| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| Precision Seals & Bearings | A21 | Direct Cross Interchange | 1 |
| DT Components | A21 | Direct Cross Interchange | 1 |
| CHICAGO RAWHIDE | BR21 | Indirect Cross Interchange | 2 |
| BRITISH LEYLAND | GHB106 | Indirect Cross Interchange | 2 |
| BRITISH LEYLAND | 431570 | Indirect Cross Interchange | 2 |
| MIDAS | WB1011 | Indirect Cross Interchange | 2 |
| WORLD PARTS | W72414 | Indirect Cross Interchange | 2 |
| IAPCO | L0113003 | Indirect Cross Interchange | 2 |
| TRIUMPH | 58616 | Indirect Cross Interchange | 2 |
| MERCEDES-BENZ | 431570 | Indirect Cross Interchange | 2 |
| JAGUAR | 431570 | Indirect Cross Interchange | 2 |
| ISUZU | 5098120150 | Indirect Cross Interchange | 2 |
| FORD | D0RY1201A | Indirect Cross Interchange | 2 |
| CHRYSLER | P43531 | Indirect Cross Interchange | 2 |
| CHRYSLER | 9192125 | Indirect Cross Interchange | 2 |
| CHRYSLER | 9192015 | Indirect Cross Interchange | 2 |
| VERA | 6400642 | Indirect Cross Interchange | 2 |
| SEALED POWER | FS21 | Indirect Cross Interchange | 2 |
| MASSEY-FERGUSON | 641150M91 | Indirect Cross Interchange | 2 |
| ITM | 3804004 | Indirect Cross Interchange | 2 |
| SKF | NO21SET | Indirect Cross Interchange | 2 |
| SKF | BR21 | Indirect Cross Interchange | 2 |
| TIMKEN | SET21 | Indirect Cross Interchange | 2 |
| FAG | KIT21 | Indirect Cross Interchange | 2 |
| IHC | 392674R91 | Indirect Cross Interchange | 2 |
| IHC | 3049843R91 | Indirect Cross Interchange | 2 |
| IHC | 3043872R91 | Indirect Cross Interchange | 2 |