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Used GMC Sierra 2500 Diesel for Sale in Denver, CO

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Items 1 to 2 of 10.
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    Used 2025 GMC Sierra 2500 Denali Ultimate w/ LPO, GMC Protection Package
    86,186
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    Used 2023 GMC Sierra 2500 Denali w/ Denali Black Diamond Edition
    Used
    • Denali
    • 54K mi
    62,092
    Good Price
    Used 2025 GMC Sierra 2500 Denali Ultimate w/ LPO, GMC Protection Package
    Used
    • Denali Ultimate
    • 9K mi
    86,186
    Used 2024 GMC Sierra 2500 AT4X w/ AT4X AEV Edition
    Used
    • AT4X
    • 28K mi
    84,999
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    Based on 4.5% APR for mos.
    Used 2026 GMC Sierra 2500 Denali w/ Denali Reserve Package
    Used
    • Denali
    • 2K mi
    125,000
    Used 2010 GMC Sierra 2500 SLE w/ Suspension Package, Off-Road
    Used
    • SLE
    • 154K mi
    25,000
    New 2026 GMC Sierra 2500 Denali Ultimate
    • Denali Ultimate
    • 0 mi
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    Used 2016 GMC Sierra 2500 Denali w/ Duramax Plus Package
    Used
    • Denali
    • 72K mi
    46,500
    Item 1 of 4.
    Used
    • Denali
    • 72K mi
    57,098
    Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    74,999
    Great Price
    Used 2009 GMC Sierra 2500 SLE
    Used
    • SLE
    • 196K mi
    16,000
    Great Price
    Used 2023 GMC Sierra 2500 AT4 w/ AT4 Preferred Package
    64,199
    Great Price
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    Used 2021 GMC Sierra 2500 Denali w/ Denali Black Diamond Edition
    Used
    • Denali
    • 39K mi
    61,999
    Great Price
    Used 2022 GMC Sierra 2500 Denali
    Used
    • Denali
    • 104K mi
    49,999
    Great Price
    Certified 2026 GMC Sierra 2500 Denali
    • Denali
    • 13K mi
    74,698
    Great Price
    Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used
    • Denali
    • 67K mi
    57,299
    Good Price
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    Used 2019 GMC Sierra 2500 Denali w/ Duramax Plus Package
    Used
    • Denali
    • 145K mi
    36,499
    Great Price
    Used 2025 GMC Sierra 2500 Denali w/ Max Trailering Package
    Used
    • Denali
    • 13K mi
    75,897
    Used 2022 GMC Sierra 2500 Denali
    Used
    • Denali
    • 88K mi
    50,498
    Great Price
    Used 2018 GMC Sierra 2500 Denali w/ Duramax Plus Package
    • Denali
    • 95K mi
    47,830
    Used 2021 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used
    • Denali
    • 34K mi
    59,291
    Great Price
    Used 2020 GMC Sierra 2500 AT4 w/ AT4 Premium Package
    63,999
    Used 2024 GMC Sierra 2500 AT4X
    Used
    • AT4X
    • 14K mi
    83,736
    Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package
    Used
    • Denali
    • 24K mi
    75,021
    Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package
    Used
    • Denali
    • 30K mi
    70,699
    Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    69,499
    Good Price
    Certified 2025 GMC Sierra 2500 AT4X w/ AT4X AEV Edition
    • AT4X
    • 23K mi
    82,998
    Great Price
    Certified 2019 GMC Sierra 2500 SLT w/ Duramax Plus Package
    • SLT
    • 96K mi
    39,187
    Used 2025 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    75,793
    Good Price
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