Standard Motor Products, Inc.New York, United States
Diamond Electric Mfg. Co., Ltd.
AET SRL
Marshall Electric Corp.Indiana, United States
Federal-Mogul Powertrain LLC
BorgWarner Ludwigsburg GmbH
Changchun Visteon FAWAY Automotive Electronics Co., Ltd.
ACCEL Performance Group LLCOhio, United States
Marsilli SpALombardia, Italy
Eldor Corp SpALombardia, Italy
NGK SPARK PLUG CO., LTD.Aichi-ken, Japan
Prestolite Electric LLCMichigan, United States