Recent Arrival! Sierra 2500HD Denali Ultimate, Duramax 6.6L V8 Turbodiesel, 10-Speed Automatic, 4WD, Onyx Black, Alpine Umber Leather, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 Charge/Data USB Ports Inside Center Console, 2 Charge-Only Rear USB Ports, 2 USB Ports, 220-Amp Alternator, 2-Speed Active Transfer Case, Bed View Camera w/2 Trailer Camera Provisions, Block heater, Bose Premium Series 12-Speaker System, Deep-Tinted Glass, Driver Memory, Electric Rear-Window Defogger, Floor-Mounted Center Console, Front Rain-Sensing Wipers, GMC Connected Access Capable, Gooseneck/5th Wheel Prep Package, HD Surround Vision, Heads-Up Display, Heated 2nd Row Outboard Seats, Heated door mirrors, Heated Driver & Front Outboard Passenger Seats, Heated steering wheel, Hill Descent Control, Hitch Guidance w/Hitch View, Illuminated entry, Inside Rearview Auto-Dimming Rear Camera Mirror, Integrated Trailer Brake Controller, IntelliBeam Automatic High Beam On/Off, In-Vehicle Trailering System App, Keyless Open & Start, Lane Departure Warning System, LED Cargo Area Lighting, LED Smoked Amber Roof Marker Lamps, Manual Tilt-Wheel/Telescoping Steering Column, Multicolor 15Diagonal Head-Up Display, Off-Road Suspension, OnStar & GMC Connected Services Capable, Power Front Passenger Windows w/Express Up/Down, Power Sliding Rear Window w/Defogger, Power Sunroof, Preferred Equipment Group 5SB, Push Button Start, Rain sensing wipers, Rear Cross Traffic Alert, Rear Wheelhouse Liners, Rear window defroster, Remote Vehicle Starter System, Safety Alert Seat, Signature Denali Grille in Vadar Chrome, SiriusXM w/360L, Steering Wheel Audio Controls, Technology Package, Trailer Cam Provisions & Trailer Viewing Software, Trailer Side Blind Zone Alert, Trailer Tire Pressure Monitor Sensors, Turn signal indicator mirrors, Ultrasonic Front & Rear Park Assist, Unauthorized Entry Theft-Deterrent System, Universal Home Remote, Ventilated Driver & Front Passenger Seats, Wheels: