Skip to vehicle Listings
Online car buying built around you. Shop Now

Used GMC Cars for Sale in O Fallon, MO

63366
Filters (2)
Items 1 to 2 of 16.
    Sponsored by O'Fallon Buick GMC
    Used 2024 GMC Terrain AT4 w/ LPO, Floor Liner Package
    30,500
    Dealer Logo
    93View Vehicles

    1,074 Matches

    Used 2025 GMC Sierra 1500 Denali
    Used
    • Denali
    • 21K mi
    61,974
    Certified 2024 GMC Canyon AT4X
    • AT4X
    • 24K mi
    47,171
    Certified 2024 GMC Sierra 2500 SLT w/ SLT Premium Package
    • SLT
    • 74K mi
    56,545
    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 2018 GMC Canyon SLE w/ SLE Convenience Package
    Used
    • SLE
    • 62K mi
    20,449
    Used 2024 GMC Yukon Denali w/ Advanced Technology Package
    Used
    • Denali
    • 23K mi
    70,797
    New 2026 GMC Sierra 1500 Pro w/ Graphite Edition
    Advertisement
    Used 2021 GMC Sierra 1500 Denali w/ Denali Ultimate Package
    Used
    • Denali
    • 47K mi
    46,500
    Item 1 of 4.
    Used
    • Denali
    • 168K mi
    23,977
    Used 2024 GMC Sierra 1500 Elevation
    Used
    • Elevation
    • 12K mi
    44,000
    Used 2024 GMC Sierra 2500 Denali Ultimate
    Used
    • Denali Ultimate
    • 6K mi
    91,960
    Used 2022 GMC Canyon Elevation w/ Trailering Package
    Used
    • Elevation
    • 13K mi
    34,500
    Advertisement
    Used 2022 GMC Sierra 1500 AT4 w/ AT4 Premium Package
    45,386
    Used 2024 GMC Sierra 1500 Pro w/ Graphite Edition
    36,500
    Used 2024 GMC Sierra 1500 Pro w/ Graphite Edition
    36,500
    Used 2024 GMC Sierra 1500 Pro w/ Graphite Edition
    36,800
    Advertisement
    Used 2024 GMC Sierra 1500 Pro w/ Graphite Edition
    37,000
    Used 2024 GMC Sierra 1500 Pro w/ Graphite Edition
    39,500
    Used 2013 GMC Yukon XL Denali
    Used
    • Denali
    • 258K mi
    5,060
    Used 2015 GMC Acadia SLT
    Used
    • SLT
    • 141K mi
    10,990
    Used 2026 GMC Sierra 2500 SLE w/ SLE Value Package;
    57,594
    Used 2024 GMC Terrain AT4 w/ LPO, Floor Liner Package
    Used
    • AT4
    • 20K mi
    30,500
    Used 2024 GMC Sierra 2500 AT4 w/ Technology Package
    74,000
    Used 2024 GMC Sierra 2500 Pro w/ 1SA Pro Safety Plus Package
    54,610
    Used 2024 GMC Sierra 3500 Denali w/ Denali Reserve Package
    Used
    • Denali
    • 26K mi
    72,110
    Used 2023 GMC Acadia SLE
    Used
    • SLE
    • 24K mi
    30,946
    Used 2023 GMC Acadia SLT w/ LPO, Floor Liner Package
    Used
    • SLT
    • 17K mi
    33,546
    Used 2023 GMC Yukon Denali Ultimate
    Used
    • Denali Ultimate
    • 6K mi
    76,982
    Used 2012 GMC Sierra 1500 SLE w/ Power Tech Package
    Used
    • SLE
    • 174K mi
    8,495

    Used GMC for Sale by Model

    View All Models
    <!--{"relevance":[false,{}]}-->