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Used GMC Sierra 3500 for Sale in Westminster, CO

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Items 1 to 2 of 12.
    Sponsored by Red Rock GMC
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    Used 2019 GMC Sierra 3500 Denali
    40,701
    Dealer Fees Included
    Red Rock GMC
    1 (855) 646-2294
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    58View Vehicles

    55 Matches

    Certified 2024 GMC Sierra 3500 Denali w/ Denali Reserve Package

    2024 GMC Sierra 3500

    • Denali
    • 37K mi
    70,399
    Great Price
    Dealer Fees Included
    No Accidents
    Sponsored by Castle Rock Chevrolet GMC
    • 33.97 mi. away
    Call
    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
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    Used 2025 GMC Sierra 3500 Denali Ultimate
    Used

    2025 GMC Sierra 3500

    • Denali Ultimate
    • 33K mi
    81,677
    Great Price
    Dealer Fees Included
    No Accidents
    Sponsored by Dellenbach Motors
    • 49.41 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
    Used 2007 GMC Sierra 3500 SLT w/ Convenience Package
    Used

    2007 GMC Sierra 3500

    • SLT
    • 227K mi
    16,500
    No Accidents
    Private Seller Exchange
    • 6.03 mi. away
    • Buy Online. Clean title. No Hassle
    New 2026 GMC Sierra 3500 Denali Ultimate w/ LPO, Black Badging Package
    Consider Buying New

    2026 GMC Sierra 3500

    • Denali Ultimate
    • 4 mi
    106,294
    Castle Rock Chevrolet GMC
    • 33.97 mi. away
    Call
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    Used 2022 GMC Sierra 3500 Denali w/ Denali Ultimate Package
    Used

    2022 GMC Sierra 3500

    • Denali
    • 38K mi
    62,590
    Great Price
    Dealer Fees Included
    No Accidents
    ClearShift
    • 18.6 mi. away
    Call
    Sponsored
    Item 1 of 4.
    Used 2021 GMC Sierra 3500 Denali w/ Denali Ultimate Package
    Used

    2021 GMC Sierra 3500

    • Denali
    • 40K mi
    63,190
    Great Price
    Dealer Fees Included
    No Accidents
    Call
    Used 2021 GMC Sierra 3500 Denali w/ Denali Ultimate Package
    Used

    2021 GMC Sierra 3500

    • Denali
    • 40K mi
    63,190
    Great Price
    Dealer Fees Included
    No Accidents
    ClearShift
    • 18.6 mi. away
    Call
    Used 2023 GMC Sierra 3500 Denali w/ Denali Black Diamond Edition
    Used

    2023 GMC Sierra 3500

    • Denali
    • 26K mi
    65,590
    Great Price
    Dealer Fees Included
    No Accidents
    ClearShift
    • 18.6 mi. away
    Call
    Used 2015 GMC Sierra 3500 Denali w/ Duramax Plus Package
    Used

    2015 GMC Sierra 3500

    • Denali
    • 116K mi
    40,611
    Dealer Fees Included
    No Accidents
    Alpine Nissan
    • 3.92 mi. away
    Call
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    Used 2024 GMC Sierra 3500 Denali Ultimate
    Used

    2024 GMC Sierra 3500

    • Denali Ultimate
    • 13K mi
    80,592
    Good Price
    Dealer Fees Included
    No Accidents
    ClearShift
    • 18.6 mi. away
    Call
    Price Drop
    Certified 2020 GMC Sierra 3500 Denali w/ Denali Ultimate Package

    2020 GMC Sierra 3500

    • Denali
    • 59K mi
    54,539
    Great Price
    Dealer Fees Included
    No Accidents
    Mike Maroone Chevrolet GMC Longmont
    • 22.78 mi. away
    Call
    Used 2014 GMC Sierra 3500 Denali
    Used

    2014 GMC Sierra 3500

    • Denali
    • 163K mi
    35,487
    Dealer Fees Included
    Family Trucks and Vans
    • 11.16 mi. away
    Call
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    Used 2020 GMC Sierra 3500 SLE
    Used

    2020 GMC Sierra 3500

    • SLE
    • 69K mi
    39,592
    Dealer Fees Included
    No Accidents
    ClearShift
    • 18.6 mi. away
    Call
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    Used 2023 GMC Sierra 3500 Denali w/ Denali Ultimate Package
    Used

    2023 GMC Sierra 3500

    • Denali
    • 98K mi
    49,967
    Great Price
    Dealer Fees Included
    No Accidents
    Christopher's Dodge Ram
    • 10.67 mi. away
    Call
    Certified 2020 GMC Sierra 3500 Denali w/ Denali Ultimate Package

    2020 GMC Sierra 3500

    • Denali
    • 55K mi
    51,597
    Great Price
    Dealer Fees Included
    No Accidents
    Castle Rock Chevrolet GMC
    • 33.97 mi. away
    Call
    Used 2013 GMC Sierra 3500 SLE w/ SLE Preferred Package
    Used

    2013 GMC Sierra 3500

    • SLE
    • 134K mi
    19,348
    Skyline Mitsubishi
    • 4.03 mi. away
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    Used 2022 GMC Sierra 3500 Denali w/ Denali Ultimate Package
    Used

    2022 GMC Sierra 3500

    • Denali
    • 33K mi
    63,329
    No Accidents
    O'Meara GMC
    • 3.99 mi. away
    • Online Paperwork
    • Delivery
    Call
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    Certified 2025 GMC Sierra 3500 AT4 w/ Technology Package

    2025 GMC Sierra 3500

    • AT4
    • 7K mi
    75,097
    Dealer Fees Included
    No Accidents
    Castle Rock Chevrolet GMC
    • 33.97 mi. away
    Call
    Newly Listed
    Used 2024 GMC Sierra 3500 Denali w/ Denali Reserve Package
    Used

    2024 GMC Sierra 3500

    • Denali
    • 66K mi
    65,990
    No Accidents
    O'Meara Ford
    • 4.49 mi. away
    Call
    Used 2023 GMC Sierra 3500 Pro w/ Convenience Package
    Used

    2023 GMC Sierra 3500

    • Pro
    • 102K mi
    42,590
    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
    Price Drop
    Used 2023 GMC Sierra 3500 Pro w/ Gooseneck/5TH Wheel Package
    Used

    2023 GMC Sierra 3500

    • Pro
    • 66K mi
    45,000
    No Accidents
    Private Seller Exchange
    • 24.63 mi. away
    • Buy Online. Clean title. No Hassle
    Used 2024 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package
    Used

    2024 GMC Sierra 3500

    • AT4
    • 44K mi
    67,590
    Great Price
    Dealer Fees Included
    No Accidents
    ClearShift
    • 18.6 mi. away
    Call
    Used 2025 GMC Sierra 3500 AT4 w/ AT4 Premium Plus Package
    Used

    2025 GMC Sierra 3500

    • AT4
    • 28K mi
    69,894
    Great Price
    Dealer Fees Included
    No Accidents
    ClearShift
    • 18.6 mi. away
    Call
    Used 2024 GMC Sierra 3500 Denali Ultimate
    Used

    2024 GMC Sierra 3500

    • Denali Ultimate
    • 47K mi
    72,590
    Great Price
    Dealer Fees Included
    No Accidents
    ClearShift
    • 18.6 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
    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
    Call
    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
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    GMC Sierra 3500 for Sale by Year

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