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  • Exterior design of the GMC Sierra 3500 Denali HD.
    THE SIERRA FAMILY LINEUP
  • The 2017 Sierra 3500 Denali HD is equipped with an all-new 6.6L 445 horsepower Duramax Diesel engine.
    STANDARD TRAILER-SWAY-CONTROL TECHNOLOGY HELPS YOU TRAILER WITH CONFIDENCE
  • The available spray-in bed liner helps protect the Sierra 3500 Denali HD's cargo bed.
    A DURABLE SPRAY-IN BEDLINER PROTECTS YOUR TRUCK BED FROM SCRATCHES AND DENTS
  • The GMC Sierra 3500 Denali HD helps you secure cargo with four upper tie-downs.
    FOUR UPPER TIE-DOWNS MAKE IT EASIER TO SECURE CARGO
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THE SIERRA FAMILY LINEUP