| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| PIRELLI | 4B68 | Direct Cross Interchange | 18 |
| GOODYEAR | 4B68 | Direct Cross Interchange | 18 |
| OPTIBELT | 4B68 | Direct Cross Interchange | 18 |
| PIX Belts | B68/04 | Direct Cross Interchange | 18 |
| THERMOID | 4B68 | Direct Cross Interchange | 18 |
| GOODRICH | 4B68 | Direct Cross Interchange | 18 |
| UNIROYAL | 4B68 | Direct Cross Interchange | 18 |
| JASON | RB684 | Direct Cross Interchange | 18 |
| Durkee-Atwood | 4B68 | Direct Cross Interchange | 18 |
| Industry Standard | 4B68 | Direct Cross Interchange | 18 |
| Metric Standard | 16C1800J4 | Direct Cross Interchange | 18 |
| DODGE | 4XB68 | Direct Cross Interchange | 18 |
| DODGE | 107394 | Direct Cross Interchange | 18 |
| DAYCO | RBP684 | Direct Cross Interchange | 18 |
| DAYCO | 4RBP68 | Direct Cross Interchange | 18 |
| BANDO | 4B68 | Direct Cross Interchange | 18 |