• 2016 Suburban 3500 ECM Engine Control Module 12668991, front view showing electrical connectors.
  • Programmed 2016 GMC Savana 3500 ECM Engine Control Module, part number 12668991, shown on a white background.
  • Front view of the 2016 Savana 2500 ECM Engine Control Module 12668991 showing the main electrical connector ports.
  • Engine Control Module ECM 12668991 for 2013-2016 Chevrolet Trax and other compatible GM vehicles.
  • Pre-programmed Engine Control Module ECM 12668991 for 2011-2015 Chevrolet Volt and other GM vehicles.
  • Engine Control Module ECM 12668991 for 2013-2016 Buick Encore, front view showing electrical connectors.
  • Programmed 2014-2016 Cadillac ELR Engine Control Module ECM 12668991, front view showing connectors.
  • Front view of the 2012-2016 Cruze Engine Control Module 12668991, showing the main electrical connector ports.
  • Engine Control Module ECM ECU 12668991 for 2014-2015 Chevrolet Spark and other compatible GM vehicles.
  • Programmed 2012-2016 Chevy Sonic ECM Engine Control Module 12668991, front view showing the main electrical connectors.
  • Programmed 2012-2016 Silverado 2500 ECM Engine Control Module 12668991, front view with connectors.
  • Programmed 2012-2016 Silverado 3500 ECM Engine Control Module 12668991, front view with connectors.
  • 2012-2016 Sierra 2500 ECM Engine Control Module 12668991, showing the main housing and electrical connection ports.
  • Programmed 2012-2016 Sierra 3500 ECM 12668991, front view with electrical connectors.
  • Pre-programmed Engine Control Module ECM 12668991 for 2012-2016 GMC Sierra 2500.
  • Front view of the 2012-2016 Sierra 3500 ECM Engine Control Module 12668991, highlighting the main electrical connector ports.
  • 2016 Express 2500 ECM Engine Control Module 12668991, front view showing the main electrical connectors.
  • Programmed 2016 Express 3500 ECM Engine Control Module, part number 12668991, ready for installation.
  • Front view of the 2016 Suburban 3500 ECM Engine Control Module 12668866 showing the main electrical connector ports.
  • Programmed 2016 Savana 3500 ECM Engine Control Module, part number 12668866.

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