Continental AG (Germany)
Hella GmbH & Co. KGaA (Germany) Dorman Products (US)
and Sensata Technologies Inc. (US)
Standard Motor Products Inc. (US) NGK Spark Plug CO. LTD (Japan)
BorgWarner Inc. (US)
Robert Bosch GmbH (Germany)
Delphi Technologies (UK)
Valeo (France)