Skip to main content
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed
Skip to Filters
  • Pacific Blue Metallic 2020 GMC Sierra 1500 AT4Pacific Blue Metallic 2020 GMC Sierra 1500 AT4

    $42,282

    24,103 mi.
    Est. $717/mo

    O'Meara GMC

    3.0
    Thornton, CO (24 mi)
    Check Availability

    Quick view
  • Summit White 2024 GMC Sierra 1500 AT4Summit White 2024 GMC Sierra 1500 AT4Summit White 2024 GMC Sierra 1500 AT4Summit White 2024 GMC Sierra 1500 AT4Summit White 2024 GMC Sierra 1500 AT4Summit White 2024 GMC Sierra 1500 AT4

    $54,997

    $1K
    29,205 mi.
    Est. $933/mo

    ClearShift - Loveland

    4.7
    Loveland, CO (16 mi)
    Check Availability

    Quick view
  • Dynamic Blue Metallic 2023 GMC Sierra 1500 AT4Dynamic Blue Metallic 2023 GMC Sierra 1500 AT4Dynamic Blue Metallic 2023 GMC Sierra 1500 AT4Dynamic Blue Metallic 2023 GMC Sierra 1500 AT4Dynamic Blue Metallic 2023 GMC Sierra 1500 AT4Dynamic Blue Metallic 2023 GMC Sierra 1500 AT4

    $44,264

    $1.2K
    80,609 mi.
    Est. $751/mo

    Loveland Ford Lincoln

    4.3
    Loveland, CO (17 mi)
    Check Availability
    Quick view
  • Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4Black 2021 GMC Sierra 1500 AT4

    $34,890

    122,890 mi.
    Est. $592/mo

    Berkenkotter Motors Brighton

    4.1
    Brighton, CO (24 mi)
    Check Availability
    Quick view
  • Sterling Metallic 2025 GMC Sierra 1500 AT4Sterling Metallic 2025 GMC Sierra 1500 AT4Sterling Metallic 2025 GMC Sierra 1500 AT4Sterling Metallic 2025 GMC Sierra 1500 AT4Sterling Metallic 2025 GMC Sierra 1500 AT4Sterling Metallic 2025 GMC Sierra 1500 AT4

    $56,698

    $2.2K
    11,240 mi.
    Est. $962/mo

    BMW of Loveland

    4.9
    Loveland, CO (20 mi)
    Check Availability
    Quick view
  • Onyx Black 2025 GMC Sierra 1500 AT4Onyx Black 2025 GMC Sierra 1500 AT4Onyx Black 2025 GMC Sierra 1500 AT4Onyx Black 2025 GMC Sierra 1500 AT4Onyx Black 2025 GMC Sierra 1500 AT4Onyx Black 2025 GMC Sierra 1500 AT4

    $56,564

    41,626 mi.
    Est. $960/mo

    Subaru of Loveland

    5.0
    Loveland, CO (20 mi)
    Check Availability
    Quick view
  • Thunderstorm Gray 2024 GMC Sierra 1500 AT4Thunderstorm Gray 2024 GMC Sierra 1500 AT4Thunderstorm Gray 2024 GMC Sierra 1500 AT4Thunderstorm Gray 2024 GMC Sierra 1500 AT4Thunderstorm Gray 2024 GMC Sierra 1500 AT4Thunderstorm Gray 2024 GMC Sierra 1500 AT4

    $56,686

    $1.9K
    24,625 mi.
    Est. $962/mo

    Loveland Buick GMC

    Loveland, CO (20 mi)
    Check Availability
    Quick view
  • Gray 2024 GMC Sierra 1500 AT4Gray 2024 GMC Sierra 1500 AT4Gray 2024 GMC Sierra 1500 AT4Gray 2024 GMC Sierra 1500 AT4Gray 2024 GMC Sierra 1500 AT4Gray 2024 GMC Sierra 1500 AT4

    $51,000

    $590
    52,946 mi.
    Est. $865/mo

    Weld County Garage GMC Hummer

    4.5
    Greeley, CO (27 mi)
    Check Availability

    Quick view
  • Summit White 2023 GMC Sierra 1500 AT4Summit White 2023 GMC Sierra 1500 AT4Summit White 2023 GMC Sierra 1500 AT4Summit White 2023 GMC Sierra 1500 AT4Summit White 2023 GMC Sierra 1500 AT4Summit White 2023 GMC Sierra 1500 AT4

    $48,656

    $892
    60,636 mi.
    Est. $825/mo

    Ken Garff Ford Greeley

    3.7
    Ft. Collins, CO (27 mi)
    Check Availability
    Quick view
  • Onyx Black 2023 GMC Sierra 1500 AT4Onyx Black 2023 GMC Sierra 1500 AT4Onyx Black 2023 GMC Sierra 1500 AT4Onyx Black 2023 GMC Sierra 1500 AT4Onyx Black 2023 GMC Sierra 1500 AT4Onyx Black 2023 GMC Sierra 1500 AT4

    $47,588

    79,934 mi.
    Est. $807/mo

    Markley Honda

    4.6
    Fort Collins, CO (25 mi)
    Check Availability
    Quick view
  • Onyx Black 2023 GMC Sierra 1500 AT4Onyx Black 2023 GMC Sierra 1500 AT4Onyx Black 2023 GMC Sierra 1500 AT4Onyx Black 2023 GMC Sierra 1500 AT4Onyx Black 2023 GMC Sierra 1500 AT4Onyx Black 2023 GMC Sierra 1500 AT4

    $55,383

    $2K
    40,830 mi.
    Est. $940/mo

    Loveland Ford Lincoln

    4.3
    Loveland, CO (17 mi)
    Check Availability
    Quick view
  • Black 2025 GMC Sierra 1500 AT4Black 2025 GMC Sierra 1500 AT4Black 2025 GMC Sierra 1500 AT4Black 2025 GMC Sierra 1500 AT4Black 2025 GMC Sierra 1500 AT4Black 2025 GMC Sierra 1500 AT4

    $50,897

    $1.8K
    61,430 mi.
    Est. $863/mo

    Weld County Garage GMC Hummer

    4.5
    Greeley, CO (27 mi)
    Check Availability
    Quick view
  • Onyx Black 2024 GMC Sierra 1500 AT4Onyx Black 2024 GMC Sierra 1500 AT4Onyx Black 2024 GMC Sierra 1500 AT4Onyx Black 2024 GMC Sierra 1500 AT4Onyx Black 2024 GMC Sierra 1500 AT4Onyx Black 2024 GMC Sierra 1500 AT4

    $55,593

    34,011 mi.
    Est. $943/mo

    Transwest GMC Denver

    4.8
    Henderson, CO (28 mi)
    Check Availability
    Quick view
  • Blue 2022 GMC Sierra 1500 AT4Blue 2022 GMC Sierra 1500 AT4Blue 2022 GMC Sierra 1500 AT4Blue 2022 GMC Sierra 1500 AT4Blue 2022 GMC Sierra 1500 AT4Blue 2022 GMC Sierra 1500 AT4

    $44,000

    83,725 mi.
    Est. $746/mo

    Weld County Garage GMC Hummer

    4.5
    Greeley, CO (27 mi)
    Check Availability

    Quick view
  • Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4Onyx Black 2021 GMC Sierra 1500 AT4

    $45,684

    $1.2K
    54,721 mi.
    Est. $775/mo

    Sterling Auto Sales - Frederick

    Longmont, CO (13 mi)
    Check Availability
    Quick view
  • Cayenne Red Tintcoat 2021 GMC Sierra 1500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 1500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 1500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 1500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 1500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 1500 AT4

    $41,625

    $3K
    75,870 mi.
    Est. $706/mo

    Loveland Ford Lincoln

    4.3
    Loveland, CO (17 mi)
    Check Availability
    Quick view
  • Cayenne Red Tintcoat 2021 GMC Sierra 1500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 1500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 1500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 1500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 1500 AT4Cayenne Red Tintcoat 2021 GMC Sierra 1500 AT4

    $51,950

    47,701 mi.
    Est. $881/mo

    Sterling Auto Sales - Frederick

    Longmont, CO (13 mi)
    Check Availability
    Quick view
  • Onyx Black 2019 GMC Sierra 1500 AT4Onyx Black 2019 GMC Sierra 1500 AT4Onyx Black 2019 GMC Sierra 1500 AT4Onyx Black 2019 GMC Sierra 1500 AT4Onyx Black 2019 GMC Sierra 1500 AT4Onyx Black 2019 GMC Sierra 1500 AT4

    $31,092

    93,245 mi.
    Est. $527/mo

    Sterling Auto Sales - Frederick

    Longmont, CO (13 mi)
    Check Availability
    Quick view
  • Summit White 2025 GMC Sierra 1500 AT4Summit White 2025 GMC Sierra 1500 AT4Summit White 2025 GMC Sierra 1500 AT4Summit White 2025 GMC Sierra 1500 AT4Summit White 2025 GMC Sierra 1500 AT4Summit White 2025 GMC Sierra 1500 AT4

    $54,714

    $274
    46,316 mi.
    Est. $928/mo

    Johnson Auto Plaza

    3.4
    Brighton, CO (26 mi)
    Check Availability
    Quick view
  • Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4Gray 2021 GMC Sierra 1500 AT4

    $36,581

    $1.4K
    97,157 mi.
    Est. $621/mo

    Weld County Garage GMC Hummer

    4.5
    Greeley, CO (27 mi)
    Check Availability

    Quick view
  • 2021 GMC Sierra 1500 AT42021 GMC Sierra 1500 AT42021 GMC Sierra 1500 AT42021 GMC Sierra 1500 AT42021 GMC Sierra 1500 AT42021 GMC Sierra 1500 AT4

    $42,304

    $1.6K
    47,146 mi.
    Est. $718/mo

    Sterling Auto Sales - Frederick

    Longmont, CO (13 mi)
    Check Availability
    Quick view
  • Titanium Rush Metallic 2023 GMC Sierra 1500 AT4Titanium Rush Metallic 2023 GMC Sierra 1500 AT4Titanium Rush Metallic 2023 GMC Sierra 1500 AT4Titanium Rush Metallic 2023 GMC Sierra 1500 AT4Titanium Rush Metallic 2023 GMC Sierra 1500 AT4Titanium Rush Metallic 2023 GMC Sierra 1500 AT4

    $49,103

    $799
    59,992 mi.
    Est. $833/mo

    Loveland Buick GMC

    Loveland, CO (20 mi)
    Check Availability
    Quick view
  • Gray 2024 GMC Sierra 1500 AT4Gray 2024 GMC Sierra 1500 AT4Gray 2024 GMC Sierra 1500 AT4Gray 2024 GMC Sierra 1500 AT4Gray 2024 GMC Sierra 1500 AT4Gray 2024 GMC Sierra 1500 AT4

    $53,950

    34,210 mi.
    Est. $915/mo

    Sterling Auto Sales - Frederick

    Longmont, CO (13 mi)
    Check Availability
    Quick view
  • Onyx Black 2022 GMC Sierra 1500 AT4Onyx Black 2022 GMC Sierra 1500 AT4Onyx Black 2022 GMC Sierra 1500 AT4

    $50,556

    14,160 mi.
    Est. $858/mo

    Subaru of Loveland

    5.0
    Loveland, CO (20 mi)
    Check Availability
    Quick view
  • 2020 GMC Sierra 1500 AT42020 GMC Sierra 1500 AT42020 GMC Sierra 1500 AT42020 GMC Sierra 1500 AT42020 GMC Sierra 1500 AT42020 GMC Sierra 1500 AT4

    $39,398

    $597
    85,005 mi.
    Est. $668/mo

    Sterling Auto Sales - Frederick

    Longmont, CO (13 mi)
    Check Availability
    Quick view
  • Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4Satin Steel Metallic 2021 GMC Sierra 1500 AT4

    $39,372

    64,895 mi.
    Est. $668/mo

    Laura Buick GMC

    4.5
    $1,631 delivery from Collinsville, IL (816 mi)
    Check Availability
    Quick view
  • Satin Steel Metallic 2020 GMC Sierra 1500 AT4Satin Steel Metallic 2020 GMC Sierra 1500 AT4Satin Steel Metallic 2020 GMC Sierra 1500 AT4Satin Steel Metallic 2020 GMC Sierra 1500 AT4Satin Steel Metallic 2020 GMC Sierra 1500 AT4Satin Steel Metallic 2020 GMC Sierra 1500 AT4

    $36,809

    $845
    98,512 mi.
    Est. $624/mo

    Shottenkirk Toyota of Granbury

    4.4
    $1,015 delivery from Granbury, TX (677 mi)
    Check Availability
    Quick view
Skip to Listings
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed

GMC Sierra 1500 AT4 by city

GMC Sierra 1500 AT4 by year

GMC Sierra 1500 by trim