| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| SKF | 6231 | Direct Cross Interchange | 1 |
| MACK | 6231 | Indirect Cross Interchange | 1 |
| MACK | 14586231 | Indirect Cross Interchange | 1 |
| FORD | 96586231 | Indirect Cross Interchange | 1 |
| NAVISTAR | CR6231 | Indirect Cross Interchange | 1 |
| PACCAR | 6231CHR | Indirect Cross Interchange | 1 |