| DELPHI | ALLIED SIGNAL | EBERSPACHER | ERLING KLINGER |
| SIEMENS | DAMPERS | HUTCHINGSON | SAGEM |
| FAURECIA | DANA - PCE | MEILLOR | MAGNETI MARELLI |
| GARRET | BOSCH | BALEO | LUCAS DIESEL |
| CASE-NEW HOLLAND | CATERPILLAR | DHI | IVECO |
| JOHN DEER | MACK TRUCK | RENAULT V.I. |
| BOMBADIER-ROTAX | CATERPILLAR | CUMMINS | MTU |
| PERKINS | STIHL | VM-DDC |
| ASIATECH FR | ASIATECH UK | COSWORTH | FERRARI |
| PEUGEOT SPORT | RENAULT SPORT | ROUSH RACING |
