2021 GMC Sierra 3500HD Denali in pristine white with jet black interior combines heavy-duty capability with luxury comfort. This powerful crew cab long bed features a 6.6L V8 Diesel Turbocharged engine paired with a 10-speed automatic transmission and 4WD, delivering both performance and reliability for work or adventure. - Power-Retractable Assist Steps - Engine Block Heater - Denali Ultimate Package - Gooseneck/5th Wheel Prep Package - Heated front seats with ventilation - Premium GMC Infotainment System with Apple CarPlay - HD Surround Vision with Trailer Camera Provisions This well-equipped Sierra 3500HD Denali stands ready for demanding tasks while delivering the refinement you expect from the Denali line. Visit us at Bozard Ford Lincoln in St. Augustine, Florida to experience this exceptional truck firsthand.