• Front view of the 2004 Sierra 1500 PCM 12586242, showing the main electrical connector ports.
  • 2004 Sierra 1500 PCM Engine Computer 12586242, showing the main connectors and identification label.
  • Front view of the 2004 Sierra 1500 PCM Engine Computer, part number 12586242, showing the main electrical connector ports.
  • 2004 GMC Sierra 1500 PCM Engine Computer 12586242 showing the three main connector ports and the identification label.
  • Front view of a 2004 Sierra 1500 PCM with three distinct electrical connector ports, part number 12586242.
  • 2004 Chevrolet Avalanche 1500 PCM Powertrain Control Module, part number 12586242, showing the main electrical connectors.
  • Programmed 2004 Avalanche 1500 PCM with service number 12586242.
  • 2004 Chevrolet Avalanche 1500 PCM Engine Computer Module 12586242
  • 2004 Chevrolet Avalanche 1500 PCM Engine Computer Module 12586242
  • Programmed 2004 Avalanche 1500 PCM Engine Computer module, part number 12586242, showing the main connectors.
  • 2004 Avalanche 1500 PCM Engine Computer 12586242 showing the main connectors and part number label.
  • 2004 Chevrolet Avalanche 1500 PCM Engine Computer 12586242 with connectors visible.
  • 2004 Chevrolet Avalanche 1500 PCM Engine Computer Module 12586242
  • 2004 Silverado 3500 Engine Control Module 12586242 Programmed To Your VIN
  • 2004 Escalade Esv Engine Control Module YHTN Programmed To Your VIN
  • 2004 Silverado 3500 PCM Engine Computer 12586242, front view showing the three main electrical connectors.
  • Front view of a 2004 Silverado 3500 PCM Engine Computer with part number 12586242, showing the main electrical connector ports.
  • 2004 Silverado 3500 PCM Engine Control Module 12586242
  • 2004 Silverado 3500 PCM 12586242 Engine Control Module with its three main electrical connectors visible.
  • 2004 Silverado 3500 PCM Engine Computer Module 12586242, front view showing wiring harness connectors.

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