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Used GMC Sierra 2500 for Sale in Longmont, CO

80501
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Items 1 to 2 of 11.
    Sponsored by O'Meara GMC
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    Newly Listed
    Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package
    69,988
    O'Meara GMC
    (720) 702-3361
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    59View Vehicles

    120 Matches

    Used 2019 GMC Sierra 2500 Denali w/ Duramax Plus Package
    Used

    2019 GMC Sierra 2500

    • Denali
    • 116K mi
    44,991
    Sponsored by ClearShift
    • 42.85 mi. away
    Call
    Used 2023 GMC Sierra 2500 AT4 w/ AT4 Preferred Package
    Used

    2023 GMC Sierra 2500

    • AT4
    • 45K mi
    59,640
    Dealer Fees Included
    No Accidents
    Sponsored by Christopher's Dodge Ram
    • 31.3 mi. away
    Call
    Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    Used

    2024 GMC Sierra 2500

    • AT4
    • 29K mi
    73,986
    Dealer Fees Included
    No Accidents
    Can be shipped to
    Sponsored by Alpine Buick GMC
    • 37.64 mi. away
    • Delivery
    Call
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    $

    Based on 4.5% APR for mos.
    Used 2026 GMC Sierra 2500 Denali Ultimate
    Used

    2026 GMC Sierra 2500

    • Denali Ultimate
    • 5K mi
    89,353
    Dealer Fees Included
    No Accidents
    Mike Maroone Ford Longmont
    • 1.64 mi. away
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    Price Drop
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    Used 2026 GMC Sierra 2500 Denali Ultimate
    Used

    2026 GMC Sierra 2500

    • Denali Ultimate
    • 4K mi
    89,463
    Dealer Fees Included
    No Accidents
    Brighton Ford
    • 20.61 mi. away
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    New 2026 GMC Sierra 2500 AT4X
    Consider New, Similar Payment

    2026 GMC Sierra 2500

    • AT4X
    • 3 mi
    91,698
    Castle Rock Chevrolet GMC
    • 58.13 mi. away
    Call
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    Price Drop
    Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used

    2020 GMC Sierra 2500

    • Denali
    • 84K mi
    48,698
    Dealer Fees Included
    No Accidents
    Mike Maroone Chevrolet GMC Longmont
    • 4.1 mi. away
    Call
    Sponsored
    Item 1 of 4.
    Used 2022 GMC Sierra 2500 SLT w/ SLT Convenience Package
    Used

    2022 GMC Sierra 2500

    • SLT
    • 95K mi
    41,569
    No Accidents
    Call
    Used 2010 GMC Sierra 2500 SLE w/ Suspension Package, Off-Road
    Used

    2010 GMC Sierra 2500

    • SLE
    • 154K mi
    25,000
    No Accidents
    Private Seller Exchange
    • 31.41 mi. away
    • Buy Online. Clean title. No Hassle
    Newly Listed
    360°
    Used 2018 GMC Sierra 2500 SLT w/ Duramax Plus Package
    Used

    2018 GMC Sierra 2500

    • SLT
    • 95K mi
    42,988
    No Accidents
    O'Meara GMC
    • 20.86 mi. away
    • Online Paperwork
    • Delivery
    Call
    Price Drop
    Used 2008 GMC Sierra 2500 SLT w/ Convenience Package
    Used

    2008 GMC Sierra 2500

    • SLT
    • 201K mi
    17,500
    No Accidents
    Private Seller Exchange
    • 40.26 mi. away
    • Buy Online. Clean title. No Hassle
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    Newly Listed
    Used 2023 GMC Sierra 2500 AT4 w/ AT4 Preferred Package
    Used

    2023 GMC Sierra 2500

    • AT4
    • 16K mi
    64,998
    Dealer Fees Included
    No Accidents
    AutoNation Chrysler Dodge Jeep Ram Southwest
    • 37.64 mi. away
    Call
    Certified 2023 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Certified

    2023 GMC Sierra 2500

    • Denali
    • 31K mi
    63,400
    Dealer Fees Included
    No Accidents
    Mike Maroone Cadillac
    • 12.68 mi. away
    Call
    Used 2016 GMC Sierra 2500 Denali w/ Duramax Plus Package
    Used

    2016 GMC Sierra 2500

    • Denali
    • 72K mi
    46,500
    No Accidents
    Private Seller Exchange
    • 25.86 mi. away
    • Buy Online. Clean title. No Hassle
    Price Drop
    Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used

    2020 GMC Sierra 2500

    • Denali
    • 43K mi
    55,990
    Dealer Fees Included
    No Accidents
    AutoNation Chrysler Jeep West
    • 31.34 mi. away
    Call
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    Newly Listed
    360°
    Used 2018 GMC Sierra 2500 Denali w/ Duramax Plus Package

    2018 GMC Sierra 2500

    • Denali
    • 95K mi
    49,829
    No Accidents
    Sill-TerHar Motors
    • 17.88 mi. away
    • Delivery
    Call
    Newly Listed
    Certified 2022 GMC Sierra 2500 Denali
    Certified

    2022 GMC Sierra 2500

    • Denali
    • 832 mi
    69,988
    Dealer Fees Included
    No Accidents
    JOHNSON AUTO PLAZA
    • 21.45 mi. away
    • Delivery
    Call
    Price Drop
    Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    Used

    2024 GMC Sierra 2500

    • AT4
    • 45K mi
    68,950
    No Accidents
    Fowler Honda of Longmont
    • 1.74 mi. away
    Call
    Certified 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

    2024 GMC Sierra 2500

    • AT4
    • 44K mi
    67,698
    Dealer Fees Included
    Mike Maroone Chevrolet GMC Longmont
    • 4.1 mi. away
    Call
    Newly Listed
    Used 2019 GMC Sierra 2500 Denali w/ Duramax Plus Package
    Used

    2019 GMC Sierra 2500

    • Denali
    • 84K mi
    49,000
    Dealer Fees Included
    No Accidents
    Weld County Garage
    • 23.81 mi. away
    • Online Paperwork
    Call
    Used 2012 GMC Sierra 2500 Denali w/ Suspension Package, Off-Road
    Used

    2012 GMC Sierra 2500

    • Denali
    • 264K mi
    17,860
    No Accidents
    Private Seller Exchange
    • 18.59 mi. away
    • Buy Online. Clean title. No Hassle
    360°
    Used 2025 GMC Sierra 2500 Denali w/ Denali Reserve Package

    2025 GMC Sierra 2500

    • Denali
    • 13K mi
    66,999
    No Accidents
    Phil Long Ford Denver
    • 37.51 mi. away
    Call
    Used 2024 GMC Sierra 2500 Denali w/ Technology Package
    Used

    2024 GMC Sierra 2500

    • Denali
    • 24K mi
    71,405
    No Accidents
    ClearShift
    • 16.16 mi. away
    Call
    Used 2026 GMC Sierra 2500 AT4 w/ AT4 Preferred Package
    Used

    2026 GMC Sierra 2500

    • AT4
    • 7K mi
    77,497
    Dealer Fees Included
    No Accidents
    Weld County Garage
    • 23.81 mi. away
    • Online Paperwork
    Call
    Used 2026 GMC Sierra 2500 Denali Ultimate w/ Max Trailering Package
    Used

    2026 GMC Sierra 2500

    • Denali Ultimate
    • 8K mi
    88,064
    Dealer Fees Included
    No Accidents
    Weld County Garage
    • 23.81 mi. away
    • Online Paperwork
    Call
    Used 2019 GMC Sierra 2500 4x4 Double Cab w/ Sierra Convenience Package
    Used

    2019 GMC Sierra 2500

    • 4x4 Double Cab
    • 42K mi
    32,298
    Dealer Fees Included
    AutoNation USA Denver Broadway
    • 39.23 mi. away
    Call
    Used 2020 GMC Sierra 2500 AT4 w/ AT4 Premium Package
    Used

    2020 GMC Sierra 2500

    • AT4
    • 33K mi
    63,999
    Dealer Fees Included
    AutoNation Toyota Arapahoe
    • 42.2 mi. away
    Call
    Newly Listed
    Used 2024 GMC Sierra 2500 AT4X
    Used

    2024 GMC Sierra 2500

    • AT4X
    • 25K mi
    79,991
    No Accidents
    ClearShift
    • 42.85 mi. away
    Call
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