One-owner 2024 GMC Sierra 2500HD AT4 — 4WD, 61,637 miles. Finished in rugged Gray with Jet Black leather interior and Kalahari accents, this heavy-duty AT4 blends luxury, capability, and modern tech for work or weekend adventures. Key features: - POWERTRAIN: Duramax 6.6L Turbo-Diesel V8 (B20-compatible) paired with Allison 10-speed automatic transmission for confident towing and highway performance. - TOWING/HAULING: Gooseneck / 5th wheel prep with hitch platform, high-idle switch, exhaust brake, and 220-amp alternator — set up for serious jobs. - OFF-ROAD & CONVENIENCE: AT4 off-road trim with power-retractable assist steps, power sunroof, winter grille cover, smoked amber roof marker lamps, and front license plate kit with incandescent lighting. - TECHNOLOGY & COMFORT: 13.4" diagonal premium GMC infotainment with Google built-in, multicolor 15" diagonal head-up display, rear camera mirror, adaptive cruise control, Universal Home Remote, power rear sliding window with defogger, and audio/navigation integration. - PACKAGES: AT4 Premium Plus, AT4 Preferred, and Technology packages enhance luxury, capability, and safety. - COLD/UTILITY OPTIONS: Engine block heater and heavy-duty electricals for demanding environments. This Sierra AT4 offers the durability expected from GMC’s heavy-duty lineup with upscale touches inside and out. Clean one-owner history and well-equipped for towing, hauling, and comfortable long drives. Contact us to schedule a test drive and see this truck in person.
This 2024 GMC Sierra 2500HD AT4 is available for drivers in Sioux Falls, Brandon, Harrisburg, Tea ...