• Programmed 12668866 ECM for GM vehicles like Silverado, Cruze, and Express Van, showing the main connectors.
  • Front view of the 2016 Savana 3500 ECM 12668866 showing the main electrical connectors.
  • Programmed 2016 Savana 2500 Engine Control Module ECM 12668866, front view showing connectors.
  • Programmed 12668866 Engine Control Module for Chevrolet, GMC, Buick, and Cadillac vehicles, showing the main connectors.
  • Programmed 12668866 ECM for 2011-2015 Chevy Volt and other GM vehicles, showing connectors.
  • Programmed 12668866 ECM for GM vehicles like the Buick Encore and Chevy Cruze, showing the main connectors.
  • Side view of the 12668866 Engine Control Module for GM vehicles, showing the main electrical connectors.
  • A Programmed 12668866 ECM with its connectors visible, ready for installation in a GM vehicle.
  • Programmed 12668866 Engine Control Module with connectors visible, ready for installation.
  • Front view of the 12668866 ECM, showing the main connectors for a 2012-2016 Silverado 2500 and other GM vehicles.
  • Programmed Engine Control Module ECM for 2012-2016 Silverado 3500, part number 12668866.
  • Programmed 12668866 ECM with connectors visible, ready for installation in a GM vehicle.
  • Front view of the GM 12668866 Engine Control Module with its electrical connection ports visible.
  • Programmed 12668866 engine control module with connectors visible, ready for installation in a GM vehicle.
  • Programmed 12668866 ECM for a 2012-2016 GMC Sierra 3500, showing the main connectors.
  • Programmed 12668866 Engine Control Module with connectors visible, for 2016 Chevy Express 2500.
  • Front view of a programmed 12668866 ECM with connectors visible, ready for installation in a GM vehicle.
  • Programmed 12663405 Engine Control Module with connectors visible, ready for installation in a GM vehicle.
  • Programmed 2016 Savana 3500 ECM 12663405 Engine Control Module ready for installation.
  • A programmed 12663405 engine control module for a 2016 GMC Savana 2500, shown on a clean white background.

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