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Used GMC Sierra 2500 for Sale in Darien, CT

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    Sponsored by Platinum Buick GMC of White Plains
    New 2026 GMC Sierra 2500 SLE w/ SLE Value Package;
    62,300
    MSRP$64,300
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    Used 2025 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    75,985
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    Great Price
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    Used 2025 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    75,985
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    Great Price
    Used 2024 GMC Sierra 2500 SLT w/ SLT Premium Package
    67,794
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    Great Price
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    Used 2018 GMC Sierra 2500 SLE w/ SLE Preferred Package
    33,700
    See payment
    Great Price
    Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used
    • Denali
    • 62K mi
    53,988
    See payment
    Great Price
    New 2025 GMC Sierra 2500 Denali
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    Used 2025 GMC Sierra 2500 AT4
    73,500
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    Great Price
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    Used 2025 GMC Sierra 2500 Denali Ultimate
    Used
    • Denali Ultimate
    • 78 mi
    88,000
    See payment
    Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    71,997
    See payment
    Great Price
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    Used 2025 GMC Sierra 2500 AT4X
    Used
    • AT4X
    • 30K mi
    78,000
    See payment
    Great Price
    Used 2024 GMC Sierra 2500 Denali Ultimate
    Used
    • Denali Ultimate
    • 46K mi
    69,637
    See payment
    Great Price
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    Used 2025 GMC Sierra 2500 Denali Ultimate
    Used
    • Denali Ultimate
    • 12K mi
    82,000
    See payment
    Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    62,670
    See payment
    Great Price
    Used 2025 GMC Sierra 2500 Denali Ultimate
    Used
    • Denali Ultimate
    • 18K mi
    84,500
    See payment
    Newly Listed
    Used 2024 GMC Sierra 2500 SLE w/ SLE Value Package;
    57,500
    See payment
    Great Price
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    Used 2023 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used
    • Denali
    • 28K mi
    56,511
    See payment
    Great Price
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    Used 2023 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used
    • Denali
    • 32K mi
    64,000
    See payment
    Great Price
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    Used 2013 GMC Sierra 2500 SLT w/ SLT Convenience Package
    34,995
    See payment
    Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used
    • Denali
    • 81K mi
    48,695
    See payment
    Great Price
    Price Drop
    Used 2025 GMC Sierra 2500 Denali Ultimate
    Used
    • Denali Ultimate
    • 15K mi
    82,000
    See payment
    Great Price
    Used 2018 GMC Sierra 2500 2WD Regular Cab
    Used
    • 2WD Regular Cab
    • 87K mi
    21,995
    See payment
    Good Price
    Used 2004 GMC Sierra 2500 SLE w/ Skid Plate Package
    Used
    • SLE
    • 213K mi
    9,995
    See payment
    Used 2023 GMC Sierra 2500 Denali w/ Denali Black Diamond Edition
    Used
    • Denali
    • 55K mi
    59,000
    See payment
    Great Price
    Used 2026 GMC Sierra 2500 Denali Ultimate
    Used
    • Denali Ultimate
    • 31 mi
    92,132
    See payment
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