13237753 | Indirect Cross Interchange | 2 |
| FMSI | D14218536 | Indirect Cross Interchange | 2 |
| CENTRIC | 10514210 | Indirect Cross Interchange | 2 |
| FMSI | 8536D1421 | Indirect Cross Interchange | 2 |
| CENTRIC | 10614210 | Indirect Cross Interchange | 2 |
| NEWTEK | D1421 | Indirect Cross Interchange | 2 |
| FMSI | 8536D1559 | Indirect Cross Interchange | 1 |
| BENDIX | D1421CT | Indirect Cross Interchange | 1 |
| NAPA | PEC8536 | Indirect Cross Interchange | 1 |
| NAPA | ETC8536 | Indirect Cross Interchange | 1 |
| SAAB | 13237752 | Indirect Cross Interchange | 1 |
| SAAB | 13237751 | Indirect Cross Interchange | 1 |
| GM | 13237752 | Indirect Cross Interchange | 1 |
| GM | 13237751 | Indirect Cross Interchange | 1 |
| GM | 13237750 | Indirect Cross Interchange | 1 |
| MAGNETI MARELLI | 1AMV301421 | Indirect Cross Interchange | 1 |
| BRAKE BEST | C924 | Indirect Cross Interchange | 1 |
| Professionals Choice | SPQ1421 | Indirect Cross Interchange | 1 |
| CHEVROLET | 20877794 | Indirect Cross Interchange | 1 |
| CHEVROLET | 13237753 | Indirect Cross Interchange | 1 |
| RAYBESTOS | PGD1241C | Indirect Cross Interchange | 1 |
| ACDelco | 1711072 | Indirect Cross Interchange | 1 |
| ACDelco | 1711020 | Indirect Cross Interchange | 1 |
| ACDelco | PR1421 | Indirect Cross Interchange | 1 |
| CENTRIC | 1051421 | Indirect Cross Interchange | 1 |
| CARQUEST | PCD924 | Indirect Cross Interchange | 1 |
| CARQUEST | BCD1421H | Indirect Cross Interchange | 1 |
| BOSCH | BP924 | Indirect Cross Interchange | 1 |
| FMSI | 8536 | Indirect Cross Interchange | 1 |
| FMSI | D1421 | Indirect Cross Interchange | 1 |