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Diesel

Sierra 2500

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X31 Off-Road Package

Snow Plow Prep/Camper Package

New 2025 GMC Sierra 2500 SLT w/ SLT Premium Package

New 2025 GMC Sierra 2500 SLT w/ SLT Premium Package Lewes DE 19958

Automatic

Convenience Package

New 2025 GMC Sierra 2500 Pro

New 2025 GMC Sierra 2500 Pro Lewes DE 19958

1SA Pro Safety Plus 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 Lewes DE 19958

Denali Reserve Package

Max Trailering Package

New 2025 GMC Sierra 2500 Denali w/ Denali Reserve Package

New 2025 GMC Sierra 2500 Denali w/ Denali Reserve Package Lewes DE 19958

Denali

8-Cylinder

Gasoline

Used

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Used 2024 GMC Sierra 2500 AT4X w/ Snow Plow Prep/Camper Package

Used 2024 GMC Sierra 2500 AT4X w/ Snow Plow Prep/Camper Package Dover DE 19903

AT4X

Gooseneck/5TH Wheel Package

Used 2021 GMC Sierra 2500 AT4 w/ Gooseneck/5TH Wheel Package

Used 2021 GMC Sierra 2500 AT4 w/ Gooseneck/5TH Wheel Package Elkton MD 21921

Certified

LPO, Hitch Package

Certified 2024 GMC Sierra 2500 SLT w/ SLT Premium Package

Certified 2024 GMC Sierra 2500 SLT w/ SLT Premium Package Carneys Point NJ 08069

Denali Ultimate Package

Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package

Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package Warminster PA 18974

Certified 2022 GMC Sierra 2500 AT4 w/ Gooseneck/5TH Wheel Package

Certified 2022 GMC Sierra 2500 AT4 w/ Gooseneck/5TH Wheel Package Marlton NJ 08053

Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package

Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package Souderton PA 18964

Midsize

Sport Utility

4-Cylinder Turbo

Terrain

New 2026 GMC Terrain Denali

New 2026 GMC Terrain Denali Lewes DE 19958

AT4 Preferred Package

Driver Alert Package I

Driver Alert Package II

Used 2022 GMC Sierra 2500 AT4 w/ AT4 Preferred Package

Used 2022 GMC Sierra 2500 AT4 w/ AT4 Preferred Package Glassboro NJ 08028

Fullsize Regular Cab

Used 2022 GMC Sierra 2500 Pro w/ Convenience Package

Used 2022 GMC Sierra 2500 Pro w/ Convenience Package Williamstown NJ 08094

LPO, GMC Protection Package

Used 2024 GMC Sierra 2500 Denali Ultimate

Used 2024 GMC Sierra 2500 Denali Ultimate Ephrata PA 17522

Denali Ultimate

Certified 2025 GMC Sierra 2500 SLT

Certified 2025 GMC Sierra 2500 SLT Trevose PA 19053

Used 2024 GMC Sierra 2500 AT4 w/ AT4 Preferred Package

Used 2024 GMC Sierra 2500 AT4 w/ AT4 Preferred Package Abingdon MD 21009

Used 2020 GMC Sierra 2500 Denali

Used 2020 GMC Sierra 2500 Denali West Chester PA 19382

Used 2022 GMC Sierra 2500 Pro w/ Convenience Package Dover DE 19903

Used 2022 GMC Sierra 2500 Denali w/ Denali Ultimate Package

Used 2022 GMC Sierra 2500 Denali w/ Denali Ultimate Package Ephrata PA 17522

Fullsize

6-Cylinder

Acadia

Technology Package

Preferred Package

LPO, Floor Liner Package

Certified 2021 GMC Acadia SLT w/ Technology Package

Certified 2021 GMC Acadia SLT w/ Technology Package Lewes DE 19958

AT4 Premium Package

Used 2020 GMC Sierra 2500 AT4 w/ AT4 Premium Package

Used 2020 GMC Sierra 2500 AT4 w/ AT4 Premium Package Carneys Point NJ 08069

Used 2024 GMC Sierra 2500 AT4X

Used 2024 GMC Sierra 2500 AT4X Ephrata PA 17522

Used 2024 GMC Sierra 2500 Denali

Used 2024 GMC Sierra 2500 Denali Ephrata PA 17522

Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package Ephrata PA 17522

Flexible Fuel

SLT Convenience Package

Used 2013 GMC Sierra 2500 SLT w/ SLT Convenience Package

Used 2013 GMC Sierra 2500 SLT w/ SLT Convenience Package New Holland PA 17557

Compact Crew Cab

Canyon

SLE Convenience Package

Trailering Package

Used 2016 GMC Canyon SLE w/ SLE Convenience Package

Used 2016 GMC Canyon SLE w/ SLE Convenience Package Lewes DE 19958

New 2026 GMC Sierra 2500 AT4

New 2026 GMC Sierra 2500 AT4 Shillington PA 19607

Certified 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package

Certified 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package Doylestown PA 18902

Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package Ephrata PA 17522

AT4 Premium Plus Package

Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package Newark DE 19711

Duramax Plus Package

Suspension Package, Off-Road

Used 2017 GMC Sierra 2500 Denali w/ Duramax Plus Package

Used 2017 GMC Sierra 2500 Denali w/ Duramax Plus Package Paoli PA 19301

SLE Preferred Package

Snow Plow Prep Package

Used 2015 GMC Sierra 2500 SLE w/ SLE Preferred Package

Used 2015 GMC Sierra 2500 SLE w/ SLE Preferred Package Jarrettsville MD 21084

Geoff Penske GMC

Faulkner Buick GMC - Trevose

i.g. Burton Lewes Automall

Philadelphia

Used Cars for Sale

Test drive Used GMC Sierra 2500 at home in Wilmington, DE. Search from 89 Used GMC Sierra 2500 cars for sale, including a  2013 GMC Sierra 2500 SLT, a  2015 GMC Sierra 2500 SLE, and a  2017 GMC Sierra 2500 Denali ranging in price from $15,900 to $86,500.

Used GMC Sierra 2500 for Sale in Wilmington, DE - Autotrader

The GMC Sierra 2500 is an intriguing mix of heavy-hitting workhorse and glitzy luxury. With powerful <a href="https://www.autotrader.com/cars-for-sale/diesel/gmc/sierra-2500" target="_blank">diesel</a> or <a href="https://www.autotrader.com/cars-for-sale/gasoline/gmc/sierra-2500" target="_blank">gasoline</a> powertrain options, the Sierra 2500 has immense towing and hauling capacity. The 2500 has well-mannered on-road handling and is equally at home on a dirt ranch road.  The configurations with the Sierra 2500 are nearly endless, with multiple cab sizes, bed lengths, and an array of powertrain choices. Some of the popular Sierra 2500 trims include the <a href="https://www.autotrader.com/cars-for-sale/gmc/sierra-2500/at4" target="_blank">AT4</a>, <a href="https://www.autotrader.com/cars-for-sale/gmc/sierra-2500/denali" target="_blank">Denali</a>, <a href="https://www.autotrader.com/cars-for-sale/gmc/sierra-2500/denali-ultimate" target="_blank">Denali Ultimate</a>, <a href="https://www.autotrader.com/cars-for-sale/gmc/sierra-2500/sle" target="_blank">SLE</a>, and <a href="https://www.autotrader.com/cars-for-sale/gmc/sierra-2500/slt" target="_blank">SLT</a>. Even with fierce competition in the heavy-duty pickup segment, the GMC Sierra 2500 still makes waves. With powerful towing capabilities, a luxurious interior, and refined on-road driving, the Sierra 2500 is a rewarding heavy-duty truck.  

Used GMC Sierra 2500 for Sale Under $30,000

Used GMC Sierra 2500 for Sale Under $20,000

Used GMC Sierra 2500 for Sale Under $15,000

Used GMC Sierra 2500 for Sale Under $5,000

Used GMC Sierra 2500 for Sale Under $25,000

Used GMC Sierra 2500 for Sale Under $10,000

Search from 89 GMC Sierra 2500 for sale, including a Certified 2022 GMC Sierra 2500 AT4 w/ Gooseneck/5TH Wheel Package, a Certified 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package, and a Certified 2024 GMC Sierra 2500 SLT w/ SLT Premium Package ranging in price from $15,900 to $86,500.

Autotrader has 89 GMC Sierra 2500 for sale near Wilmington, DE, including a Certified 2022 GMC Sierra 2500 AT4 w/ Gooseneck/5TH Wheel Package, a Certified 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package, and a Certified 2024 GMC Sierra 2500 SLT w/ SLT Premium Package ranging in price from $15,900 to $86,500.

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Used GMC Sierra 2500 for Sale in Wilmington, DE

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

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