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New 2024 GMC Sierra 2500 Pro w/ 1SA Pro Safety Plus Package

New 2024 GMC Sierra 2500 Pro w/ 1SA Pro Safety Plus Package Tustin CA 92782

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

New 2025 GMC Sierra 2500 Pro w/ 1SA Pro Safety Plus Package Tustin CA 92782

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Used 2025 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

Used 2025 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package San Juan Capistrano CA 92675

Denali Reserve Package

New 2025 GMC Sierra 2500 Denali w/ Denali Reserve Package

New 2025 GMC Sierra 2500 Denali w/ Denali Reserve Package Tustin CA 92782

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Used 2021 GMC Sierra 2500 Denali w/ Denali Ultimate Package

Used 2021 GMC Sierra 2500 Denali w/ Denali Ultimate Package Temecula CA 92591

Max Trailering Package

Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package

Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package Tustin CA 92782

Used 2022 GMC Sierra 2500 HD Regular Cab SLE Pickup 2D 8 ft

SLE Convenience Package

Driver Alert Package I

Used 2022 GMC Sierra 2500 SLE w/ SLE Convenience Package

Used 2022 GMC Sierra 2500 SLE w/ SLE Convenience Package Oceanside CA 92057

Heavy Duty Front Spring/Camper Package

Used 2024 GMC Sierra 2500 Denali Ultimate w/ Max Trailering Package

Used 2024 GMC Sierra 2500 Denali Ultimate w/ Max Trailering Package Tustin CA 92782

Denali Ultimate

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Technology Package

Gooseneck/5TH Wheel Package

X31 Off-Road Package

Used 2020 GMC Sierra 2500 SLT w/ SLT Premium Plus Package

Used 2020 GMC Sierra 2500 SLT w/ SLT Premium Plus Package National City CA 91950

Used 2022 GMC Sierra 2500 Denali w/ Denali Ultimate Package

Used 2022 GMC Sierra 2500 Denali w/ Denali Ultimate Package Laguna Niguel CA 92677

Used 2022 GMC Sierra 2500 Pro w/ Convenience Package

Used 2022 GMC Sierra 2500 Pro w/ Convenience Package Murrieta CA 92562

Used 2016 GMC Sierra 2500 HD Crew Cab SLT Pickup 4D 8 ft

Duramax Plus Package

Driver Alert Package

LPO, Cargo Convenience Package

Used 2016 GMC Sierra 2500 SLT w/ Duramax Plus Package

Used 2016 GMC Sierra 2500 SLT w/ Duramax Plus Package Temecula CA 92591

Used 2007 GMC Sierra 2500 HD Crew Cab SLT Pickup 4D 6 1/2 ft

Z71 Off-Road Package

EZ-Lift Tailgate Package

Used 2007 GMC Sierra 2500 SLT w/ Z71 Off-Road Package

Used 2007 GMC Sierra 2500 SLT w/ Z71 Off-Road Package Alpine CA 91901

Used 2023 GMC Sierra 2500 Denali w/ Denali Ultimate Package

Used 2023 GMC Sierra 2500 Denali w/ Denali Ultimate Package Escondido CA 92029

Used 2021 GMC Sierra 2500 Denali w/ Technology Package

Used 2021 GMC Sierra 2500 Denali w/ Technology Package Carlsbad CA 92008

SLE Value Package;

Sierra HD Pro Safety Plus Package

New 2026 GMC Sierra 2500 SLE w/ SLE Value Package;

New 2026 GMC Sierra 2500 SLE w/ SLE Value Package; Tustin CA 92782

Remote Start Package

Heated Package

Used 2024 GMC Sierra 2500 SLE w/ SLE Convenience Package

Used 2024 GMC Sierra 2500 SLE w/ SLE Convenience Package Tustin CA 92782

Used 2025 GMC Sierra 2500 Denali Ultimate

Used 2025 GMC Sierra 2500 Denali Ultimate Escondido CA 92029

Certified

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

Certified 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package Escondido CA 92029

Used 2024 GMC Sierra 2500 Denali w/ Denali Reserve Package Lake Elsinore CA 92530

Suspension Package, Off-Road

Used 2015 GMC Sierra 2500 Denali w/ Duramax Plus Package

Used 2015 GMC Sierra 2500 Denali w/ Duramax Plus Package Temecula CA 92590

Used 2024 GMC Sierra 2500 SLE w/ SLE Value Package;

Used 2024 GMC Sierra 2500 SLE w/ SLE Value Package; El Cajon CA 92021

Preferred Package

Certified 2025 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

Certified 2025 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package San Diego CA 92108

AT4 Premium Package

Driver Alert Package II

Used 2020 GMC Sierra 2500 AT4 w/ AT4 Premium Package

Used 2020 GMC Sierra 2500 AT4 w/ AT4 Premium Package Tustin CA 92782

Used 2022 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package

Used 2022 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package Tustin CA 92782

Used 2023 GMC Sierra 2500 SLE w/ SLE Convenience Package

Used 2023 GMC Sierra 2500 SLE w/ SLE Convenience Package Poway CA 92064

Flexible Fuel

Used 2016 GMC Sierra 2500 HD Crew Cab SLE Pickup 4D 8 ft

SLE Preferred Package

Used 2016 GMC Sierra 2500 SLE w/ SLE Preferred Package

Used 2016 GMC Sierra 2500 SLE w/ SLE Preferred Package Carlsbad CA 92008

Used 2015 GMC Sierra 2500 HD Crew Cab Denali Pickup 4D 6 1/2 ft

Used 2015 GMC Sierra 2500 Denali w/ Duramax Plus Package Chula Vista CA 91913

Fullsize Extended Cab

Used 2004 GMC Sierra 2500 HD Extended Cab SLE Pickup 4D 6 1/2 ft

Used 2004 GMC Sierra 2500 SLE

Used 2004 GMC Sierra 2500 SLE Lake Elsinore CA 92530

Manual

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

Used 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package National City CA 91950

Used 2023 GMC Sierra 2500 AT4

Used 2023 GMC Sierra 2500 AT4 Temecula CA 92591

New 2026 GMC Sierra 2500 AT4

New 2026 GMC Sierra 2500 AT4 National City CA 91950

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Used Cars for Sale

Test drive Used GMC Sierra 2500 at home in Oceanside, CA. Search from 40 Used GMC Sierra 2500 cars for sale, including a  2004 GMC Sierra 2500 SLE, a  2007 GMC Sierra 2500 SLT, and a  2015 GMC Sierra 2500 Denali ranging in price from $5,000 to $91,236.

Used GMC Sierra 2500 for Sale in Oceanside, CA - 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 40 GMC Sierra 2500 for sale, including a Certified 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package, a Certified 2025 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package, and a Used 2004 GMC Sierra 2500 SLE ranging in price from $5,000 to $91,236.

Autotrader has 40 GMC Sierra 2500 for sale near Oceanside, CA, including a Certified 2024 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package, a Certified 2025 GMC Sierra 2500 AT4 w/ AT4 Premium Plus Package, and a Used 2004 GMC Sierra 2500 SLE ranging in price from $5,000 to $91,236.

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Used GMC Sierra 2500 for Sale in Oceanside, CA

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Used 2024 GMC Sierra 2500 SLE w/ SLE Convenience Package

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