O'NEIL GMC INC

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A Car 4 You LLC

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Spider

Fullsize Crew Cab

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AWD4WD

8-Cylinder

Gasoline

Certified

Used

Sierra 3500

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Certified 2022 GMC Sierra 3500 AT4

Certified 2022 GMC Sierra 3500 AT4 Warminster PA 18974

Automatic

8-Cylinder Turbo

Diesel

Duramax Plus Package

Snow Plow Prep Package

Suspension Package, Off-Road

Used 2016 GMC Sierra 3500 Denali w/ Duramax Plus Package

Used 2016 GMC Sierra 3500 Denali w/ Duramax Plus Package Mercerville NJ 08619

Denali

Used 2019 GMC Sierra 3500 Denali w/ Duramax Plus Package

Used 2019 GMC Sierra 3500 Denali w/ Duramax Plus Package Fairless Hills PA 19030

Gooseneck/5TH Wheel Prep Package

Used 2022 GMC Sierra 3500 Denali

Used 2022 GMC Sierra 3500 Denali Elkton MD 21921

Get AutoCheck Vehicle History

Used 2024 GMC Sierra 3500 Denali Ultimate

Used 2024 GMC Sierra 3500 Denali Ultimate Ewing NJ 08638

Denali Ultimate

X31 Off-Road and Protection Package

Snow Plow Prep/Camper Package

Used 2023 GMC Sierra 3500 SLT

Used 2023 GMC Sierra 3500 SLT Lumberton NJ 08048

Denali Reserve Package

Used 2024 GMC Sierra 3500 Denali w/ Denali Reserve Package

Used 2024 GMC Sierra 3500 Denali w/ Denali Reserve Package Mount Holly NJ 08060

Denali Ultimate Package

Certified 2022 GMC Sierra 3500 Denali w/ Denali Ultimate Package

Certified 2022 GMC Sierra 3500 Denali w/ Denali Ultimate Package Warminster PA 18974

Technology Package

LPO, Cargo Convenience Package

Used 2021 GMC Sierra 3500 Denali w/ Technology Package

Used 2021 GMC Sierra 3500 Denali w/ Technology Package Fairless Hills PA 19030

Used 2020 GMC Sierra 3500 HD Crew Cab AT4 Pickup 4D 6 1/2 ft

AT4 Premium Package

Gooseneck/5TH Wheel Package

Driver Alert Package II

Used 2020 GMC Sierra 3500 AT4 w/ AT4 Premium Package

Used 2020 GMC Sierra 3500 AT4 w/ AT4 Premium Package Bethlehem PA 18020

Used 2020 GMC Sierra 3500 Denali

Used 2020 GMC Sierra 3500 Denali Mercerville NJ 08619

Used 2015 GMC Sierra 3500 Denali

Used 2015 GMC Sierra 3500 Denali Mount Holly NJ 08060

SLE Convenience Package

X31 Off-Road Package

Used 2022 GMC Sierra 3500 SLE w/ SLE Convenience Package

Used 2022 GMC Sierra 3500 SLE w/ SLE Convenience Package Mount Holly NJ 08060

Certified 2025 GMC Sierra 3500 Denali w/ Denali Reserve Package

Certified 2025 GMC Sierra 3500 Denali w/ Denali Reserve Package Newark DE 19711

Used 2024 GMC Sierra 3500 Denali

Used 2024 GMC Sierra 3500 Denali Doylestown PA 18902

Duramax 6.6L V-8 diesel direct injection, interco>

Gooseneck/5TH Wheel Prep Package -- Hitch Platform to Accept Gooseneck or Fifth Wheel Hitch.

LPO, Hitch Package, Gooseneck Ball and Chain Tiedown Kit With Case

Certified 2017 GMC Sierra 3500 Denali w/ Duramax Plus Package

Certified 2017 GMC Sierra 3500 Denali w/ Duramax Plus Package Boyertown PA 19512

SLT Premium Package

New 2025 GMC Sierra 3500 SLT w/ SLT Premium Package

New 2025 GMC Sierra 3500 SLT w/ SLT Premium Package Shillington PA 19607

Used 2023 GMC Sierra 3500 Denali w/ Denali Ultimate Package

Used 2023 GMC Sierra 3500 Denali w/ Denali Ultimate Package Shillington PA 19607

LPO, Hitch Package

Certified 2022 GMC Sierra 3500 Denali w/ Denali Ultimate Package Newark DE 19711

LPO, GMC Protection Package

Used 2024 GMC Sierra 3500 Denali Ultimate w/ LPO, GMC Protection Package

Used 2024 GMC Sierra 3500 Denali Ultimate w/ LPO, GMC Protection Package Doylestown PA 18902

Flexible Fuel

SLE Preferred Package

Used 2016 GMC Sierra 3500 SLE w/ SLE Preferred Package

Used 2016 GMC Sierra 3500 SLE w/ SLE Preferred Package New Holland PA 17557

Used 2023 GMC Sierra 3500 Denali w/ Denali Ultimate Package Doylestown PA 18902

Used 2024 GMC Sierra 3500 Denali w/ Technology Package

Used 2024 GMC Sierra 3500 Denali w/ Technology Package Doylestown PA 18902

Sierra Convenience Package

Used 2018 GMC Sierra 3500 4x4 Regular Cab w/ Sierra Convenience Package

Used 2018 GMC Sierra 3500 4x4 Regular Cab w/ Sierra Convenience Package Toms River NJ 08753

4x4 Regular Cab

Used 2023 GMC Sierra 3500 Denali w/ Denali Ultimate Package Elkton MD 21921

Used 2024 GMC Sierra 3500 Denali w/ Denali Reserve Package Ewing NJ 08638

Geoff Penske GMC

Philadelphia

Used Cars for Sale

Test drive Used GMC Sierra 3500 at home in Philadelphia, PA. Search from 25 Used GMC Sierra 3500 cars for sale, including a  2015 GMC Sierra 3500 Denali, a  2016 GMC Sierra 3500 Denali, and a  2016 GMC Sierra 3500 SLE ranging in price from $36,900 to $88,995.

Used GMC Sierra 3500 for Sale in Philadelphia, PA - Autotrader

Used GMC Sierra 3500 for Sale Under $10,000

Used GMC Sierra 3500 for Sale Under $20,000

Search from 25 GMC Sierra 3500 for sale, including a Certified 2017 GMC Sierra 3500 Denali w/ Duramax Plus Package, a Certified 2022 GMC Sierra 3500 AT4, and a Certified 2022 GMC Sierra 3500 Denali w/ Denali Ultimate Package ranging in price from $36,900 to $88,995.

Autotrader has 25 GMC Sierra 3500 for sale near Philadelphia, PA, including a Certified 2017 GMC Sierra 3500 Denali w/ Duramax Plus Package, a Certified 2022 GMC Sierra 3500 AT4, and a Certified 2022 GMC Sierra 3500 Denali w/ Denali Ultimate Package ranging in price from $36,900 to $88,995.

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Used GMC Sierra 3500 for Sale in Philadelphia, PA

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25 Results

Used 2022 GMC Sierra 3500 Denali

Certified 2022 GMC Sierra 3500 AT4

Used 2016 GMC Sierra 3500 Denali