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  • Exterior image of the 2018 GMC Sierra 2500 Denali HD premium heavy-duty truck.
    A durable spray-on liner helps protect your truck bed from scratches and dents
  • Exterior image of the 2018 GMC Sierra 2500 Denali HD premium heavy-duty truck.
    The Sierra HD family lineup
  • Exterior image of the 2018 GMC Sierra 2500 Denali HD premium heavy-duty truck.
    Four upper tie-downs make it easier to secure cargo
  • Exterior image of the 2018 GMC Sierra 2500 Denali HD premium heavy-duty truck.
    2018 Sierra 2500 Denali HD Duramax diesel.
  • Exterior image of the 2018 GMC Sierra 2500 Denali HD premium heavy-duty truck.
    2018 Sierra 2500 Denali HD 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.
    2018 Sierra 2500 Denali HD with our most powerful Duramax diesel ever.
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A durable spray-on liner helps protect your truck bed from scratches and dents