2021 GMC Sierra 3500HD Denali Crew Cab 4WD

Finished in striking Ebony Twilight Metallic, this 2021 GMC Sierra 3500HD Denali Crew Cab pairs heavy-duty capability with flagship Denali refinement, enhanced by the Denali Black Diamond Edition and Denali Ultimate Package. Inside, rich leather seats set the tone for a premium cabin built to work and travel in equal comfort. A Head Up Display keeps key information in your line of sight, while the Technology Package adds smart visibility features like the Rear Camera Mirror for a clearer view behind you. Navigation, a WiFi hotspot, and premium audio elevate every drive, and the MultiPro Audio System by Kicker turns the bed area into an on-the-go sound system for tailgates or jobsite breaks. A power sunroof brings in light and fresh air, rounding out a cabin that feels as upscale as it is functional.Built for serious towing and demanding conditions, this Sierra includes an exhaust brake, engine block heater, and winter grille cover, along with Northeast emissions requirements. Dual alternators (170-amp and 220-amp) support power-hungry accessories with confidence, while a 3.42 rear axle ratio helps balance strength and efficiency. Trailering is further supported by an auxiliary trailer camera and a Trailer Tire Pressure Monitor System for added peace of mind. Practical upgrades include power retractable assist steps, premium floor liners, a lockable console vault, and rear under-seat storage, plus a front license plate bracket for compliance. With a 12,250-lb GVWR, it's equipped to handle big loads without sacrificing Denali-level polish.