Located at Covert of Hutto, proudly serving Central Texas with quality pre-owned vehicles and exceptional value, this 2021 GMC Sierra 3500HD Denali in White Frost Tricoat combines Duramax diesel power, premium luxury, and advanced towing technology in a serious heavy-duty pickup. This One Owner, Clean Carfax Sierra features the 6.6L Duramax V8 Turbodiesel, leather seating, heated and ventilated front seats, Blind Spot Monitoring, navigation, power sunroof, 4WD, Denali Ultimate Package, Gooseneck/5th Wheel Prep Package, and Technology Package. Call Covert of Hutto at to schedule your VIP appointment or to learn more about this GMC Sierra 3500HD Denali today.Powered by the 6.6L Duramax V8 Turbodiesel and equipped with a 3.42 rear axle ratio, this Sierra 3500HD is built for demanding towing, hauling, and heavy-duty use. Four-wheel drive with a 2-speed active transfer case provides additional traction, while an engine block heater and chrome recovery hooks further support its work-ready capability.Towing technology is a major strength with the Gooseneck/5th Wheel Prep Package, ProGrade Trailering System, integrated trailer brake controller, Hitch Guidance with Hitch View, and In-Vehicle Trailering System App. HD Surround Vision, Bed View Camera, and trailer camera provisions provide multiple perspectives when connecting, maneuvering, or monitoring a compatible trailer.Inside, the Denali Ultimate Package delivers premium comfort with leather seating, heated and ventilated front seats, heated second-row outboard seats, driver memory, wireless charging, and a power sunroof. A power sliding rear window, remote start, keyless open and start, and multiple USB and 120-volt power connections add everyday convenience.The Technology Package adds a multicolor 15-inch Head-Up Display, while navigation and wireless phone projection keep information and compatible smartphone features easily accessible. Bose seven-speaker premium audio and SiriusXM with 360L provide an upgraded entertainment experience.Driver-assistance features include Automatic Emergency Braking, Forward Collision Alert, Following Distance Indicator, Lane Departure Warning, Lane Change Alert with Side Blind Zone Alert, Rear Cross Traffic Alert, Safety Alert Seat, and front and rear park assist.Finished in premium White Frost Tricoat, this Sierra stands out with the signature Denali grille, chrome assist steps, polished exhaust tip, and spray-on bedliner with Denali logo. With its One Owner, Clean Carfax history, Duramax diesel power, advanced trailering equipment, Denali luxury, and extensive camera and safety technology, this 2021 GMC Sierra 3500HD Denali is exceptionally equipped for serious work without sacrificing comfort.Family owned since 1909, Covert of Hutto is proud to serve drivers across Central Texas including Austin (78701, 78705, 78746, 78753, 78758), Hutto (78634), Pflugerville (78660), Round Rock (78681), and Georgetown (78628, 78626). Experience the trusted service and selection that Central Texas drivers have relied on for generations.