| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| GATES | K120720HD | Direct Cross Interchange | 34 |
| DAYCO | 5120720 | Direct Cross Interchange | 13 |
| Metric Standard | 12PK1830 | Direct Cross Interchange | 12 |
| ACDelco | 12K720 | Direct Cross Interchange | 11 |
| OE | 23511703 | Direct Cross Interchange | 11 |
| OE | 204336 | Direct Cross Interchange | 11 |
| OE | 73511730 | Direct Cross Interchange | 11 |
| OE | 506669 | Direct Cross Interchange | 11 |
| Contitech | 12PK1830 | Direct Cross Interchange | 11 |
| PIX Belts | 720K12 | Direct Cross Interchange | 11 |
| GOODYEAR | 4120720 | Direct Cross Interchange | 10 |
| DETROIT DIESEL | 23521337 | Direct Cross Interchange | 4 |
| DETROIT DIESEL | 23521155 | Direct Cross Interchange | 4 |
| DETROIT DIESEL | 23516105 | Direct Cross Interchange | 4 |
| DETROIT DIESEL | 23511703 | Direct Cross Interchange | 4 |
| ACDelco | K120720HD | Direct Cross Interchange | 4 |
| CARQUEST | K120720 | Direct Cross Interchange | 4 |
| JOHN DEERE | R503312 | Direct Cross Interchange | 3 |
| DAYCO | 23518297 | Direct Cross Interchange | 3 |
| DAYCO | 208769 | Direct Cross Interchange | 3 |
| DAYCO | 207468 | Direct Cross Interchange | 3 |
| DAYCO | 207431 | Direct Cross Interchange | 3 |
| DAYCO | 206966 | Direct Cross Interchange | 3 |
| DAYCO | 206958 | Direct Cross Interchange | 3 |
| DAYCO | 205637 | Direct Cross Interchange | 3 |
| DAYCO | 205578 | Direct Cross Interchange | 3 |
| DAYCO | 204915 | Direct Cross Interchange | 3 |
| DAYCO | 204780 | Direct Cross Interchange | 3 |
| DAYCO | 204717 | Direct Cross Interchange | 3 |
| DAYCO | 204336 | Direct Cross Interchange | 3 |
| DAYCO | 720K12 | Direct Cross Interchange | 3 |
| DETROIT DIESEL | 73511730 | Direct Cross Interchange | 3 |
| Size Designation | 12PK1830 | Direct Cross Interchange | 3 |
| Size Designation | 12PK1829 | Direct Cross Interchange | 3 |
| Size Designation | 12PK1825 | Direct Cross Interchange | 3 |
| Metric Standard | 12PK1825 | Direct Cross Interchange | 3 |
| NAPA | 25120720HD | Direct Cross Interchange | 3 |
| NAPA | 25120720 | Direct Cross Interchange | 3 |
| CARQUEST | K120720HD | Direct Cross Interchange | 3 |
| Dynacraft | D11027414 | Indirect Cross Interchange | 1 |
| DETROIT DIESEL | 23518297 | Indirect Cross Interchange | 1 |
| CUMMINS | 3098762 | Indirect Cross Interchange | 1 |
| CUMMINS | 3098375 | Indirect Cross Interchange | 1 |
| OE | 25120720HD | Indirect Cross Interchange | 1 |
| OE | 25120720 | Indirect Cross Interchange | 1 |