| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| AKEBONO | ACT921 | Direct Cross Interchange | 2 |
| BENDIX | MKD921 | Direct Cross Interchange | 2 |
| MIGHTY | XL921M | Direct Cross Interchange | 1 |
| RAYBESTOS | PGD921M | Indirect Cross Interchange | 3 |
| WAGNER | MX921 | Indirect Cross Interchange | 3 |
| AMS | SPQ921 | Indirect Cross Interchange | 2 |
| GM | 88959954 | Indirect Cross Interchange | 2 |
| GM | 88959947 | Indirect Cross Interchange | 2 |
| GM | 89060358 | Indirect Cross Interchange | 2 |
| ACDelco | 17D921CH | Indirect Cross Interchange | 2 |
| RAYBESTOS | PGD921C | Indirect Cross Interchange | 2 |
| RAYBESTOS | ATD921C | Indirect Cross Interchange | 2 |
| GM | 19108021 | Indirect Cross Interchange | 2 |
| CENTRIC | 10609210 | Indirect Cross Interchange | 2 |
| NAPA | AE7822M | Indirect Cross Interchange | 2 |
| FMSI | 7822D921 | Indirect Cross Interchange | 2 |
| AIMCO | SPM921S | Indirect Cross Interchange | 1 |
| GM | 89060375 | Indirect Cross Interchange | 1 |
| GM | 89032286 | Indirect Cross Interchange | 1 |
| ACDelco | 17D921MH | Indirect Cross Interchange | 1 |
| GM | 88967250 | Indirect Cross Interchange | 1 |
| ACDelco | 14D921CH | Indirect Cross Interchange | 1 |
| GM | 88967243 | Indirect Cross Interchange | 1 |
| CENTRIC | 1060921 | Indirect Cross Interchange | 1 |
| AUTO EXTRA | AXMD921 | Indirect Cross Interchange | 1 |
| CENTRIC | 10509210 | Indirect Cross Interchange | 1 |
| AUTO EXTRA | AXCD921 | Indirect Cross Interchange | 1 |
| CENTRIC | 1050921 | Indirect Cross Interchange | 1 |
| CENTRIC | 10409210 | Indirect Cross Interchange | 1 |
| CENTRIC | 1040921 | Indirect Cross Interchange | 1 |
| CENTRIC | 10209210 | Indirect Cross Interchange | 1 |
| MONROE | DX921 | Indirect Cross Interchange | 1 |
| CENTRIC | 1020921 | Indirect Cross Interchange | 1 |
| BOSCH | BP921 | Indirect Cross Interchange | 1 |
| CARQUEST | BMD921 | Indirect Cross Interchange | 1 |
| RAYBESTOS | SGD921C | Indirect Cross Interchange | 1 |
| RAYBESTOS | PGD921QS | Indirect Cross Interchange | 1 |
| CARQUEST | BCD921 | Indirect Cross Interchange | 1 |
| MIGHTY | D921 | Indirect Cross Interchange | 1 |
| AUTOSPECIALTY | 2492102 | Indirect Cross Interchange | 1 |
| FMSI | D9217822 | Indirect Cross Interchange | 1 |
| AUTOSPECIALTY | 1492112 | Indirect Cross Interchange | 1 |
| FMSI | D11107822 | Indirect Cross Interchange | 1 |
| AutoZone | SGD921C | Indirect Cross Interchange | 1 |
| SATISFIED BRAKE PRODUCTS | PR921 | Indirect Cross Interchange | 1 |
| AutoZone | PGD921M | Indirect Cross Interchange | 1 |
| SATISFIED BRAKE PRODUCTS | CL921 | Indirect Cross Interchange | 1 |
| AutoZone | PGD921C | Indirect Cross Interchange | 1 |
| NAPA | SS7822M | Indirect Cross Interchange | 1 |
| AutoZone | ATD921C | Indirect Cross Interchange | 1 |
| NAPA | MSS7822M | Indirect Cross Interchange | 1 |
| AUTOPART INTERNATIONAL | 141237471 | Indirect Cross Interchange | 1 |
| NAPA | CMX7822 | Indirect Cross Interchange | 1 |
| AUTOPART INTERNATIONAL | 140386782 | Indirect Cross Interchange | 1 |
| FMSI | 7822D1110 | Indirect Cross Interchange | 1 |
| AUTOPART INTERNATIONAL | 140269782 | Indirect Cross Interchange | 1 |
| GM | 19180275 | Indirect Cross Interchange | 1 |
| FEDERATED | MD921 | Indirect Cross Interchange | 1 |
| WAGNER | PD921 | Indirect Cross Interchange | 1 |
| Morse Brake | MKD921 | Indirect Cross Interchange | 1 |