About This GMC Sierra 3500HD

The 2024 GMC Sierra 3500HD Denali Ultimate Crew Cab 4x4 represents the top tier of GMC's Heavy Duty lineup, pairing maximum towing capability with premium materials and advanced technology. Finished in White Frost Tricoat over an Alpine Umber interior, this example comes with a clean Carfax history report showing no accidents or mileage discrepancies. A window sticker is included in the gallery, and the seller reports no modifications.
Power comes from a 6.6-liter Duramax turbodiesel V8 producing 470 horsepower and 975 lb-ft of torque. It's paired with an Allison 10-speed automatic transmission, routing power to the rear or all four wheels. In this configuration, the Sierra 3500HD offers up to a 7,290-pound maximum payload, a 20,000-pound conventional towing capacity, and a 30,700-pound gross trailer weight rating when properly equipped with a fifth-wheel setup.
Factory equipment includes the Gooseneck/5th Wheel Package with stamped bed holes and a 7-pin trailer harness, dual alternators (220-amp primary and 170-amp auxiliary), an auto-locking rear differential, trailer brake controller, trailer sway control, and an integrated bed view camera. The Multipro Tailgate, spray-on bed liner, power-assist steps with step lights, and power rear sliding window add functionality and convenience. It rides on 18-inch polished aluminum wheels and features LED projector headlights, LED fog lights, and power-folding heated side mirrors.
Inside, the Denali Ultimate trim delivers a luxury-focused cabin with leather upholstery and 16-way heated, ventilated, and power-adjustable front seats, along with heated rear seats and a leather-wrapped steering wheel. Technology highlights include a 12.3-inch digital driver information center, a 13.4-inch color touchscreen with navigation, Apple CarPlay and Android Auto connectivity, a 12-speaker Bose sound system, wireless charging, and remote start. HD Surround Vision and a comprehensive suite of driver-assistance features-such as forward collision alert, automatic emergency braking, trailer side blind zone alert, rear cross-traffic alert, lane departure warning, hill start assist, and front and rear park assist-enhance confidence both on and off the job site.
With its high-output diesel engine, advanced trailering technology, and Denali Ultimate luxury appointments, this 2024 Sierra 3500HD Crew Cab 4x4 is engineered to handle serious work while delivering a refined driving experience.