Autotrader Logo
Skip to vehicle Listings

Used GMC Sierra 2500 for Sale in Boulder, CO

Filters (3)
Items 1 to 2 of 11.
    Sponsored by O'Meara GMC
    Hide
    360°
    Used 2025 GMC Sierra 2500 AT4
    67,588
    O'Meara GMC
    (720) 702-3361
    Call
    Dealer Logo
    64View Vehicles

    120 Matches

    Price Drop
    Used 2024 GMC Sierra 2500 Denali Ultimate w/ Max Trailering Package
    Used

    2024 GMC Sierra 2500

    • Denali Ultimate
    • 8K mi
    77,995
    Great Price
    Dealer Fees Included
    No Accidents
    Sponsored by Land Rover Denver
    • 32.85 mi. away
    Call
    Price Drop
    Used 2018 GMC Sierra 2500 SLE w/ HD SLE Preferred Plus Package
    Used

    2018 GMC Sierra 2500

    • SLE
    • 189K mi
    21,500
    Sponsored by NOCO TRUCK CENTER
    • 42.47 mi. away
    Call
    Used 2025 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    Used

    2025 GMC Sierra 2500

    • AT4
    • 66K mi
    61,981
    Great Price
    Dealer Fees Included
    No Accidents
    Sponsored by AutoNation Buick GMC Park Meadows
    • 37.69 mi. away
    Call
    My Wallet

    Find it Fast.

    Keep it Affordable.

    Credit Rating
    Trade-In Value
    Get My Kelley Blue Book® CarValue
    Get My Payoff Quote

    $

    Based on 4.5% APR for mos.
    Used 2022 GMC Sierra 2500 Denali w/ Technology Package
    Used

    2022 GMC Sierra 2500

    • Denali
    • 57K mi
    58,000
    Good Price
    No Accidents
    Private Seller Exchange
    • 4.31 mi. away
    • Buy Online. Clean title. No Hassle
    Price Drop
    Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package
    Used

    2024 GMC Sierra 2500

    • Denali
    • 23K mi
    67,716
    Great Price
    Dealer Fees Included
    No Accidents
    Mike Maroone Ford Longmont
    • 14.74 mi. away
    Call
    New 2026 GMC Sierra 2500 AT4X
    Consider Buying New

    2026 GMC Sierra 2500

    • AT4X
    • 4 mi
    90,925
    Castle Rock Chevrolet GMC
    • 51.03 mi. away
    Call
    Advertisement
    Price Drop
    Used 2024 GMC Sierra 2500 Denali w/ Technology Package
    Used

    2024 GMC Sierra 2500

    • Denali
    • 15K mi
    68,499
    Good Price
    Dealer Fees Included
    No Accidents
    AutoNation Buick GMC West
    • 20.98 mi. away
    Call
    Used 2022 GMC Sierra 2500 AT4 w/ AT4 Preferred Package
    Used

    2022 GMC Sierra 2500

    • AT4
    • 52K mi
    55,300
    Great Price
    Dealer Fees Included
    No Accidents
    Mike Maroone Ford Longmont
    • 14.74 mi. away
    Call
    Sponsored
    Price Drop
    Item 1 of 4.
    Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package
    Free delivery in Colorado!
    Used

    2024 GMC Sierra 2500

    • Denali
    • 23K mi
    67,716
    Great Price
    Dealer Fees Included
    No Accidents
    Call
    Price Drop
    360°
    Used 2017 GMC Sierra 2500 4x4 Regular Cab w/ Snow Plow Prep Package
    Used

    2017 GMC Sierra 2500

    • 4x4 Regular Cab
    • 78K mi
    25,697
    Dealer Fees Included
    No Accidents
    John Elway Chevrolet
    • 31.86 mi. away
    Call
    360°
    Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used

    2020 GMC Sierra 2500

    • Denali
    • 24K mi
    62,366
    Good Price
    Dealer Fees Included
    John Elway Chevrolet
    • 31.86 mi. away
    Call
    Price Drop
    Used 2024 GMC Sierra 2500 Denali Ultimate w/ Max Trailering Package
    Used

    2024 GMC Sierra 2500

    • Denali Ultimate
    • 8K mi
    77,995
    Great Price
    Dealer Fees Included
    No Accidents
    Land Rover Denver
    • 32.85 mi. away
    Call
    Advertisement
    Newly Listed
    Used 2024 GMC Sierra 2500 AT4X
    Used

    2024 GMC Sierra 2500

    • AT4X
    • 29K mi
    72,999
    Dealer Fees Included
    No Accidents
    AutoNation Buick GMC West
    • 20.98 mi. away
    Call
    Price Drop
    Used 2025 GMC Sierra 2500 AT4X w/ AT4X AEV Edition
    Used

    2025 GMC Sierra 2500

    • AT4X
    • 5K mi
    86,499
    Dealer Fees Included
    No Accidents
    AutoNation Buick GMC West
    • 20.98 mi. away
    Call
    Price Drop
    Used 2024 GMC Sierra 2500 AT4X
    Used

    2024 GMC Sierra 2500

    • AT4X
    • 19K mi
    74,998
    Great Price
    Dealer Fees Included
    No Accidents
    AutoNation Chrysler Dodge Jeep Ram Arapahoe
    • 36.93 mi. away
    Call
    Used 2011 GMC Sierra 2500 SLE w/ SLE Preferred Package
    Used

    2011 GMC Sierra 2500

    • SLE
    • 82K mi
    18,549
    Great Price
    Dealer Fees Included
    Golden Line Auto, LLC
    • 29.61 mi. away
    Call
    Advertisement
    Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    Used

    2024 GMC Sierra 2500

    • AT4
    • 5K mi
    72,000
    No Accidents
    Private Seller Exchange
    • 20 mi. away
    • Buy Online. Clean title. No Hassle
    Used 2026 GMC Sierra 2500 Denali w/ Denali Reserve Package
    Used

    2026 GMC Sierra 2500

    • Denali
    • 2K mi
    125,000
    No Accidents
    Private Seller Exchange
    • 21.35 mi. away
    • Buy Online. Clean title. No Hassle
    Used 2015 GMC Sierra 2500 Denali w/ Duramax Plus Package
    Used

    2015 GMC Sierra 2500

    • Denali
    • 148K mi Mileage Value
    32,998
    Good Price
    Dealer Fees Included
    No Accidents
    Phil Long Ford Denver
    • 28.74 mi. away
    Call
    Price Drop
    Used 2017 GMC Sierra 2500 Denali w/ Duramax Plus Package
    Used

    2017 GMC Sierra 2500

    • Denali
    • 121K mi
    41,150
    Good Price
    Dealer Fees Included
    AutoNation Chrysler Dodge Jeep Ram Southwest
    • 28.84 mi. away
    Call
    Newly Listed
    Used 2020 GMC Sierra 2500 AT4 w/ AT4 Premium Package
    Used

    2020 GMC Sierra 2500

    • AT4
    • 143K mi
    42,999
    Good Price
    Dealer Fees Included
    No Accidents
    AutoNation Buick GMC West
    • 20.98 mi. away
    Call
    Used 2011 GMC Sierra 2500 SLE w/ SLE Preferred Package
    Used

    2011 GMC Sierra 2500

    • SLE
    • 123K mi
    24,300
    No Accidents
    Private Seller Exchange
    • 30.72 mi. away
    • Buy Online. Clean title. No Hassle
    Price Drop
    Used 2021 GMC Sierra 2500 Denali w/ Denali Ultimate Package

    2021 GMC Sierra 2500

    • Denali
    • 73K mi
    54,479
    Great Price
    Dealer Fees Included
    No Accidents
    Ken Garff Ford Fort Collins
    • 36.38 mi. away
    Call
    Used 2024 GMC Sierra 2500 AT4 w/ AT4 Preferred Package
    Used

    2024 GMC Sierra 2500

    • AT4
    • 19K mi
    73,190
    Good Price
    Dealer Fees Included
    No Accidents
    Alpine Chevrolet
    • 31.63 mi. away
    Call
    Used 2021 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used

    2021 GMC Sierra 2500

    • Denali
    • 66K mi
    57,500
    Good Price
    Dealer Fees Included
    No Accidents
    Larry H Miller Chrysler Dodge Ram FIAT Denver
    • 33.11 mi. away
    Call
    Price Drop
    Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    Used

    2024 GMC Sierra 2500

    • AT4
    • 40K mi
    66,699
    Great Price
    Dealer Fees Included
    No Accidents
    AutoNation Buick GMC West
    • 20.98 mi. away
    Call
    Price Drop
    Used 2013 GMC Sierra 2500 SLT w/ SLT Convenience Package
    Used

    2013 GMC Sierra 2500

    • SLT
    • 163K mi
    21,719
    Great Price
    Dealer Fees Included
    No Accidents
    Groove Subaru
    • 31.92 mi. away
    Call
    Newly Listed
    Used 2024 GMC Sierra 2500 AT4 w/ AT4 Preferred Package
    Used

    2024 GMC Sierra 2500

    • AT4
    • 75K mi
    60,591
    Great Price
    Dealer Fees Included
    No Accidents
    ClearShift
    • 35.61 mi. away
    Call
    Price Drop
    Used 2025 GMC Sierra 2500 AT4X
    Used

    2025 GMC Sierra 2500

    • AT4X
    • 47K mi
    70,990
    Good Price
    Dealer Fees Included
    No Accidents
    AutoNation Buick GMC West
    • 20.98 mi. away
    Call
    Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    Used

    2024 GMC Sierra 2500

    • AT4
    • 27K mi
    70,790
    Good Price
    Dealer Fees Included
    No Accidents
    Alpine Chevrolet
    • 31.63 mi. away
    Call
    Advertisement

    GMC Sierra 2500 for Sale by Year

    Used GMC Sierra 2500 for Sale by Trim

    View All Trims
    <!--{"relevance":[true,{"relevanceVersion":"relevance-v5"}],"cypress_e2e":[false,{}],"cypressE2e":[false,{}]}-->