| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| SKF | 20421 | Direct Cross Interchange | 1 |
| KACO | 52X68X8DG | Indirect Cross Interchange | 1 |
| L&S Bearing | 7120421 | Indirect Cross Interchange | 1 |
| KACO | 52X68X8DF | Indirect Cross Interchange | 1 |
| MACK | 20421 | Indirect Cross Interchange | 1 |
| KACO | 52X68X810DG | Indirect Cross Interchange | 1 |
| FORD | 965820421 | Indirect Cross Interchange | 1 |
| KACO | 52X68X7DF | Indirect Cross Interchange | 1 |
| ITM | 1521104 | Indirect Cross Interchange | 1 |
| ITM | 1520107 | Indirect Cross Interchange | 1 |
| KACO | 52X68X79DFS | Indirect Cross Interchange | 1 |
| GREEN | 225220 | Indirect Cross Interchange | 1 |
| KACO | 52X68X10DFS | Indirect Cross Interchange | 1 |
| GREEN | 1884 | Indirect Cross Interchange | 1 |
| KACO | 52X68X10DFK | Indirect Cross Interchange | 1 |
| FEDERAL MOGUL | 52X68X8 | Indirect Cross Interchange | 1 |
| FEDERAL MOGUL | 225220 | Indirect Cross Interchange | 1 |
| KACO | 52X68X10DF | Indirect Cross Interchange | 1 |
| CARQUEST | 52X68X8 | Indirect Cross Interchange | 1 |
| PACCAR | 20421CHR | Indirect Cross Interchange | 1 |
| CARQUEST | 225220 | Indirect Cross Interchange | 1 |
| FREIGHTLINER | CHR20421 | Indirect Cross Interchange | 1 |
| ALLOY | 1287 | Indirect Cross Interchange | 1 |
| Precision Seals & Bearings | 52X68X8 | Indirect Cross Interchange | 1 |
| Precision Seals & Bearings | 4990 | Indirect Cross Interchange | 1 |
| DT Components | 52X68X8 | Indirect Cross Interchange | 1 |
| DT Components | 4990 | Indirect Cross Interchange | 1 |
| PTC | PT5696 | Indirect Cross Interchange | 1 |
| MIDAS | GS1150 | Indirect Cross Interchange | 1 |
| MIDAS | GS1140 | Indirect Cross Interchange | 1 |
| STEFA | 52X68X12CB | Indirect Cross Interchange | 1 |
| STEFA | 52X68X12AA | Indirect Cross Interchange | 1 |
| STEFA | 52X68X10DB | Indirect Cross Interchange | 1 |
| STEFA | 52X68X10CC1 | Indirect Cross Interchange | 1 |
| STEFA | 52X68X08CC | Indirect Cross Interchange | 1 |
| STEFA | 52X68X08BC | Indirect Cross Interchange | 1 |
| STEFA | 52X68X08BB | Indirect Cross Interchange | 1 |
| STEFA | 52X68X06BD | Indirect Cross Interchange | 1 |
| TRANSCOM | 52X68X8SB | Indirect Cross Interchange | 1 |
| NATIONAL | 4990 | Indirect Cross Interchange | 1 |
| NAVISTAR | CR20421 | Indirect Cross Interchange | 1 |
| ABC | 7120421 | Indirect Cross Interchange | 1 |
| TIMKEN | 52X68X8 | Indirect Cross Interchange | 1 |
| WESTON | 52X68X8R4 | Indirect Cross Interchange | 1 |
| TIMKEN | 4990 | Indirect Cross Interchange | 1 |
| VICTOR | 66771 | Indirect Cross Interchange | 1 |
| TIMKEN | 225220 | Indirect Cross Interchange | 1 |
| VICTOR | 66761 | Indirect Cross Interchange | 1 |