| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| SKF | BR39521 | Direct Cross Interchange | 1 |
| TIMKEN | 39521 | Indirect Cross Interchange | 1 |
| NTN | 39521 | Indirect Cross Interchange | 1 |
| KOYO | 39521 | Indirect Cross Interchange | 1 |
| PERFECT CIRCLE | 39521 | Indirect Cross Interchange | 1 |
| ACDelco | 39521 | Indirect Cross Interchange | 1 |
| ALLIS-CHALMERS | 927883 | Indirect Cross Interchange | 1 |
| CLARK | 1308702 | Indirect Cross Interchange | 1 |
| Precision Seals & Bearings | 39521 | Indirect Cross Interchange | 1 |
| DT Components | 39521 | Indirect Cross Interchange | 1 |
| Deutz-Allis | 709278832 | Indirect Cross Interchange | 1 |
| McQuay-Norris | BT39521 | Indirect Cross Interchange | 1 |
| ABC | 39521 | Indirect Cross Interchange | 1 |
| L&S Bearing | 39521 | Indirect Cross Interchange | 1 |
| WHITE MOTOR | 200000547 | Indirect Cross Interchange | 1 |
| MACK | 1458BR39521 | Indirect Cross Interchange | 1 |
| GM | 9423273 | Indirect Cross Interchange | 1 |
| GM | 7451580 | Indirect Cross Interchange | 1 |
| SEALED POWER | F39521 | Indirect Cross Interchange | 1 |
| FEDERAL MOGUL | 39521 | Indirect Cross Interchange | 1 |
| CARQUEST | 39521 | Indirect Cross Interchange | 1 |