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Used GMC Sierra 2500 for Sale in Longmont, CO

80501
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Purchase Online(3)
GMC Certified Pre-Owned(1)
2014 and newer(116)
Black(25)
Red(10)
2009 and older(8)
AWD/4WD(125)
Blue(6)
    Sponsored by O'Meara GMC
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    Used 2026 GMC Sierra 2500 SLT
    74,888
    See estimated payment
    O'Meara GMC
    (720) 792-7319
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    81View Vehicles

    126 Matches

    Price Drop
    Used 2020 GMC Sierra 2500 AT4 w/ AT4 Premium Package
    Used

    2020 GMC Sierra 2500

    • AT4
    • 89K mi
    50,225
    See payment
    Great Price
    Sponsored by AutoNation Dodge Ram Broadway
    • 39.4 mi. away
    Call
    Used 2024 GMC Sierra 2500 Denali Ultimate
    Used

    2024 GMC Sierra 2500

    • Denali Ultimate
    • 36K mi
    74,498
    See payment
    Great Price
    No Accidents
    Sponsored by AutoNation Chrysler Dodge Jeep Ram Southwest
    • 37.64 mi. away
    Call
    Used 2019 GMC Sierra 2500 Denali w/ Duramax Plus Package
    Used

    2019 GMC Sierra 2500

    • Denali
    • 84K mi
    50,500
    See payment
    Good Price
    No Accidents
    Sponsored by AutoNation Chevrolet North
    • 24.86 mi. away
    Call
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    Used 2022 GMC Sierra 2500 SLT w/ Driver Alert Package I
    Used

    2022 GMC Sierra 2500

    • SLT
    • 23K mi
    53,998
    See payment
    Good Price
    No Accidents
    Mike Maroone Chevrolet GMC Longmont
    • 4.1 mi. away
    Call
    Price Drop
    Used 2024 GMC Sierra 2500 AT4X
    Used

    2024 GMC Sierra 2500

    • AT4X
    • 6K mi
    80,998
    See payment
    No Accidents
    Mike Maroone Chevrolet GMC Longmont
    • 4.1 mi. away
    Call
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    New 2026 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    Consider New, Similar Payment

    2026 GMC Sierra 2500

    • AT4
    • 4 mi
    92,344
    See details
    Castle Rock Chevrolet GMC
    • 58.13 mi. away
    Call
    Newly Listed
    Used 2017 GMC Sierra 2500 SLT w/ Duramax Plus Package
    Used

    2017 GMC Sierra 2500

    • SLT
    • 1K mi
    47,000
    See payment
    No Accidents
    Private Seller Exchange
    • 27.89 mi. away
    • Buy Online. Clean title. No Hassle

    How many passenger seats do you need in your truck?
    Price Drop
    Used 2022 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used

    2022 GMC Sierra 2500

    • Denali
    • 80K mi
    55,078
    See payment
    Great Price
    No Accidents
    Prestige Chrysler Dodge Jeep Inc
    • 1.67 mi. away
    Call
    Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    Used

    2024 GMC Sierra 2500

    • AT4
    • 44K mi
    70,998
    See payment
    Great Price
    No Accidents
    Mike Maroone Chevrolet GMC Longmont
    • 4.1 mi. away
    Call
    Price Drop
    Used 2015 GMC Sierra 2500 Denali w/ Duramax Plus Package
    Used

    2015 GMC Sierra 2500

    • Denali
    • 84K mi
    40,498
    See payment
    Great Price
    No Accidents
    Mercedes-Benz of Denver
    • 34.16 mi. away
    Call
    Price Drop
    Used 2022 GMC Sierra 2500 Denali
    Used

    2022 GMC Sierra 2500

    • Denali
    • 58K mi
    58,189
    See payment
    Great Price
    Mike Maroone Cadillac
    • 12.68 mi. away
    Call
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    Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used

    2020 GMC Sierra 2500

    • Denali
    • 109K mi
    47,360
    See payment
    Great Price
    Sill-TerHar Motors
    • 17.88 mi. away
    • Delivery
    Call
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    Used 2023 GMC Sierra 2500 AT4 w/ AT4 Preferred Package
    Used

    2023 GMC Sierra 2500

    • AT4
    • 40K mi
    61,600
    See payment
    Great Price
    No Accidents
    Corwin Toyota Boulder
    • 12.7 mi. away
    Call
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    Used 2021 GMC Sierra 2500 AT4
    Used

    2021 GMC Sierra 2500

    • AT4
    • 49K mi
    58,271
    See payment
    Great Price
    No Accidents
    Loveland Ford Lincoln
    • 16.45 mi. away
    Call
    Used 2021 GMC Sierra 2500 SLT w/ Gooseneck/5TH Wheel Package
    Used

    2021 GMC Sierra 2500

    • SLT
    • 29K mi
    55,796
    See payment
    Great Price
    No Accidents
    Mountain States Toyota
    • 25.06 mi. away
    Call
    Used 2022 GMC Sierra 2500 SLT w/ SLT Convenience Package
    Used

    2022 GMC Sierra 2500

    • SLT
    • 63K mi
    49,995
    See payment
    Good Price
    No Accidents
    Truck Ranch Frederick
    • 7.87 mi. away
    • Delivery
    Call
    Used 2024 GMC Sierra 2500 Denali Ultimate
    Used

    2024 GMC Sierra 2500

    • Denali Ultimate
    • 20K mi
    78,988
    See payment
    Good Price
    No Accidents
    Interstate Ford
    • 9.37 mi. away
    Call
    Used 2022 GMC Sierra 2500 AT4 w/ AT4 Preferred Package
    Used

    2022 GMC Sierra 2500

    • AT4
    • 27K mi
    74,500
    See payment
    No Accidents
    Private Seller Exchange
    • 30.1 mi. away
    • Buy Online. Clean title. No Hassle
    Price Drop
    Used 2021 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used

    2021 GMC Sierra 2500

    • Denali
    • 91K mi
    51,097
    Great Price
    No Accidents
    Foundation Chevrolet CADILLAC
    • 27.06 mi. away
    • Online Paperwork
    Call
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    Used 2022 GMC Sierra 2500 Denali w/ Denali Ultimate Package
    Used

    2022 GMC Sierra 2500

    • Denali
    • 48K mi
    59,900
    See payment
    Good Price
    No Accidents
    Corwin Toyota Boulder
    • 12.7 mi. away
    Call
    Used 2024 GMC Sierra 2500 Pro
    Used

    2024 GMC Sierra 2500

    • Pro
    • 10K mi
    54,910
    See payment
    Good Price
    No Accidents
    Transwest GMC
    • 23.85 mi. away
    Call
    Used 2022 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    Used

    2022 GMC Sierra 2500

    • AT4
    • 41K mi
    56,900
    See payment
    Great Price
    No Accidents
    Shortline Buick GMC
    • 35.78 mi. away
    Call
    Used 2019 GMC Sierra 2500 Denali w/ Duramax Plus Package
    Used

    2019 GMC Sierra 2500

    • Denali
    • 84K mi
    50,500
    See payment
    Good Price
    No Accidents
    AutoNation Chevrolet North
    • 24.86 mi. away
    Call
    Price Drop
    Used 2016 GMC Sierra 2500 Denali w/ Duramax Plus Package
    Used

    2016 GMC Sierra 2500

    • Denali
    • 115K mi
    42,500
    See payment
    Good Price
    No Accidents
    AutoNation Dodge Ram Broadway
    • 39.4 mi. away
    Call
    Price Drop
    Used 2023 GMC Sierra 2500 AT4 w/ Gooseneck/5TH Wheel Package
    Used

    2023 GMC Sierra 2500

    • AT4
    • 44K mi
    62,998
    See payment
    Good Price
    No Accidents
    Private Seller Exchange
    • 36.6 mi. away
    • Buy Online. Clean title. No Hassle
    Used 2026 GMC Sierra 2500 SLT
    Used

    2026 GMC Sierra 2500

    • SLT
    • 394 mi
    74,888
    See payment
    No Accidents
    O'Meara GMC
    • 20.86 mi. away
    • Delivery
    Call
    Used 2015 GMC Sierra 2500 SLT w/ Duramax Plus Package
    Used

    2015 GMC Sierra 2500

    • SLT
    • 56K mi
    43,399
    Great Price
    No Accidents
    Weld County Garage
    • 23.81 mi. away
    • Online Paperwork
    Call
    Used 2021 GMC Sierra 2500 SLE w/ SLE Convenience Package
    Used

    2021 GMC Sierra 2500

    • SLE
    • 30K mi
    44,499
    Great Price
    No Accidents
    Weld County Garage
    • 23.81 mi. away
    • Online Paperwork
    Call

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