• A 2004 Hummer H2 PCM Engine Computer Module 12586242 being prepared for programming.
  • A 2004 Hummer H2 engine computer PCM with part number 12586242, shown on a clean white background.
  • A 2004 Hummer H2 PCM replacement module, part number 12586242, ready for VIN programming and installation.
  • Programmed 2004 Hummer H2 engine computer module, part number 12586242, ready for installation.
  • Front view of the Programmed 12586242 PCM for 2004 GM trucks and SUVs, showing the main connectors.
  • Front view of a 12586242 PCM for 2004 GM Sierra, Silverado, and Tahoe, showing the main connectors.
  • VIN Programmed 2004 Sierra 3500 PCM 12586242 Engine Computer Module
  • 2004 GMC Sierra 3500 engine computer module, part number 12586242.
  • Programmed 2004 Sierra 2500 PCM 12586242 Engine Computer, front view showing connectors.
  • Front view of the 2004 Sierra 2500 PCM 12586242 engine computer, showing the main connectors.
  • Front view of the 2004 Sierra 2500 PCM with part number 12586242, ready for VIN programming and installation.
  • A close-up of the 2004 Sierra 2500 PCM 12586242, showing the connectors and service label.
  • Programmed 2004 GMC Sierra 2500 PCM with service number 12586242 visible.
  • 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.

Search…

Search by Vehicle

Scroll to Top