The *2024 GMC Sierra 2500HD AT4* is a 4WD Crew Cab heavy-duty truck equipped with the 6.6L gas V8 and Allison 10-speed automatic, showing 59,044 miles. This *2024 GMC Sierra 2500HD AT4* was well optioned from the factory with the AT4 Premium Plus Package, combining off-road hardware, trailering capability, and upgraded driver tech on a truck that carried a $76,950 original MSRP. Finished in Sterling Metallic over Jet Black with Kalahari accents, it stands out with the AT4-specific cabin and bed-ready utility features.*Highlights include:* * AT4 Premium Plus Package with Adaptive Cruise Control, head-up display, rear camera mirror, power sunroof, and AT4 high-clearance steps * 6.6L gas V8 paired with an Allison 10-speed automatic and 4WD with 2-speed Autotrac transfer case * 13.4-inch GMC infotainment touchscreen with Google built-in capability, navigation capability, wireless Apple CarPlay, and wireless Android Auto * Bose premium sound system and 12.3-inch color driver information center * Trailering package with trailer brake controller, vehicle trailering app, trailer side blind zone alert, and HD Surround Vision * Heated and ventilated front seats, heated rear outboard seats, dual-zone climate control, and driver seat/mirror memory * Spray-on bedliner with AT4 logo, GMC MultiPro tailgate, power fold/extend heated trailer mirrors, and 120V outlets in the bed and instrument panel * Forward collision alert, automatic emergency braking, front pedestrian braking, rear cross traffic alert, and front and rear park assistFor buyers looking at heavy-duty off-road trucks, this *2024 GMC Sierra 2500HD AT4* brings together the right powertrain, premium factory packages, and strong towing-focused equipment. Its feature content, AT4 trim level, and original MSRP position it competitively among well-equipped 2500HD gas trucks.