| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| SKF | 21121 | Direct Cross Interchange | 1 |
| DT Components | 42101S | Indirect Cross Interchange | 1 |
| Deutz-Allis | 711890699 | Indirect Cross Interchange | 1 |
| Deutz-Allis | 71189069 | Indirect Cross Interchange | 1 |
| Deutz-Allis | 1189069 | Indirect Cross Interchange | 1 |
| TRANSCOM | 212892VB | Indirect Cross Interchange | 1 |
| Fel-Pro | 15897 | Indirect Cross Interchange | 1 |
| ABC | 7121121 | Indirect Cross Interchange | 1 |
| VICTOR | 47430 | Indirect Cross Interchange | 1 |
| L&S Bearing | 7121121 | Indirect Cross Interchange | 1 |
| L&S Bearing | 61161S | Indirect Cross Interchange | 1 |
| L&S Bearing | 61161 | Indirect Cross Interchange | 1 |
| MACK | 21121 | Indirect Cross Interchange | 1 |
| MACK | 145821121 | Indirect Cross Interchange | 1 |
| FORD | 965821121 | Indirect Cross Interchange | 1 |
| FEDERAL MOGUL | 42101S | Indirect Cross Interchange | 1 |
| FEDERAL MOGUL | 42101 | Indirect Cross Interchange | 1 |
| CARQUEST | 42101S | Indirect Cross Interchange | 1 |
| CHAMPION | 6838044 | Indirect Cross Interchange | 1 |
| NATIONAL | 42101S | Indirect Cross Interchange | 1 |
| NAVISTAR | CR21121 | Indirect Cross Interchange | 1 |
| TIMKEN | 42101S | Indirect Cross Interchange | 1 |
| TIMKEN | 42101 | Indirect Cross Interchange | 1 |
| IHC | 259323C91 | Indirect Cross Interchange | 1 |
| IHC | 250646C91 | Indirect Cross Interchange | 1 |
| PACCAR | 21121CHR | Indirect Cross Interchange | 1 |
| ACDelco | 29099 | Indirect Cross Interchange | 1 |
| ALLIS-CHALMERS | 711890699 | Indirect Cross Interchange | 1 |
| ALLIS-CHALMERS | 71189069 | Indirect Cross Interchange | 1 |
| FREIGHTLINER | CHR21121 | Indirect Cross Interchange | 1 |
| Precision Seals & Bearings | 42101S | Indirect Cross Interchange | 1 |