• 2004 Silverado 2500 PCM Engine Computer Module 12586242, showing the main case and electrical connection ports.
  • 2004 Silverado 2500 PCM 12586242 Engine Computer Module with connectors visible.
  • Front view of a 2004 Silverado 2500 PCM engine computer module with part number 12586242.
  • A 2004 Silverado 2500 PCM with part number 12586242 shown on a white background.
  • Programmed 2004 Silverado 2500 PCM ECM ECU module part number 12586242.
  • 2004 Silverado 2500 PCM Engine Computer Module 12586242 with connectors visible.
  • Front view of the 2004 Silverado 1500 PCM ECM Engine Computer 12586242, showing the main electrical connector ports.
  • 2004 Silverado 1500 PCM 12586242 Engine Computer Module, front view showing connectors.
  • Front view of a 2004 Silverado 1500 PCM Engine Computer, part number 12586242, showing the main electrical connector ports.
  • 2004 Silverado PCM 12586242 Engine Control Module with main connector ports visible.
  • 2004 Silverado PCM 12586242 Engine Control Module (ECM) showing the main connectors.
  • 2004 Silverado 1500 PCM Engine Computer 12586242 with main connector ports visible.
  • Front view of a 2004 Silverado 1500 PCM Engine Computer, part number 12586242, showing the main electrical connectors.
  • Front view of the 2004 Silverado 1500 PCM with service number 12586242, showing the main electrical connectors.
  • 2004 Silverado 1500 PCM Engine Computer 12586242, front view showing connectors.
  • 2004 Silverado 1500 PCM Engine Computer 12586242, showing the main connectors and service label.
  • Front view of the 2004 Silverado 1500 PCM Engine Computer, part number 12586242, showing the main electrical connector ports.
  • Front view of a 2004 Silverado 1500 PCM Engine Control Module, part number 12586242, showing the main electrical connector ports.

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