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Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package

Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package Tolland CT 06084

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Used 2024 GMC Sierra 2500 Denali Ultimate

Used 2024 GMC Sierra 2500 Denali Ultimate Naugatuck CT 06770

Denali Ultimate

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Used 2019 GMC Sierra 2500 SLT w/ Duramax Plus Package

Used 2019 GMC Sierra 2500 SLT w/ Duramax Plus Package Waterbury CT 06708

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Gooseneck/5th Wheel Prep Package

Snow Plow Prep/Camper Package

Used 2024 GMC Sierra 2500 Denali

Used 2024 GMC Sierra 2500 Denali Watertown CT 06798

Used 2024 GMC Sierra 2500 Denali Ultimate Pawling NY 12564

AT4 Preferred Package

Driver Alert Package I

Driver Alert Package II

Used 2020 GMC Sierra 2500 AT4 w/ Technology Package

Used 2020 GMC Sierra 2500 AT4 w/ Technology Package Watertown CT 06798

Used 2024 GMC Sierra 2500 AT4X

Used 2024 GMC Sierra 2500 AT4X Pawling NY 12564

AT4X

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Used 2013 GMC Sierra 2500 Denali w/ Suspension Package, Off-Road

Used 2013 GMC Sierra 2500 Denali w/ Suspension Package, Off-Road Manchester CT 06040

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Sierra HD Pro Safety Plus Package

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X31 Off-Road Package

New 2025 GMC Sierra 2500 SLE w/ SLE Value Package;

New 2025 GMC Sierra 2500 SLE w/ SLE Value Package; Bristol CT 06010

Used 2024 GMC Sierra 2500 AT4 w/ AT4 Preferred Package

Used 2024 GMC Sierra 2500 AT4 w/ AT4 Preferred Package Watertown CT 06798

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 Waterbury CT 06708

Used 2024 GMC Sierra 2500 AT4X Danbury CT 06810

Used 2017 GMC Sierra 2500 Denali w/ Duramax Plus Package

Used 2017 GMC Sierra 2500 Denali w/ Duramax Plus Package Mount Sinai NY 11766

New 2025 GMC Sierra 2500 SLE

New 2025 GMC Sierra 2500 SLE Mystic CT 06355

Denali Reserve Package

Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package

Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package Danbury CT 06810

Used 2023 GMC Sierra 2500 Denali

Used 2023 GMC Sierra 2500 Denali Waterbury CT 06708

SLE Preferred Package

Convenience Package

LPO, On The Job Package

Used 2013 GMC Sierra 2500 SLE w/ SLE Preferred Package

Used 2013 GMC Sierra 2500 SLE w/ SLE Preferred Package Waterbury CT 06708

Fullsize Regular Cab

Used 2006 GMC Sierra 2500 HD Regular Cab Work Truck Pickup 2D 8 ft

Used 2006 GMC Sierra 2500 W/T w/ Snow Plow Prep Package

Used 2006 GMC Sierra 2500 W/T w/ Snow Plow Prep Package Huntington Station NY 11746

Used 2003 GMC Sierra 2500 HD Crew Cab SLT Pickup 4D 8 ft

SLT Preferred Equipment Group

Skid Plate Package

Used 2003 GMC Sierra 2500 SLT w/ SLT Preferred Equipment Group

Used 2003 GMC Sierra 2500 SLT w/ SLT Preferred Equipment Group Ridge NY 11961

Used 2017 GMC Sierra 2500 SLE

Used 2017 GMC Sierra 2500 SLE East Hartford CT 06108

Used 2017 GMC Sierra 2500 HD Double Cab SLE Pickup 4D 6 1/2 ft

HD SLE Preferred Plus Package

Used 2017 GMC Sierra 2500 SLE w/ HD SLE Preferred Plus Package

Used 2017 GMC Sierra 2500 SLE w/ HD SLE Preferred Plus Package Bedford NY 10506

Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package South Windsor CT 06074

SLE Convenience Package

Used 2015 GMC Sierra 2500 SLE w/ SLE Preferred Package

Used 2015 GMC Sierra 2500 SLE w/ SLE Preferred Package Riverhead NY 11901

Used 2019 GMC Sierra 2500 SLE w/ SLE Preferred Package

Used 2019 GMC Sierra 2500 SLE w/ SLE Preferred Package Naugatuck CT 06770

Used 2015 GMC Sierra 2500 4x4 Double Cab

Used 2015 GMC Sierra 2500 4x4 Double Cab Huntington Station, Ny 117 NY 11746

4x4 Double Cab

Gooseneck/5TH Wheel Package

Used 2020 GMC Sierra 2500 Denali w/ Denali Ultimate Package Naugatuck CT 06770

Used 2022 GMC Sierra 2500 SLE w/ SLE Convenience Package

Used 2022 GMC Sierra 2500 SLE w/ SLE Convenience Package Danbury CT 06810

Used 2018 GMC Sierra 2500 Denali

Used 2018 GMC Sierra 2500 Denali Berlin CT 06037

Used 2015 GMC Sierra 2500 SLT

Used 2015 GMC Sierra 2500 SLT New Britain CT 06051

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Hartford and New Haven

Used Cars for Sale

Test drive Used GMC Sierra 2500 at home in Naugatuck, CT. Search from 67 Used GMC Sierra 2500 cars for sale, including a  2003 GMC Sierra 2500 SLT, a  2006 GMC Sierra 2500 W/T, and a  2013 GMC Sierra 2500 Denali ranging in price from $5,750 to $84,799.

Used GMC Sierra 2500 for Sale in Naugatuck, CT - 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 67 GMC Sierra 2500 for sale, including a Used 2003 GMC Sierra 2500 SLT w/ SLT Preferred Equipment Group, a Used 2006 GMC Sierra 2500 W/T w/ Snow Plow Prep Package, and a Used 2013 GMC Sierra 2500 Denali w/ Suspension Package, Off-Road ranging in price from $5,750 to $84,799.

Autotrader has 67 GMC Sierra 2500 for sale near Naugatuck, CT, including a Used 2003 GMC Sierra 2500 SLT w/ SLT Preferred Equipment Group, a Used 2006 GMC Sierra 2500 W/T w/ Snow Plow Prep Package, and a Used 2013 GMC Sierra 2500 Denali w/ Suspension Package, Off-Road ranging in price from $5,750 to $84,799.

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Used GMC Sierra 2500 for Sale in Naugatuck, CT

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2013 GMC Sierra 2500

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