• 2004 Sierra 2500 PCM 12586242 Engine Computer Module, front view with connectors.
  • Front view of the 2004 GMC Sierra 2500 PCM with part number 12586242 visible on the label.
  • Programmed 2004 Sierra 2500 PCM 12586242, front view showing connectors.
  • A side view of the 12586242 PCM for 2004 GM trucks and SUVs, showing the connection pins.
  • Front view of the 2004 GM PCM 12586242, showing the connectors for a Sierra, Silverado, or Tahoe.
  • 2004 Sierra 2500 PCM 12586242 Engine Computer ECM ECU programmed to VIN.
  • Programmed 2004 Silverado 2500 PCM with service number 12586242, showing connectors.
  • Programmed 2004 Silverado 2500 PCM with service number 12586242 shown on a white background.
  • Front view of the 2004 Silverado 2500 PCM, service number 12586242, showing the main electrical connectors.
  • Front view of the 2004 Silverado 2500 PCM with service number 12586242, showing the main electrical connectors.
  • Front view of the 2004 Silverado 2500 PCM 12586242 with its three main electrical connectors visible.
  • Programmed 12586242 PCM for a 2004 Chevrolet Silverado 2500, showing the main electrical connectors and service number label.
  • Front view of a programmed 2004 Silverado 2500 PCM 12586242 with connectors visible.
  • Pre-programmed 2004 Silverado 2500 PCM Engine Computer module, part number 12586242, ready for installation.
  • A replacement 2004 Silverado 1500 PCM, part number 12586242, ready for programming and installation.
  • Programmed 2004 Silverado 1500 PCM with service number 12586242, ready for installation.
  • Front view of a programmed 2004 Silverado 1500 PCM with part number 12586242 visible on the label.
  • Programmed 2004 Silverado 1500 PCM, service number 12586242, ready for installation.
  • Programmed 2004 Silverado 1500 PCM with service number 12586242 shown on a white background.
  • Programmed 2004 Silverado 1500 PCM with part number 12586242, ready for installation.

Search…

Search by Vehicle

Scroll to Top