• Front view of a 2004 Hummer H2 PCM Powertrain Control Module with part number 12586242, showing the main electrical connector ports.
  • 2004 Hummer H2 PCM Powertrain Control Module with part number 12586242 visible on the label, showing the main electrical connectors.
  • 2004 Sierra 3500 Engine Control Module YFKH Programmed To Your VIN
  • 2004 Sierra 3500 PCM Powertrain Control Module 12586242, showing the three main electrical connector ports.
  • Front view of the 2004 Sierra 3500 PCM Engine Computer 12586242, showing the main electrical connectors.
  • Programmed 2004 Sierra 3500 PCM ECM part number 12586242.
  • 2004 GMC Sierra 3500 PCM Powertrain Control Module with service number 12586242 shown.
  • Programmed 2004 GMC Sierra 2500 PCM Engine Computer Module 12586242
  • Front view of a 2004 Sierra 2500 PCM Powertrain Control Module with service number 12586242, showing the main electrical connector ports.
  • 2004 GMC Sierra 2500 PCM Engine Computer Module 12586242 with connectors visible.
  • Programmed 2004 GMC Sierra 2500 PCM 12586242 Engine Computer Module, front view showing connectors.
  • Front view of a 2004 Sierra 2500 PCM with part number 12586242, showing the main electrical connector ports.
  • 2004 GMC Sierra 2500 PCM Powertrain Control Module 12586242, front view showing electrical connectors.
  • Programmed 2004 Sierra 2500 PCM 12586242 Engine Computer Module, front view with connectors.
  • 2004 Sierra 2500 PCM Engine Computer 12586242, front view showing the three main electrical connector ports.
  • Programmed 2004 Sierra 2500 PCM Engine Computer Module 12586242, front view with connectors.
  • 2004 GMC Sierra 2500 PCM Powertrain Control Module with part number 12586242 visible.
  • Programmed 2004 Sierra 2500 PCM Engine Computer Module 12586242 for GM trucks and SUVs.
  • 2004 Silverado 2500 PCM Engine Computer 12586242 with connectors visible.
  • 2004 Silverado 2500 PCM Engine Computer 12586242, showing the main module and three large connection ports.

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