2024 GMC Sierra 2500HD AT4 Duramax – Luxury Dealer Description
Presenting a highly optioned and professionally enhanced 2024 GMC Sierra 2500HD AT4, powered by the legendary 6.6L Duramax Turbodiesel V8 paired with the Allison 10-speed automatic transmission and 4WD capability. Delivering an impressive 470 horsepower and 975 lb-ft of torque, this heavy-duty truck blends uncompromising strength with premium refinement and modern luxury.
Finished in Onyx Black over a Jet Black/Kalahari interior, this AT4 is equipped with a factory selection of highly desirable packages including the Preferred, Technology, and Gooseneck/5th Wheel Package—positioning it as a true high-spec tow-ready luxury utility platform.
Inside, the cabin is appointed with leather upholstery, heated and ventilated front seating, heated rear outboard seats, a heated steering wheel, dual-zone climate control, Bose premium audio, navigation, and a full digital cockpit featuring a 12.3-inch driver display paired with a 13.4-inch infotainment touchscreen. Advanced driver assistance systems include HD Surround Vision, adaptive cruise control, lane departure warning, forward collision alert, and rear cross-traffic alert.
The exterior showcases GMC’s signature MultiPro tailgate, LED animated lighting, assist steps, power sunroof, and a factory-stamped Gooseneck/5th Wheel setup—balancing utility with premium design language.
This example has been tastefully upgraded with performance-oriented and luxury-enhancing modifications, including 22-inch Hostile wheels wrapped in 35-inch Toyo Open Country M/T tires, a Cognito Motorsports leveling kit, Elka reservoir shocks, rear suspension airbags, Sulastic shackles, and a BAKFlip tonneau cover. Additional enhancements include partial paint protection film on key front-end areas and professionally tinted windows, elevating both presence and protection.
This Sierra 2500HD AT4 stands as a premium-grade, fully capable diesel truck—engineered for serious towing and off-road performance while maintaining a refined, high-end driving experience.
