Used 2021 Gmc Sierra 2500 HD AT4

Because sometimes you need a truck that can crawl over boulders and still look good at valet. Explore the 2021 GMC Sierra 2500HD AT4, the ultimate combination of off-road grit and premium styling. With a beastly Duramax 6.6L V8 Turbodiesel engine under the hood, this truck delivers incredible towing power, low-end torque, and the kind of performance that laughs at steep grades and heavy trailers. The AT4 trim means its factory-lifted and trail-ready, featuring skid plates, off-road suspension, and Rancho shocks built to handle the rough stuff without breaking a sweat. Wrapped in a sleek Onyx Black exterior, it's a head-turner whether it's covered in mud or polished to perfection. From mountain trails to job sites, this Sierra 2500HD doesn't just show up it dominates. Inside, the AT4 is all about comfort and tech, with premium leather seats, a massive touchscreen, wireless charging, and advanced safety features to keep your ride as smart as it is strong. It also comes with the 2-Year/24k Young Auto Group Maintenance Plan, giving you free oil changes, tire rotations, and safety inspections because a truck this capable deserves top-tier care. You'll enjoy the confidence of 4WD, a two-speed transfer case, and GMC's innovative trailering tech that makes hauling even the heaviest loads feel effortless. Whether you're towing, adventuring, or just cruising in style, the Sierra AT4 is designed to do it all and look good doing it. It's not just a truck it's a statement of capability, durability, and all-out presence.

• 4G LTE Wi-Fi hotspot capable
• 6-speaker audio system
• Apple CarPlay capability
• Android Auto capability
• Bluetooth streaming audio
• HD Radio capability
• SiriusXM with 360L trial subscription
• 18" machined aluminum wheels
• Off-Road suspension
• Skid plates
• Rancho shocks
• Spray-on bedliner
• Tailgate with EZ Lift assist, power lock & release
• GMC MultiPro Tailgate
• LED fog lamps
• LED Daytime Running Lamps
• LED signature tail lamps
• High gloss Black mirror caps
• Power folding/extending trailering mirrors
• Rear wheelhouse liners

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