| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| DAYCO | 5060660 | Direct Cross Interchange | 3 |
| MIGHTY | 6K660 | Direct Cross Interchange | 2 |
| GOODYEAR | 4060660 | Indirect Cross Interchange | 2 |
| Mileage Maker | 660K6MK | Indirect Cross Interchange | 2 |
| Fresh Start | 660K6 | Indirect Cross Interchange | 2 |
| FRESHSTART | 660K6 | Indirect Cross Interchange | 2 |
| Metric Standard | 6PK1680 | Indirect Cross Interchange | 1 |
| Metric Standard | 6PK1675 | Indirect Cross Interchange | 1 |
| MACK | 88GB459P659 | Indirect Cross Interchange | 1 |
| MACK | 88GB453P659 | Indirect Cross Interchange | 1 |
| MACK | 88GB450P659 | Indirect Cross Interchange | 1 |
| GATES | K060660HD | Indirect Cross Interchange | 1 |
| GM | 93268090 | Indirect Cross Interchange | 1 |
| GATES | K060660 | Indirect Cross Interchange | 1 |
| GM | 15722647 | Indirect Cross Interchange | 1 |
| GATES | 68420 | Indirect Cross Interchange | 1 |
| GM | 10041244 | Indirect Cross Interchange | 1 |
| CONTITECH | PK060660 | Indirect Cross Interchange | 1 |
| BOSCH | 1987947979 | Indirect Cross Interchange | 1 |
| FORD | E69Z8620A | Indirect Cross Interchange | 1 |
| NAVISTAR | 3015621C1 | Indirect Cross Interchange | 1 |
| FORD | E59Z8620A | Indirect Cross Interchange | 1 |
| BANDO | 6PK1675 | Indirect Cross Interchange | 1 |
| FORD | E59E8620DA | Indirect Cross Interchange | 1 |
| BANDO | 660K6 | Indirect Cross Interchange | 1 |
| FORD | E59E8620AA | Indirect Cross Interchange | 1 |
| FORD | 3C2Z8620HA | Indirect Cross Interchange | 1 |
| FLENNOR | 6PK1678 | Indirect Cross Interchange | 1 |
| FORD | 1084993 | Indirect Cross Interchange | 1 |
| ACDelco | 6K660 | Indirect Cross Interchange | 1 |
| NAPA | 2571676 | Indirect Cross Interchange | 1 |
| CARQUEST | K060660HD | Indirect Cross Interchange | 1 |
| NAPA | 25060660 | Indirect Cross Interchange | 1 |
| CARQUEST | K060660 | Indirect Cross Interchange | 1 |
| OPTIBELT | 6PK1675 | Indirect Cross Interchange | 1 |
| DAYCO | 660K6 | Indirect Cross Interchange | 1 |
| CHAMP | 660K6 | Indirect Cross Interchange | 1 |
| AutoZone | 5060660 | Indirect Cross Interchange | 1 |
| FREIGHTLINER | 0227177001 | Indirect Cross Interchange | 1 |
| CRP | PK060660 | Indirect Cross Interchange | 1 |
| FREIGHTLINER | 0127177001 | Indirect Cross Interchange | 1 |
| MBL USA | 6PK1675 | Indirect Cross Interchange | 1 |
| FREIGHTLINER | 0126709012 | Indirect Cross Interchange | 1 |
| Dynacraft | D11027203 | Indirect Cross Interchange | 1 |
| FREIGHTLINER | 0124196011 | Indirect Cross Interchange | 1 |
| DURALAST | 660K6 | Indirect Cross Interchange | 1 |
| MR BELTS | 6PVK1675 | Indirect Cross Interchange | 1 |
| Contitech | PK060660 | Indirect Cross Interchange | 1 |
| DRIVERITE | 5060660DR | Indirect Cross Interchange | 1 |
| Contitech | 6PK1675 | Indirect Cross Interchange | 1 |
| CUMMINS | 3680197 | Indirect Cross Interchange | 1 |
| ATLAS TOOL | 276668 | Indirect Cross Interchange | 1 |
| PIRELLI | 660K6 | Indirect Cross Interchange | 1 |
| VOLKSWAGEN | 078903137RN | Indirect Cross Interchange | 1 |
| MOTORCRAFT | JK6686 | Indirect Cross Interchange | 1 |
| MOTORCRAFT | JK6666 | Indirect Cross Interchange | 1 |
| MOTORCRAFT | JK6664A | Indirect Cross Interchange | 1 |
| VOLKSWAGEN | 078903137 | Indirect Cross Interchange | 1 |
| GOODYEAR | 6PK1675 | Indirect Cross Interchange | 1 |
| PIX Belts | 660K6 | Indirect Cross Interchange | 1 |
| Durkee-Atwood | 660K6 | Indirect Cross Interchange | 1 |