BorgWarner Inc. (US)
Hitachi Automotive Systems
Ltd (Japan)
Standard Motor Products Inc. (US)
Valeo (France)
ACDelco (US)
Beru (Germany)
and Spectra Premium (Canada)
NGK SPARK PLUG CO. LTD (Japan)
Wells Vehicle Electronics (US)
Denso Corporation (Japan)
Delphi Technologies (UK)
Robert Bosch GmbH (Germany)