| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| MRC | 7421P | Direct Cross Interchange | 13 |
| MRC | 7421 | Direct Cross Interchange | 13 |
| MRC | 421R | Direct Cross Interchange | 13 |
| JOY MFG | J94CX7421 | Direct Cross Interchange | 13 |
| JOY MFG | H94CX421 | Direct Cross Interchange | 13 |
| NDH | 20421 | Direct Cross Interchange | 13 |
| RHP | 7421 | Direct Cross Interchange | 13 |
| NTN | 7421B | Direct Cross Interchange | 13 |
| SCHEERER | QJ421 | Direct Cross Interchange | 13 |
| SCHEERER | 7421 | Direct Cross Interchange | 13 |
| HOFFMANN | 605ACDA | Direct Cross Interchange | 13 |