| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| BCA | 521000 | Direct Cross Interchange | 3 |
| TIMKEN | HA590259K | Direct Cross Interchange | 3 |
| SKF | BR930259 | Direct Cross Interchange | 1 |
| OE | 1L241W002AA | Indirect Cross Interchange | 2 |
| OE | 1L241109AC | Indirect Cross Interchange | 2 |
| FAG | RW8431K | Indirect Cross Interchange | 2 |
| SKF | BR930259K | Indirect Cross Interchange | 2 |
| Drive Tech America | NT521000 | Indirect Cross Interchange | 2 |
| OE | 6L2Z1109B | Indirect Cross Interchange | 2 |
| OE | 6L241109AB | Indirect Cross Interchange | 2 |
| OE | 3L2Z1109AA | Indirect Cross Interchange | 2 |
| OE | 3L241W002AA | Indirect Cross Interchange | 2 |
| OE | 1L2Z1109AB | Indirect Cross Interchange | 2 |
| OE | 1L2Z1109AA | Indirect Cross Interchange | 2 |
| GMB | 7250177 | Indirect Cross Interchange | 1 |
| FEDERAL MOGUL | 521001 | Indirect Cross Interchange | 1 |
| FEDERAL MOGUL | 521000 | Indirect Cross Interchange | 1 |
| RAYBESTOS | 721001 | Indirect Cross Interchange | 1 |
| RAYBESTOS | 721000 | Indirect Cross Interchange | 1 |
| PTC | PT521000 | Indirect Cross Interchange | 1 |
| FORD | 6L2Z1109B | Indirect Cross Interchange | 1 |
| FORD | 3L2Z1109AA | Indirect Cross Interchange | 1 |
| FORD | 3C5Z1104AA | Indirect Cross Interchange | 1 |
| FORD | 1L2Z1109AA | Indirect Cross Interchange | 1 |
| PRONTO | PT521000 | Indirect Cross Interchange | 1 |
| MOTORCRAFT | HUB69 | Indirect Cross Interchange | 1 |
| MOTORCRAFT | HUB132 | Indirect Cross Interchange | 1 |
| MOTORCRAFT | HUB115 | Indirect Cross Interchange | 1 |
| FEDERAL | 521001 | Indirect Cross Interchange | 1 |
| FEDERAL | 521000 | Indirect Cross Interchange | 1 |
| Precision Seals & Bearings | 521000 | Indirect Cross Interchange | 1 |
| DT Components | 521000 | Indirect Cross Interchange | 1 |