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  • Exterior image of the 2018 GMC Sierra 2500 Denali HD premium heavy-duty truck.
    2018 Sierra 2500HD’s projector headlamps with LED signature front lighting
  • Exterior image of the 2018 GMC Sierra 2500 Denali HD premium heavy-duty truck.
    2018 Sierra 2500HD with available Premium Trailering Mirrors
  • Exterior image of the 2018 GMC Sierra 2500 Denali HD premium heavy-duty truck.
    2018 Sierra 2500HD is the quietest idling Duramax diesel engine ever offered in a Sierra HD
  • Exterior image of the 2018 GMC Sierra 2500 Denali HD premium heavy-duty truck.
    The bold, striking 2018 Sierra 2500HD exterior design (shown with available equipment)
  • Exterior image of the 2018 GMC Sierra 2500 Denali HD premium heavy-duty truck.
    A CornerStep rear bumper is standard on the Sierra 2500HD (shown with available equipment)
  • Exterior image of the 2018 GMC Sierra 2500 Denali HD premium heavy-duty truck.
    2018 Sierra 2500HD All Terrain
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2018 Sierra 2500HD’s projector headlamps with LED signature front lighting