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Used GMC Trucks for Sale in Longmont, CO

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Items 1 to 2 of 16.
    Sponsored by O'Meara GMC
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    Used 2026 GMC Sierra 1500 Denali Ultimate
    67,888
    O'Meara GMC
    (720) 702-3361
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    79View Vehicles

    537 Matches

    Used 2024 GMC Sierra 1500 Elevation
    Used

    2024 GMC Sierra 1500

    • Elevation
    • 31K mi
    38,497
    Dealer Fees Included
    No Accidents
    Sponsored by EchoPark - Centennial
    • 42.16 mi. away
    Call
    Used 2022 GMC Sierra 1500 AT4 w/ AT4 Preferred Package
    Used

    2022 GMC Sierra 1500

    • AT4
    • 30K mi
    48,581
    Great Price
    Dealer Fees Included
    No Accidents
    Can be shipped to
    Sponsored by Alpine Buick GMC
    • 37.64 mi. away
    • Delivery
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    Used 2025 GMC Sierra 1500 SLT
    Used

    2025 GMC Sierra 1500

    • SLT
    • 42K mi
    39,997
    Dealer Fees Included
    No Accidents
    Sponsored by EchoPark - Thornton
    • 21.33 mi. away
    Call
    My Wallet

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    $

    Based on 4.5% APR for mos.
    Newly Listed
    Certified 2019 GMC Sierra 2500 SLT w/ Duramax Plus Package

    2019 GMC Sierra 2500

    • SLT
    • 60K mi
    46,998
    Great Price
    Dealer Fees Included
    No Accidents
    Mike Maroone Chevrolet GMC Longmont
    • 4.1 mi. away
    Call
    Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package
    Used

    2024 GMC Sierra 2500

    • Denali
    • 23K mi
    71,009
    Dealer Fees Included
    No Accidents
    Mike Maroone Ford Longmont
    • 1.64 mi. away
    Call
    New 2026 GMC Sierra 1500 AT4X
    Consider Buying New

    2026 GMC Sierra 1500

    • AT4X
    • 4 mi
    73,894
    Castle Rock Chevrolet GMC
    • 58.13 mi. away
    Call
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    Certified 2020 GMC Sierra 1500 SLE w/ Remote Start Package

    2020 GMC Sierra 1500

    • SLE
    • 45K mi
    33,590
    Great Price
    Dealer Fees Included
    No Accidents
    Mike Maroone Cadillac
    • 12.68 mi. away
    Call
    Price Drop
    Certified 2025 GMC Sierra 1500 AT4 w/ AT4 Premium Package

    2025 GMC Sierra 1500

    • AT4
    • 8K mi
    56,100
    Great Price
    Dealer Fees Included
    No Accidents
    Mike Maroone Cadillac
    • 12.68 mi. away
    Call
    Sponsored
    Item 1 of 4.
    Used 2022 GMC Canyon Elevation w/ Elevation Premium Package
    RME HAS YOUR NEXT VEHICLE SEE WHY
    Used

    2022 GMC Canyon

    • Elevation
    • 52K mi
    32,590
    No Accidents
    Call
    Used 2023 GMC Sierra 1500 Pro w/ Pro Value Package
    Used

    2023 GMC Sierra 1500

    • Pro
    • 31K mi
    31,794
    Great Price
    Dealer Fees Included
    No Accidents
    Mike Maroone Ford Longmont
    • 1.64 mi. away
    Call
    High Demand
    Used 2022 GMC Sierra 1500 Elevation w/ Elevation Premium Package
    Used

    2022 GMC Sierra 1500

    • Elevation
    • 59K mi
    37,602
    Great Price
    Dealer Fees Included
    No Accidents
    Mike Maroone Ford Longmont
    • 1.64 mi. away
    Call
    Price Drop
    Certified 2024 GMC Sierra 1500 Denali Ultimate

    2024 GMC Sierra 1500

    • Denali Ultimate
    • 21K mi
    61,831
    Dealer Fees Included
    No Accidents
    Mike Maroone Chevrolet GMC Longmont
    • 4.1 mi. away
    Call
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    Used 2021 GMC Sierra 1500 SLT

    2021 GMC Sierra 1500

    • SLT
    • 13K mi
    43,999
    Great Price
    Dealer Fees Included
    No Accidents
    Freeway Ford
    • 35.63 mi. away
    Call
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    Used 2023 GMC Sierra 1500 SLT w/ SLT Premium Plus Package
    Used

    2023 GMC Sierra 1500

    • SLT
    • 29K mi
    43,422
    Dealer Fees Included
    No Accidents
    Mike Maroone Cadillac
    • 12.68 mi. away
    Call
    High Demand
    360°
    Used 2017 GMC Sierra 2500 SLE
    Used

    2017 GMC Sierra 2500

    • SLE
    • 78K mi
    25,337
    Great Price
    No Additional Dealer Fees
    No Accidents
    Sota Chevrolet
    • Online Paperwork
    • Delivery
    Call
    Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package
    Used

    2024 GMC Sierra 2500

    • AT4
    • 14K mi
    67,578
    Great Price
    Dealer Fees Included
    No Accidents
    Crossroads Hyundai
    • 18.59 mi. away
    • Online Paperwork
    • Delivery
    Call
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    Used 2022 GMC Canyon AT4 w/ Trailering Package
    Used

    2022 GMC Canyon

    • AT4
    • 27K mi
    34,593
    Great Price
    Dealer Fees Included
    No Accidents
    Transwest GMC
    • 23.85 mi. away
    Call
    Used 2024 GMC Canyon AT4 w/ Technology Package
    Used

    2024 GMC Canyon

    • AT4
    • 23K mi
    38,826
    Dealer Fees Included
    No Accidents
    Mike Maroone Ford Longmont
    • 1.64 mi. away
    Call
    Used 2022 GMC Sierra 2500 AT4 w/ AT4 Preferred Package
    Used

    2022 GMC Sierra 2500

    • AT4
    • 52K mi
    56,203
    Dealer Fees Included
    No Accidents
    Mike Maroone Ford Longmont
    • 1.64 mi. away
    Call
    High Demand
    Used 2020 GMC Sierra 1500 SLE
    Used

    2020 GMC Sierra 1500

    • SLE
    • 65K mi
    27,511
    Dealer Fees Included
    Mike Maroone Chevrolet GMC Longmont
    • 4.1 mi. away
    Call
    Price Drop
    Certified 2022 GMC Sierra 1500 SLT w/ X31 Off-Road Package

    2022 GMC Sierra 1500

    • SLT
    • 112K mi
    30,331
    Good Price
    Dealer Fees Included
    No Accidents
    Mike Maroone Chevrolet GMC Longmont
    • 4.1 mi. away
    Call
    Used 2026 GMC Sierra 1500 Elevation
    Used

    2026 GMC Sierra 1500

    • Elevation
    • 12K mi
    50,261
    Dealer Fees Included
    No Accidents
    Mike Maroone Chevrolet GMC Longmont
    • 4.1 mi. away
    Call
    Used 2022 GMC Sierra 1500 Elevation
    Used

    2022 GMC Sierra 1500

    • Elevation
    • 30K mi
    37,763
    No Additional Dealer Fees
    Reds Auto & Truck
    • 4.11 mi. away
    Call
    Used 2020 GMC Sierra 2500 Denali
    Used

    2020 GMC Sierra 2500

    • Denali
    • 65K mi
    57,345
    Good Price
    Dealer Fees Included
    No Accidents
    Loveland Ford Lincoln
    • 16.45 mi. away
    Call
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    Used 2023 GMC Sierra 1500 SLE
    Used

    2023 GMC Sierra 1500

    • SLE
    • 24K mi
    39,799
    Great Price
    Dealer Fees Included
    Emich Chevrolet
    • 34.35 mi. away
    Call
    Used 2018 GMC Sierra 1500 SLT w/ SLT Premium Package
    Used

    2018 GMC Sierra 1500

    • SLT
    • 97K mi
    28,990
    Great Price
    Dealer Fees Included
    No Accidents
    Fisher Auto Group
    • 13.9 mi. away
    Call
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    Used 2026 GMC Sierra 1500 Denali Ultimate
    Used

    2026 GMC Sierra 1500

    • Denali Ultimate
    • 9K mi
    67,888
    No Accidents
    O'Meara GMC
    • 20.86 mi. away
    • Online Paperwork
    • Delivery
    Call
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    Used 2020 GMC Sierra 1500 Denali w/ Denali Ultimate Package
    Used

    2020 GMC Sierra 1500

    • Denali
    • 55K mi
    38,798
    Great Price
    Dealer Fees Included
    No Accidents
    McDonald Volkswagen
    • 39.76 mi. away
    Call
    Used 2024 GMC Sierra 1500 Denali w/ Denali Reserve Package
    Used

    2024 GMC Sierra 1500

    • Denali
    • 14K mi
    57,000
    Great Price
    Dealer Fees Included
    No Accidents
    Larry H. Miller Ford Lakewood
    • 31.09 mi. away
    Call
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    Used 2019 GMC Sierra 1500 SLT w/ SLT Premium Package
    Used

    2019 GMC Sierra 1500

    • SLT
    • 79K mi
    34,998
    Great Price
    Dealer Fees Included
    No Accidents
    Phil Long Ford Denver
    • 37.51 mi. away
    Call
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