• Engine Control Module ECM 12668866 for a 2016 GMC Savana 2500, showing the main unit and connectors.
  • Front view of a VIN-programmed 2013-2016 Trax ECM Engine Control Module, part number 12668866.
  • Programmed 2011-2015 Chevy Volt ECM Engine Control Module 12668866, front view.
  • Pre-programmed 12668866 Engine Control Module for 2013-2016 Buick Encore and other GM vehicles.
  • 2014-2016 Cadillac ELR Engine Control Module ECM 12668866, front view showing the main electrical connectors.
  • Front view of the 2014-2015 Spark ECM Engine Control Module 12668866, showing the main electrical connector ports.
  • Programmed 2012-2016 Sonic Engine Control Module ECM 12668866, front view showing connectors.
  • Pre-programmed Engine Control Module ECM 12668866 for 2012-2016 Chevy Silverado 2500.
  • 2012-2016 Silverado 3500 ECM Engine Control Module, part number 12668866, showing connectors.
  • Programmed 2012-2016 Sierra Denali 2500 ECM Engine Control Module 12668866, front view showing connectors.
  • Programmed Engine Control Module 12668866 for 2012-2016 GMC Sierra Denali 3500 and other GM vehicles.
  • Front view of the 2012-2016 Sierra 2500 ECM Engine Control Module with part number 12668866 visible.
  • Front view of the 2012-2016 Sierra 3500 ECM Engine Control Module with part number 12668866 visible.
  • 2016 Express 2500 Engine Control Module ECM ECU part number 12668866, front view with connectors.
  • Front view of a 2016 Express 3500 ECM Engine Control Module with part number 12668866 visible.
  • Front view of the 2016 Suburban 3500 ECM Engine Control Module 12663405, highlighting the main electrical connector ports.
  • 2016 Savana 3500 ECM Engine Control Module, part number 12663405, showing the main electrical connectors.
  • 2016 Savana 2500 ECM Engine Control Module part 12663405, showing the main housing and electrical connection ports.
  • 2013-2016 Chevy Trax Engine Control Module (ECM) 12663405, front view showing the main electrical connectors.
  • Front view of the 2011-2015 Volt ECM Engine Control Module, part number 12663405.

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