• A close-up of the pre-programmed 2011 Caprice ECM, showing the main connector ports and part number 12612384.
  • Programmed 2011 Sierra 3500 ECM, part number 12656958, ready for installation.
  • Programmed 12656958 Engine Computer for a 2011 GMC Sierra 2500 with 6.0L engine.
  • Programmed 12656958 Engine Control Module for a 2011 Sierra 3500 6.0L, showing the main connectors.
  • Programmed 2011 Sierra 2500 ECM, part number 12656958, ready for installation on a workbench.
  • Pre-programmed 2011 Silverado 3500 ECM, part number 12656958, ready for installation.
  • Pre-programmed 2011 Silverado 2500 ECM with part number 12656958, ready for installation.
  • Front view of the 2011 Cruze ECM 12642100 Engine Control Module with connectors visible.
  • Front view of the 2011 Sierra 3500 engine computer, part number 12642100, showing the main connectors.
  • Programmed 2011 Sierra 2500 ECM 12642100 engine computer module ready for installation.
  • VIN-Programmed 2011 Sierra Silverado 6.0L ECM 12642100, showing the main connectors and part number label.
  • Programmed 2011 Sierra 2500 6.0L ECM 12642100 with connectors visible.
  • A close-up of the 2011 Silverado 2500 6.0L ECM, part number 12642100, showing the connectors.
  • Programmed 2011 GM ECM 12616532 engine computer module with connectors visible, for Chevrolet Silverado and GMC Sierra.
  • Front view of a programmed 12616532 Engine Control Module (ECM) for a 2011 Sierra 3500 6.0L, showing the main electrical connectors.
  • Engine Control Module (ECM) for a 2011 Sierra 2500, part number 12616532, ready for installation.
  • Programmed 2011 Sierra 3500 6.0L ECM 12616532 with connectors visible, ready for installation.
  • Front view of the programmed 2011 Sierra 2500 ECM 12616532, showing the main connectors.
  • Front view of the 2011 Silverado 3500 ECM with part number 12616532, showing the main connectors.

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