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Used 2026 GMC Sierra 1500 for Sale in Westminster, CO

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Items 1 to 2 of 11.
    Sponsored by Red Rock GMC
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    Used 2026 GMC Sierra 1500 Denali w/ Denali Reserve Package
    65,456
    Dealer Fees Included
    Red Rock GMC
    1 (855) 646-2294
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    58View Vehicles

    21 Matches

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    Used 2026 GMC Sierra 1500 AT4X

    2026 GMC Sierra 1500

    • AT4X
    • 5K mi
    71,998
    Dealer Fees Included
    No Accidents
    Sponsored by Phil Long Ford Denver
    • 13.77 mi. away
    Call
    Price Drop
    Certified 2026 GMC Sierra 1500 Denali Ultimate

    2026 GMC Sierra 1500

    • Denali Ultimate
    • 9K mi
    65,297
    Great Price
    Dealer Fees Included
    No Accidents
    Sponsored by Castle Rock Chevrolet GMC
    • 33.97 mi. away
    Call
    Certified 2026 GMC Sierra 1500 Denali Ultimate

    2026 GMC Sierra 1500

    • Denali Ultimate
    • 6K mi
    66,798
    Great Price
    Dealer Fees Included
    No Accidents
    Sponsored by Castle Rock Chevrolet GMC
    • 33.97 mi. away
    Call
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    $

    Based on 4.5% APR for mos.
    Newly Listed
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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
    • 3.99 mi. away
    • Online Paperwork
    • Delivery
    Call
    Newly Listed
    360°
    Used 2026 GMC Sierra 1500 Elevation w/ Elevation Select Package
    Used

    2026 GMC Sierra 1500

    • Elevation
    • 5K mi
    44,888
    No Accidents
    O'Meara GMC
    • 3.99 mi. away
    • Online Paperwork
    • Delivery
    Call
    360°
    Used 2026 GMC Sierra 1500 AT4X

    2026 GMC Sierra 1500

    • AT4X
    • 5K mi
    71,998
    Dealer Fees Included
    No Accidents
    Phil Long Ford Denver
    • 13.77 mi. away
    Call
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    Price Drop
    Used 2026 GMC Sierra 1500 Denali Ultimate
    Used

    2026 GMC Sierra 1500

    • Denali Ultimate
    • 10K mi
    69,590
    Good Price
    Dealer Fees Included
    No Accidents
    ClearShift
    • 18.6 mi. away
    Call
    Price Drop
    Certified 2026 GMC Sierra 1500 Denali Ultimate

    2026 GMC Sierra 1500

    • Denali Ultimate
    • 9K mi
    65,297
    Great Price
    Dealer Fees Included
    No Accidents
    Castle Rock Chevrolet GMC
    • 33.97 mi. away
    Call
    Price Drop
    Certified 2026 GMC Sierra 1500 Denali Ultimate w/ LPO, Black Badging Package

    2026 GMC Sierra 1500

    • Denali Ultimate
    • 5K mi
    66,097
    Great Price
    Dealer Fees Included
    No Accidents
    Castle Rock Chevrolet GMC
    • 33.97 mi. away
    Call
    Used 2026 GMC Sierra 1500 Elevation w/ Elevation Select Package
    Used

    2026 GMC Sierra 1500

    • Elevation
    • 10K mi
    44,298
    Great Price
    Dealer Fees Included
    No Accidents
    AutoNation Chrysler Dodge Jeep Ram Arapahoe
    • 18.57 mi. away
    Call
    Used 2026 GMC Sierra 1500 Elevation
    Used

    2026 GMC Sierra 1500

    • Elevation
    • 4K mi
    58,532
    Dealer Fees Included
    No Accidents
    JOHNSON AUTO PLAZA
    • 12.93 mi. away
    • Delivery
    Call
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    Certified 2026 GMC Sierra 1500 Denali Ultimate

    2026 GMC Sierra 1500

    • Denali Ultimate
    • 6K mi
    66,798
    Great Price
    Dealer Fees Included
    No Accidents
    Castle Rock Chevrolet GMC
    • 33.97 mi. away
    Call
    Used 2026 GMC Sierra 1500 Elevation
    Used

    2026 GMC Sierra 1500

    • Elevation
    • 12K mi
    49,998
    Dealer Fees Included
    No Accidents
    Mike Maroone Chevrolet GMC Longmont
    • 22.78 mi. away
    Call
    Certified 2026 GMC Sierra 1500 Elevation

    2026 GMC Sierra 1500

    • Elevation
    • 7K mi
    46,562
    Great Price
    Dealer Fees Included
    No Accidents
    Can be shipped to
    Alpine Buick GMC
    • 13.93 mi. away
    • Delivery
    Call
    Used 2026 GMC Sierra 1500 Pro w/ Pro Value Package
    Used

    2026 GMC Sierra 1500

    • Pro
    • 2K mi
    37,292
    Great Price
    Dealer Fees Included
    No Accidents
    Weld County Garage
    • 41.65 mi. away
    • Online Paperwork
    Call
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    Used 2026 GMC Sierra 1500 Denali Ultimate
    Used

    2026 GMC Sierra 1500

    • Denali Ultimate
    • 2K mi
    74,921
    Dealer Fees Included
    No Accidents
    Can be shipped to
    Alpine Buick GMC
    • 13.93 mi. away
    • Delivery
    Call
    Newly Listed
    Used 2026 GMC Sierra 1500 AT4X w/ AT4X AEV Edition
    Used

    2026 GMC Sierra 1500

    • AT4X
    • 609 mi
    72,990
    No Accidents
    O'Meara Ford
    • 4.49 mi. away
    Call
    Used 2026 GMC Sierra 1500 AT4 w/ AT4 Premium Package
    Used

    2026 GMC Sierra 1500

    • AT4
    • 7K mi
    48,950
    Dealer Fees Included
    Zara Auto Sales Inc.
    • 13.22 mi. away
    Call
    Used 2026 GMC Sierra 1500 Elevation w/ Elevation Premium Package
    Used

    2026 GMC Sierra 1500

    • Elevation
    • 6K mi
    45,000
    Autolocity Motors
    • Delivery
    Call
    Used 2026 GMC Sierra 1500 AT4 w/ Technology Package
    Used

    2026 GMC Sierra 1500

    • AT4
    • 547 mi
    51,700
    Autolocity Motors
    • Delivery
    Call
    Used 2026 GMC Sierra 1500 Denali w/ Technology Package
    Used

    2026 GMC Sierra 1500

    • Denali
    • 7K mi
    52,800
    Autolocity Motors
    • Delivery
    Call
    Used 2026 GMC Sierra 1500 AT4 w/ AT4 Premium Package
    Used

    2026 GMC Sierra 1500

    • AT4
    • 13K mi
    51,000
    Autolocity Motors
    • Delivery
    Call
    Used 2026 GMC Sierra 1500 AT4X
    Used

    2026 GMC Sierra 1500

    • AT4X
    • 16K mi
    67,181
    Dealer Fees Included
    No Accidents
    Interstate Ford
    • 17.9 mi. away
    Call
    Newly Listed
    No Image Available
    Used

    2026 GMC Sierra 1500

    • Denali
    • 10K mi
    64,494
    Dealer Fees Included
    No Accidents
    Dealer
    • 41.67 mi. away
    • Delivery
    Call
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