About This GMC Sierra 2500HD AT4

2024 GMC Sierra 2500HD AT4
This 2024 GMC Sierra 2500HD AT4 is a heavy-duty diesel pickup that combines serious towing capability with premium off-road equipment and upscale comfort. Finished in Onyx Black over a Jet Black and Kalahari interior, this example comes with a clean Carfax history and no reported accidents or mileage discrepancies.
Under the hood is a 6.6-liter Duramax turbodiesel V8 producing 470 horsepower and an impressive 975 lb-ft of torque, paired with an Allison 10-speed automatic transmission and a 4WD system. This drivetrain delivers exceptional towing strength, confident highway manners, and the low-end torque expected from a modern heavy-duty diesel.
Factory equipment includes the Preferred, Technology, and Gooseneck/5th Wheel packages, adding features such as leather upholstery, heated and ventilated power front seats, heated rear outer seats, a heated steering wheel, adaptive cruise control, a power sunroof, a rear camera mirror, a multi-color head-up display, power-retractable assist steps, and stamped bed holes with a 7-pin trailer harness. Technology highlights include a 12.3-inch digital driver display, a 13.4-inch touchscreen with navigation, Apple CarPlay and Android Auto, a Bose premium sound system, HD surround vision, and a full suite of driver-assistance features including forward collision alert, lane departure warning, and rear cross-traffic alert. Signature AT4 details include LED animated headlights, LED fog lights, and the GMC MultiPro tailgate.
This truck has also been extensively upgraded for both capability and stance. Modifications include 22-inch Hostile wheels wrapped in 35-inch Toyo Open Country M/T tires, a Cognito Motorsports leveling kit, Elka reservoir shocks, aftermarket rear suspension airbags, and Sulastic rear suspension shackles. Additional enhancements include partial paint-protection film on the hood and fenders, tinted windows, and a BAKFlip bed cover.
With its powerful Duramax diesel, high-end interior, advanced towing technology, and thoughtfully selected aftermarket upgrades, this 2024 Sierra 2500HD AT4 stands out as a fully equipped heavy-duty truck ready for work, off-road use, or long-distance travel.