| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| GATES | T121 | Direct Cross Interchange | 5 |
| FLENNOR | TB121 | Direct Cross Interchange | 4 |
| ACDelco | TB121 | Direct Cross Interchange | 4 |
| CARQUEST | T121 | Direct Cross Interchange | 4 |
| DAYCO | 95121 | Indirect Cross Interchange | 4 |
| GOODYEAR | 40121 | Indirect Cross Interchange | 4 |
| Mileage Maker | CD121 | Indirect Cross Interchange | 4 |
| FRESHSTART | CD121 | Indirect Cross Interchange | 4 |
| MIGHTY | CD121 | Indirect Cross Interchange | 4 |
| ISUZU | 94158327 | Indirect Cross Interchange | 3 |
| ISUZU | 8942372420 | Indirect Cross Interchange | 3 |
| ISUZU | 8942152540 | Indirect Cross Interchange | 3 |
| ISUZU | 8941583270 | Indirect Cross Interchange | 3 |
| VERA | 4501853 | Indirect Cross Interchange | 3 |
| GATES | 5121 | Indirect Cross Interchange | 3 |
| CONTITECH | TB121 | Indirect Cross Interchange | 3 |
| NAPA | 2590640 | Indirect Cross Interchange | 3 |
| NAPA | 250121 | Indirect Cross Interchange | 3 |
| Fresh Start | CD121 | Indirect Cross Interchange | 3 |
| BRYCO | B121 | Indirect Cross Interchange | 3 |
| BORG WARNER | TB121 | Indirect Cross Interchange | 3 |
| ATLAS | TB1001 | Indirect Cross Interchange | 3 |
| DAYCO | 95121FN | Indirect Cross Interchange | 3 |
| MELLING | B0121 | Indirect Cross Interchange | 3 |
| LAZORLITE | L554774 | Indirect Cross Interchange | 3 |
| DYNAGEAR | TB121 | Indirect Cross Interchange | 3 |
| BANDO | 111ZA19 | Indirect Cross Interchange | 3 |
| MITSUBOSHI | 111ZA19 | Indirect Cross Interchange | 3 |
| BECK/ARNLEY | 0260253 | Indirect Cross Interchange | 3 |
| Durkee-Atwood | 88121 | Indirect Cross Interchange | 3 |
| ISUZU | 94215254 | Indirect Cross Interchange | 3 |
| CRP | TB121 | Indirect Cross Interchange | 1 |
| OE | 85868150 | Indirect Cross Interchange | 1 |
| ISUZU | 0941583270 | Indirect Cross Interchange | 1 |
| GM | 94215254 | Indirect Cross Interchange | 1 |
| Industry Standard | 121 | Indirect Cross Interchange | 1 |
| MITSUBISHI | 111ZA19 | Indirect Cross Interchange | 1 |
| Contitech | TB121 | Indirect Cross Interchange | 1 |
| Contitech | CT699 | Indirect Cross Interchange | 1 |
| BORG WARNR | TB121 | Indirect Cross Interchange | 1 |
| ATLAS TOOL | TB1001 | Indirect Cross Interchange | 1 |
| REPCO | 4121 | Indirect Cross Interchange | 1 |
| BANDO | TB121 | Indirect Cross Interchange | 1 |
| PIRELLI | TB121 | Indirect Cross Interchange | 1 |
| PIRELLI | 88121 | Indirect Cross Interchange | 1 |
| PIRELLI | 111R190 | Indirect Cross Interchange | 1 |
| DNJ | TB304 | Indirect Cross Interchange | 1 |