| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| GATES | K060645 | Direct Cross Interchange | 6 |
| Mileage Maker | 645K6MK | Direct Cross Interchange | 4 |
| FLENNOR | 6PK1638 | Direct Cross Interchange | 3 |
| GOODYEAR | 4060645 | Direct Cross Interchange | 3 |
| CARQUEST | K060645 | Direct Cross Interchange | 3 |
| DAYCO | 6PVK1640 | Indirect Cross Interchange | 5 |
| DAYCO | 5060645 | Indirect Cross Interchange | 5 |
| ACDelco | 6K645 | Indirect Cross Interchange | 5 |
| CONTITECH | PK060645 | Indirect Cross Interchange | 4 |
| NAPA | 25060645 | Indirect Cross Interchange | 4 |
| Metric Standard | 6PK1640 | Indirect Cross Interchange | 3 |
| SUBARU | 809221100 | Indirect Cross Interchange | 3 |
| SUBARU | 809221050 | Indirect Cross Interchange | 3 |
| GM | 12627522 | Indirect Cross Interchange | 3 |
| GM | 12612387 | Indirect Cross Interchange | 3 |
| MIGHTY | 6K642 | Indirect Cross Interchange | 3 |
| Size Designation | 6PK1640 | Indirect Cross Interchange | 3 |
| DAYCO | 645K6 | Indirect Cross Interchange | 3 |
| MBL USA | 6PK1640 | Indirect Cross Interchange | 2 |
| Cadna | 645K6 | Indirect Cross Interchange | 2 |
| CHEVROLET | 12627522 | Indirect Cross Interchange | 2 |
| BANDO | 6PK1640 | Indirect Cross Interchange | 2 |
| OE | 25060645 | Indirect Cross Interchange | 1 |
| DURALAST | 645K6 | Indirect Cross Interchange | 1 |
| DAYCO | 643K6 | Indirect Cross Interchange | 1 |
| DAYCO | 5060643 | Indirect Cross Interchange | 1 |
| AutoZone | 5060643 | Indirect Cross Interchange | 1 |
| Dynaflex | 643K6 | Indirect Cross Interchange | 1 |
| MR BELTS | 6PVK1630 | Indirect Cross Interchange | 1 |
| DRIVERITE | 5060643DR | Indirect Cross Interchange | 1 |
| CRP | PK060645 | Indirect Cross Interchange | 1 |