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Used 2026 GMC Sierra 3500 for Sale in Westminster, CO

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Items 1 to 2 of 8.
    Sponsored by Red Rock GMC
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    Used 2024 GMC Sierra 3500 Denali w/ Denali Reserve Package
    71,787
    Good Price
    Dealer Fees Included
    Similar Match
    Red Rock GMC
    1 (855) 646-2294
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    59View Vehicles

    8 Matches

    Certified 2026 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

    2026 GMC Sierra 3500

    • AT4
    • 12K mi
    75,298
    Great Price
    Dealer Fees Included
    No Accidents
    Sponsored by Castle Rock Chevrolet GMC
    • 33.97 mi. away
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    Used 2026 GMC Sierra 3500 SLE w/ SLE Value Package
    Used

    2026 GMC Sierra 3500

    • SLE
    • 15K mi
    80,000
    No Accidents
    Sponsored by Ghent Chevrolet Cadillac
    • 42.12 mi. away
    Call
    Price Drop
    Used 2026 GMC Sierra 3500 SLT w/ SLT Premium Package
    Used

    2026 GMC Sierra 3500

    • SLT
    • 400 mi
    73,593
    Dealer Fees Included
    No Accidents
    Sponsored by Transwest GMC
    • 7.92 mi. away
    Call
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    Based on 4.5% APR for mos.
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    Used 2026 GMC Sierra 3500 SLT w/ SLT Premium Package
    Used

    2026 GMC Sierra 3500

    • SLT
    • 400 mi
    73,593
    Dealer Fees Included
    No Accidents
    Transwest GMC
    • 7.92 mi. away
    Call
    Certified 2026 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package

    2026 GMC Sierra 3500

    • AT4
    • 12K mi
    75,298
    Great Price
    Dealer Fees Included
    No Accidents
    Castle Rock Chevrolet GMC
    • 33.97 mi. away
    Call
    Used 2026 GMC Sierra 3500 Denali
    Used

    2026 GMC Sierra 3500

    • Denali
    • 5K mi
    82,197
    Dealer Fees Included
    No Accidents
    Castle Rock Chevrolet GMC
    • 33.97 mi. away
    Call
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    Price Drop
    Used 2026 GMC Sierra 3500 Denali Ultimate
    Used

    2026 GMC Sierra 3500

    • Denali Ultimate
    • 16K mi
    84,592
    Dealer Fees Included
    No Accidents
    ClearShift
    • 18.6 mi. away
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    Certified 2026 GMC Sierra 3500 SLE w/ SLE Convenience Package

    2026 GMC Sierra 3500

    • SLE
    • 366 mi
    68,797
    Dealer Fees Included
    No Accidents
    Castle Rock Chevrolet GMC
    • 33.97 mi. away
    Call
    Used 2026 GMC Sierra 3500 4x4 Crew Cab AT4
    Used

    2026 GMC Sierra 3500

    • 4x4 Crew Cab AT4
    • 7K mi
    81,121
    No Accidents
    Transwest Truck Trailer RV
    • 14.49 mi. away
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    Used 2026 GMC Sierra 3500 SLE w/ SLE Value Package
    Used

    2026 GMC Sierra 3500

    • SLE
    • 15K mi
    80,000
    No Accidents
    Ghent Chevrolet Cadillac
    • 42.12 mi. away
    Call
    Price Drop
    Used 2026 GMC Sierra 3500 Denali Ultimate
    Used

    2026 GMC Sierra 3500

    • Denali Ultimate
    • 686 mi
    89,697
    Dealer Fees Included
    No Accidents
    Castle Rock Chevrolet GMC
    • 33.97 mi. away
    Call
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