| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| OPEN PARTS | WAP820000 | Direct Cross Interchange | 1 |
| VW | 54121004 | Indirect Cross Interchange | 1 |
| VAICO | V1050028 | Indirect Cross Interchange | 1 |
| VW | 054121004A | Indirect Cross Interchange | 1 |
| MAPCO | 21823 | Indirect Cross Interchange | 1 |
| METELLI | 240591 | Indirect Cross Interchange | 1 |
| VW | 054121004 | Indirect Cross Interchange | 1 |
| SKODA | 54121004A | Indirect Cross Interchange | 1 |
| SKODA | 54121004 | Indirect Cross Interchange | 1 |
| SKODA | 054121004A | Indirect Cross Interchange | 1 |
| SKODA | 054121004 | Indirect Cross Interchange | 1 |
| SEAT | 54121004A | Indirect Cross Interchange | 1 |
| SEAT | 54121004 | Indirect Cross Interchange | 1 |
| SEAT | 054121004A | Indirect Cross Interchange | 1 |
| SEAT | 054121004 | Indirect Cross Interchange | 1 |
| QUINTON HAZELL | QCP3093 | Indirect Cross Interchange | 1 |
| AUDI | 78121004CX | Indirect Cross Interchange | 1 |
| GGT | PA10662 | Indirect Cross Interchange | 1 |
| AUDI | 78121004CV | Indirect Cross Interchange | 1 |
| TOPRAN | 101032 | Indirect Cross Interchange | 1 |
| AUDI | 78121004C | Indirect Cross Interchange | 1 |
| Saleri SIL | PA664P | Indirect Cross Interchange | 1 |
| AUDI | 78121004BX | Indirect Cross Interchange | 1 |
| KWP | 10591 | Indirect Cross Interchange | 1 |
| AUDI | 78121004BV | Indirect Cross Interchange | 1 |
| AUDI | 78121004B | Indirect Cross Interchange | 1 |
| AUDI | 78121004A | Indirect Cross Interchange | 1 |
| AUDI | 54121004AV | Indirect Cross Interchange | 1 |
| AUDI | 54121004A | Indirect Cross Interchange | 1 |
| AUDI | 54121004 | Indirect Cross Interchange | 1 |
| AUDI | 34121004B | Indirect Cross Interchange | 1 |
| AUDI | 054121004AX | Indirect Cross Interchange | 1 |
| AUDI | 054121004AV | Indirect Cross Interchange | 1 |
| AUDI | 054121004A | Indirect Cross Interchange | 1 |
| AUDI | 054121004 | Indirect Cross Interchange | 1 |
| AUDI | 034121004B | Indirect Cross Interchange | 1 |
| SKF | VKPC81612 | Indirect Cross Interchange | 1 |
| GRAF | PA591 | Indirect Cross Interchange | 1 |
| TRUCKTEC AUTOMOTIVE | 0719091 | Indirect Cross Interchange | 1 |
| DOLZ | A171 | Indirect Cross Interchange | 1 |
| HEPU | P535 | Indirect Cross Interchange | 1 |
| VW | 54121004A | Indirect Cross Interchange | 1 |
| AIRTEX | 9279 | Indirect Cross Interchange | 1 |