2026 GMC Sierra 2500HD

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2026 GMC Sierra 2500HD AT4X
4x4 AT4X 4dr Crew Cab SB
^$90,000 ^$1,178/mo*
5,507
miles
Engine:
6.6L
Drivetrain:
4X4
Days Listed
32
Price
$6,277 below avg.
Mileage
4,779 miles above avg.
Features: Navigation, Moonroof, Leather Seats, One Owner, Apple Carplay, Android Auto, Bluetooth, Heads-up Display, Power Seats, Aluminum Wheels, Low Price, Keyless Entry, Chrome, Traction Control, SiriusXM, Daytime Running Lights, Heated Mirrors, Steering Wheel Controls, MP3, CD
Video Walkarounds
Driveway Delivery
Hickory, NC
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2026 GMC Sierra 2500HD
AT4
^$82,970
^$85,970
^$1,086/mo*
485
miles
Engine:
6.6L V8
Drivetrain:
4X4
Days Listed
21
Mileage
423 miles above avg.
Features: Apple Carplay, Android Auto, Power Seats, Alloy Wheels, Fully Loaded, Keyless Entry, Non-Smoker, Chrome, Traction Control, Electronic Stability Control, On-Star, Steering Wheel Controls, CD, Airbag, Center Console, Front Bucket seats, Power Windows, ABS
Kennesaw, GA
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2026 GMC Sierra 2500HD
AT4
^$84,127 ^$1,101/mo*
165
miles
Engine:
Duramax 6.6L Biodiesel Turbo V8 470hp 975ft. lbs.
Drivetrain:
4X4
Days Listed
6
Mileage
103 miles above avg.
Features: Diesel
Fond Du Lac, WI
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2026 GMC Sierra 2500HD
Denali Ultimate
^$89,991 ^$1,178/mo*
2,348
miles
Engine:
Duramax 6.6L Biodiesel Turbo V8 470hp 975ft. lbs.
Drivetrain:
4X4
Days Listed
49
Mileage
2,286 miles above avg.
Features: Navigation, One Owner, Warranty, Bluetooth, Power Seats, Automatic Climate Control, Diesel, Chrome, Traction Control, SiriusXM, On-Star, Daytime Running Lights, CD, Airbag, Center Console, Power Windows, Cruise Control, ABS
Fond Du Lac, WI
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2026 GMC Sierra 2500HD AT4X
4x4 AT4X 4dr Crew Cab SB
6,234
miles
Engine:
Duramax 6.6L V8 Turbodiesel
Drivetrain:
4X4
Days Listed
4
Mileage
5,506 miles above avg.
Features: Moonroof, Sunroof, Apple Carplay, Android Auto, Heads-up Display, Power Seats, Alloy Wheels, Diesel, Keyless Entry, Chrome, Traction Control, Electronic Stability Control, On-Star, Steering Wheel Controls, CD, Airbag, Center Console, Front Bucket seats, Power Windows, ABS
Driveway Delivery
Virtual Financing
Online Paperwork
Cullman, AL
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2026 GMC Sierra 2500HD Overview

The 2026 GMC Sierra 2500HD is a dominant player in the heavy-duty truck segment. Available in five trim levels – Sierra, SLE, SLT, AT4, and Denali – it boasts formidable towing and hauling capabilities. This truck is powered by two engine choices that include a standard 6.6L V8 with 401 horsepower and an available 6.6L Duramax Turbo-Diesel V8 that impressive 445 horsepower. A 6-speed automatic transmission is paired with the standard engine while the diesel gets a 10-speed automatic. The Sierra 2500HD can be had in either rear-wheel or four-wheel drive configurations. Key safety features include Lane Change Alert with Side Blind Zone Alert, Forward Collision Alert, and Rear Cross Traffic Alert. The infotainment system includes an available 8” diagonal GMC Infotainment System with Navigation, and supports both Apple CarPlay and Android Auto.

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2026 GMC Sierra 2500HD For Sale