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Used GMC Sierra 1500 for Sale in Castle Rock, CO

80104
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Items 1 to 2 of 15.
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    Used 2021 GMC Sierra 1500 Denali w/ Denali Ultimate Package
    45,385
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    Used 2021 GMC Sierra 1500 AT4 w/ Technology Package
    • AT4
    • 67K mi
    38,998
    Used 2023 GMC Sierra 1500 Denali
    Used
    • Denali
    • 32K mi
    52,988
    Used 2014 GMC Sierra 1500 SLT w/ Suspension Package, Off-Road
    Used
    • SLT
    • 151K mi
    17,735
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    Based on 4.5% APR for mos.
    Used 2018 GMC Sierra 1500 Denali w/ Denali Ultimate Package
    Used
    • Denali
    • 88K mi
    32,950
    Used 2026 GMC Sierra 1500 AT4 w/ Technology Package
    65,989
    New 2026 GMC Sierra 1500 AT4X
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    Used 2021 GMC Sierra 1500 AT4 w/ Technology Package
    • AT4
    • 67K mi
    38,998
    Item 1 of 4.
    Used
    • Elevation
    • 63K mi
    44,084
    Used 2023 GMC Sierra 1500 AT4X
    Used
    • AT4X
    • 38K mi
    53,500
    Used 2026 GMC Sierra 1500 AT4X
    74,220
    Used 2023 GMC Sierra 1500 Denali Ultimate
    Used
    • Denali Ultimate
    • 28K mi
    60,542
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    Used 2019 GMC Sierra 1500 AT4 w/ AT4 Premium Package
    36,295
    Used 2025 GMC Sierra 1500 AT4X
    Used
    • AT4X
    • 14K mi
    69,118
    Used 2024 GMC Sierra 1500 Denali w/ Denali Reserve Package
    Used
    • Denali
    • 25K mi
    56,990
    Used 2018 GMC Sierra 1500 SLT
    28,000
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    Used 2022 GMC Sierra 1500 AT4 w/ AT4 Preferred Package
    51,799
    Used 2021 GMC Sierra 1500 AT4 w/ AT4 Preferred Package
    42,900
    Used 2026 GMC Sierra 1500 AT4X
    77,790
    Used 2025 GMC Sierra 1500 Elevation
    Used
    • Elevation
    • 12K mi
    44,860
    Used 2023 GMC Sierra 1500 Elevation w/ Elevation Premium Package
    Used
    • Elevation
    • 67K mi
    43,381
    Used 2024 GMC Sierra 1500 AT4 w/ Technology Package
    53,084
    Used 2017 GMC Sierra 1500 SLT
    Used
    • SLT
    • 100K mi
    26,500
    Used 2024 GMC Sierra 1500 Denali w/ Denali Reserve Package
    Used
    • Denali
    • 14K mi
    58,199
    Used 2009 GMC Sierra 1500 4x4 Crew Cab
    Used
    • 4x4 Crew Cab
    • 66K mi
    Hybrid
    16,997
    Used 2021 GMC Sierra 1500 AT4
    47,691
    Used 2015 GMC Sierra 1500 Denali
    Used
    • Denali
    • 77K mi
    28,793
    Used 2024 GMC Sierra 1500 Elevation w/ X31 Off-Road Package
    • Elevation
    • 17K mi
    49,499
    Used 2023 GMC Sierra 1500 Denali w/ Technology Package
    Used
    • Denali
    • 28K mi
    55,999

    GMC Sierra 1500 for Sale by Year

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