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  • Front view of the 2004 Sierra 3500 ECM, part number 12586242, showing the main electrical connectors.
    $119.95

    2004 Sierra 3500 ECM | Pre-Programmed Engine Computer | Part #12586242

  • A pre-programmed 2004 Sierra 3500 PCM, part number 12586242, ready for installation.
    $119.95

    2004 Sierra 3500 PCM 12586242 | Programmed to Your VIN

  • Programmed 2004 GMC Sierra 2500 PCM Engine Computer Module 12586242
    $119.95

    2004 Sierra 2500 Engine Control Module 12586242 Programmed To Your VIN

  • Front view of a 2004 Sierra 2500 PCM Powertrain Control Module with service number 12586242, showing the main electrical connector ports.
    $119.95

    2004 Sierra 2500 Engine Control Module YHTN Programmed To Your VIN

  • Pre-programmed 2004 Sierra 2500 PCM, part number 12586242, ready for installation.
    $119.95

    2004 Sierra 2500 PCM 12586242 | Pre-Programmed to Your VIN

  • Programmed 2004 Sierra 2500 PCM with service number 12586242, ready for installation.
    $119.95

    Programmed 2004 Sierra 2500 PCM 12586242 | VIN-Matched for Easy Install

  • A pre-programmed 2004 Sierra 2500 PCM, part number 12586242, ready for installation.
    $119.95

    2004 Sierra 2500 PCM 12586242 | Programmed to Your VIN

  • Pre-programmed 2004 Sierra 2500 PCM, part number 12586242, ready for installation.
    $119.95

    Programmed 2004 Sierra 2500 PCM 12586242 | Plug & Drive

  • A VIN-programmed 2004 Sierra 2500 PCM, part number 12586242, ready for installation.
    $119.95

    Programmed 2004 Sierra 2500 PCM 12586242 | Restore Engine Performance

  • 2004 Sierra 2500 PCM 12586242, pre-programmed and ready for installation.
    $119.95

    Programmed 2004 Sierra 2500 PCM | 12586242 | Plug & Drive Solution

  • Programmed 2004 Sierra 2500 PCM Engine Computer Module 12586242, front view with connectors.
    $119.95

    2004 Sierra 2500 Engine Control Module YFKH Programmed To Your VIN

  • Programmed 2004 Sierra 2500 PCM, part number 12586242, showing the main connectors and housing.
    $119.95

    Programmed 2004 Sierra 2500 PCM 12586242 | Flashed to Your VIN

  • Programmed 2004 Sierra 2500 PCM part number 12586242, ready for installation.
    $119.95

    Programmed 2004 Sierra 2500 PCM | 12586242 | Plug & Drive

  • Programmed 2004 Silverado 2500 PCM with service number 12586242 shown on a white background.
    $119.95

    Programmed 2004 Silverado 2500 PCM 12586242 | VIN Matched & Ready to Install

  • A close-up of the 2004 Silverado 2500 PCM, part number 12586242, showing the main connectors for installation.
    $119.95

    Programmed 2004 Silverado 2500 PCM 12586242 | Plug & Drive Ready

  • A VIN-programmed 2004 Silverado 2500 PCM, part number 12586242, ready for installation.
    $119.95

    Programmed 12586242 PCM for 2004 Silverado 2500 | VIN-Matched & Ready to Install

  • Programmed 2004 Silverado 2500 PCM 12586242 installed in the engine bay.
    $119.95

    Programmed 2004 Silverado 2500 PCM 12586242 | VIN Matched & Ready

  • A pre-programmed 2004 GM Truck ECM, part number 12586242, ready for installation in a Silverado or Sierra.
    $119.95

    Programmed 2004 GM Truck ECM 12586242 | VIN-Matched for Easy Installation

  • Programmed 2004 Silverado 2500 PCM, part number 12586242, ready for installation.
    $119.95

    2004 Silverado 2500 PCM 12586242 | VIN Programmed for Easy Install

  • A pre-programmed 2004 Silverado PCM, part number 12586242, ready for installation in a GM truck.
    $119.95

    2004 Silverado PCM 12586242 | Pre-Programmed to Your VIN for Easy Install

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