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AutoNation USA Denver 104

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EchoPark Automotive Denver (Thornton)

Larry H. Miller Ford Lakewood

Foundation Chevrolet CADILLAC

Private Seller Exchange

Fowler Chevrolet

Spider

Fullsize Crew Cab

Truck

AWD4WD

Electric

Hummer EV

Battery Pack, 24 Module Pack

New 2025 GMC Hummer EV 3X w/ Battery Pack, 24 Module Pack

New 2025 GMC Hummer EV 3X w/ Battery Pack, 24 Module Pack Loveland CO 80538

Automatic

8-Cylinder Turbo

Diesel

Used

Sierra 3500

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Used 2011 GMC Sierra 3500 Denali

Used 2011 GMC Sierra 3500 Denali Longmont CO 80504

Denali

8-Cylinder

Gasoline

Sierra 1500

Used 2019 GMC Sierra 1500 SLT

Used 2019 GMC Sierra 1500 SLT Loveland CO 80538

Sierra 2500

Max Trailering Package

Technology Package

Snow Plow Prep/Camper Package

New 2025 GMC Sierra 2500 Denali w/ Max Trailering Package

New 2025 GMC Sierra 2500 Denali w/ Max Trailering Package Denver CO 80234

AT4X AEV Edition

Used 2024 GMC Sierra 1500 AT4X w/ AT4X AEV Edition

Used 2024 GMC Sierra 1500 AT4X w/ AT4X AEV Edition Longmont CO 80501

AT4X

SLT Premium Plus Package

Used 2020 GMC Sierra 1500 SLT w/ SLT Premium Plus Package

Used 2020 GMC Sierra 1500 SLT w/ SLT Premium Plus Package Longmont CO 80504

1SA Pro Safety Plus Package

Convenience Package

New 2025 GMC Sierra 2500 Pro w/ 1SA Pro Safety Plus Package

New 2025 GMC Sierra 2500 Pro w/ 1SA Pro Safety Plus Package Castle Rock CO 80104

Used 2023 GMC Sierra 1500 Denali

Used 2023 GMC Sierra 1500 Denali Denver CO 80234

AT4 Premium Package

Used 2023 GMC Sierra 1500 AT4 w/ AT4 Premium Package

Used 2023 GMC Sierra 1500 AT4 w/ AT4 Premium Package Longmont CO 80504

Denali Ultimate Package

Used 2021 GMC Sierra 1500 Denali w/ Denali Ultimate Package

Used 2021 GMC Sierra 1500 Denali w/ Denali Ultimate Package Loveland CO 80538

New 2025 GMC Sierra 2500 Denali Ultimate w/ Max Trailering Package

New 2025 GMC Sierra 2500 Denali Ultimate w/ Max Trailering Package Denver CO 80234

Denali Ultimate

Used 2018 GMC Sierra 1500 Denali

Used 2018 GMC Sierra 1500 Denali Golden CO 80401

Third-Party Certified

Duramax Plus Package

Suspension Package, Off-Road

<div class="text-bold text-default margin-top-3 col-xs-12 margin-bottom-5">Confidence at Every Turn.</div><div class="col-xs-12"><ul><li>139-Point Inspection by Factory-Trained Technicians</li><li>90-Day/4,000-Mile (whichever comes first) Comprehensive Warranty¹</li><li>Nationwide Dealer Network for Service and Accessories</li><li>Complimentary 24/7 Roadside Assistance²</li><li>CARFAX® Vehicle History Report³</li><li>11,000 FordPass™ Rewards Points⁴ to Use Toward Your First Maintenance Visit</li></ul><p>Exceptional Coverage Comes Standard.</p></div><div class="margin-top-4 text-size-200 text-subdued col-xs-12"><div class="padding-bottom-4">Disclaimer</div><div class="text-size-100"><sup>1</sup> See your dealer for warranty coverage details.</br><sup>2</sup> See your dealer for coverage details. Roadside Assistance is included for certain owners and available to everyone for a per-service fee. Ford reserves the right to change program details without obligations.</br><sup>3</sup> CARFAX® is a registered trademark of CARFAX® Inc.<br/><sup>4</sup> FordPass App, compatible with select smartphone platforms, is available via a download. Message and data rates may apply.</div></div>

Ford Blue Advantage - Blue Certified

Used 2019 GMC Sierra 3500 Denali w/ Duramax Plus Package

Used 2019 GMC Sierra 3500 Denali w/ Duramax Plus Package Lakewood CO 80215

6-Cylinder Turbo

AT4 Value Package

Driver Alert Package II

Used 2021 GMC Sierra 1500 AT4 w/ AT4 Value Package

Used 2021 GMC Sierra 1500 AT4 w/ AT4 Value Package Boulder CO 80301

Fullsize Extended Cab

Used 1995 GMC Sierra 1500 SLE

Used 1995 GMC Sierra 1500 SLE Longmont CO 80501

Denali Reserve Package

New 2025 GMC Sierra 2500 Denali w/ Denali Reserve Package

New 2025 GMC Sierra 2500 Denali w/ Denali Reserve Package Denver CO 80234

SLT Crew Cab Premium Plus Package

Used 2016 GMC Sierra 1500 SLT

Used 2016 GMC Sierra 1500 SLT Broomfield CO 80020

Used 2018 GMC Sierra 3500 Denali w/ Duramax Plus Package

Used 2018 GMC Sierra 3500 Denali w/ Duramax Plus Package Denver CO 80234

Used 2022 GMC Sierra 2500 SLE

Used 2022 GMC Sierra 2500 SLE Denver CO 80234

Used 2023 GMC Sierra 1500 AT4X

Used 2023 GMC Sierra 1500 AT4X Longmont CO 80504

4-Cylinder Turbo

Used 2023 GMC Sierra 1500 Elevation

Used 2023 GMC Sierra 1500 Elevation Boulder CO 80301

Elevation

Used 2020 GMC Sierra 1500 AT4 w/ AT4 Premium Package

Used 2020 GMC Sierra 1500 AT4 w/ AT4 Premium Package Centennial CO 80112

Denali Black Diamond Edition

Used 2023 GMC Sierra 2500 Denali w/ Denali Black Diamond Edition

Used 2023 GMC Sierra 2500 Denali w/ Denali Black Diamond Edition Denver CO 80234

Texas Edition SLT Premium Package

X31 Off-Road and Protection Package

Driver Alert Package I

Used 2021 GMC Sierra 1500 SLT

Used 2021 GMC Sierra 1500 SLT Thornton CO 80233

Used 2018 GMC Sierra 1500 4x4 Double Cab

Used 2018 GMC Sierra 1500 4x4 Double Cab Denver CO 80234

4x4 Double Cab

Compact Crew Cab

6-Cylinder

Canyon

Used 2018 GMC Canyon Denali

Used 2018 GMC Canyon Denali Denver CO 80234

Nightfall Edition

Driver Alert Package

Trailering Package

Used 2016 GMC Canyon SLE w/ Nightfall Edition

Used 2016 GMC Canyon SLE w/ Nightfall Edition Denver CO 80234

Gooseneck/5TH Wheel Package

LPO, Hitch Package

Heavy Duty Front Spring/Camper Package

Used 2020 GMC Sierra 3500 Denali w/ Denali Ultimate Package

Used 2020 GMC Sierra 3500 Denali w/ Denali Ultimate Package Boulder CO 80301

SLT Premium Package

X31 Off-Road Package

Used 2020 GMC Sierra 1500 SLT w/ SLT Premium Package

Used 2020 GMC Sierra 1500 SLT w/ SLT Premium Package Longmont CO 80504

Preferred Package

Sierra Safety Plus Package

LPO, Elevation Black Package

Used 2022 GMC Sierra 1500 Elevation w/ Preferred Package

Used 2022 GMC Sierra 1500 Elevation w/ Preferred Package Loveland CO 80538

Used 2022 GMC Sierra 1500 Elevation

Used 2022 GMC Sierra 1500 Elevation Longmont CO 80501

Used 2020 GMC Sierra 3500 Denali w/ Denali Ultimate Package Brighton CO 80601

SLE Convenience Package

Used 2023 GMC Sierra 2500 SLE w/ SLE Convenience Package

Used 2023 GMC Sierra 2500 SLE w/ SLE Convenience Package Denver CO 80234

Skid Plate Package, Frame-Mounted Shields

Used 2008 GMC Sierra 3500 SLT w/ Convenience Package

Used 2008 GMC Sierra 3500 SLT w/ Convenience Package Longmont CO 80501

Used 2019 GMC Canyon SLT w/ Driver Alert Package

Used 2019 GMC Canyon SLT w/ Driver Alert Package Henderson CO 80640

Used 2019 GMC Sierra 2500 Denali w/ Duramax Plus Package

Used 2019 GMC Sierra 2500 Denali w/ Duramax Plus Package Aurora CO 80014

Used 2021 GMC Sierra 1500 AT4

Used 2021 GMC Sierra 1500 AT4 Northglenn CO 80234

Used 2023 GMC Sierra 1500 AT4X w/ AT4X AEV Edition

Used 2023 GMC Sierra 1500 AT4X w/ AT4X AEV Edition Denver CO 80234

Gooseneck/5TH Wheel Prep Package

Used 2024 GMC Sierra 3500 Denali Ultimate

Used 2024 GMC Sierra 3500 Denali Ultimate Longmont CO 80504

SLT Preferred Package

Used 2023 GMC Sierra 1500 SLT w/ SLT Premium Package

Used 2023 GMC Sierra 1500 SLT w/ SLT Premium Package Denver CO 80234

Used 2023 GMC Sierra 1500 Denali w/ Denali Reserve Package

Used 2023 GMC Sierra 1500 Denali w/ Denali Reserve Package Denver CO 80234

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O'Meara GMC

Castle Rock Chevrolet GMC

Davidson-Gebhardt Chevrolet

Denver

Used Cars for Sale

Test drive Used GMC Trucks at home in Longmont, CO. Search from 559 Used GMC Trucks for sale, including a  1995 GMC Sierra 1500 SLE, a  2008 GMC Sierra 3500 SLT, and a  2011 GMC Sierra 3500 Denali ranging in price from $4,988 to $95,799.

Used GMC Trucks for Sale in Longmont, CO - Autotrader

Used GMC Commercial Trucks and Work Trucks for Sale Near Me

Search from 559 GMC Trucks for sale, including a Used 1995 GMC Sierra 1500 SLE, a Used 2008 GMC Sierra 3500 SLT w/ Convenience Package, and a Used 2011 GMC Sierra 3500 Denali ranging in price from $4,988 to $95,799.

Autotrader has 559 GMC Trucks for sale near Longmont, CO, including a Used 1995 GMC Sierra 1500 SLE, a Used 2008 GMC Sierra 3500 SLT w/ Convenience Package, and a Used 2011 GMC Sierra 3500 Denali ranging in price from $4,988 to $95,799.

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Used GMC Trucks for Sale in Longmont, CO

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Used 2023 GMC Sierra 2500 Denali w/ Denali Black Diamond Edition

559 Matches

Used 2021 GMC Sierra 1500 Denali

Used 2020 GMC Sierra 1500 AT4

Used 2018 GMC Sierra 1500 Denali