Recent Arrival! Onyx Black 2018 GMC Sierra 2500HD Denali 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel Allison 1000 6-Speed Automatic, 4WD, Cocoa/Dark Sand Leather, 110-Volt AC Power Outlet, 150 Amps Alternator, 4-Wheel Disc Brakes, 7 Speakers, 8" Multi-Color Driver Instrument Info Display, ABS brakes, Adjustable pedals, Air Conditioning, All-Weather Floor Liner (LPO), Alloy wheels, AM/FM radio: SiriusXM, Apple CarPlay/Android Auto, Auto-dimming door mirrors, Auto-Dimming Inside Rear-View Mirror, Auto-dimming Rear-View mirror, Automatic temperature control, Black Frame-Mounted Front Recovery Hooks, Bluetooth® For Phone, Body Color Wheel Arch Moldings (LPO), Body-Color Front Bumper, Bodyside moldings, Bose 7 Speaker Sound System, Brake assist, Bumpers: body-color, CD player, Chrome Bodyside Moldings, Chrome Door Handles, Chrome Power-Adjustable Heated Outside Mirrors, Chrome Recovery Hooks, Chrome wheels, Color-Keyed Carpeted Floor Mats, Color-Keyed Carpeting Floor Covering, Compass, Deep-Tinted Glass, Delay-off headlights, Driver & Front Passenger Vanity Mirror Visors, Driver Alert Package, Driver door bin, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Dual-Zone Automatic Climate Control, Duramax Plus Package, Electric Rear-Window Defogger, Electronic Shift Transfer Case, Electronic Stability Control, Engine Block Heater, Exhaust Brake, Exterior Parking Camera Rear, EZ-Lift & Lower Tailgate, Floor Mounted Console, Forward Collision Alert, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front Full Feature Ventilated Bucket Seats, Front Halogen Fog Lamps, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Garage door transmitter, GMC 4G LTE, GMC Connected Access, Gooseneck/5th Wheel Prep Package, HD Radio, Heated & Ventilated Front Bucket Seats, Heated door mirrors, Heated Driver and Front Passenger Seats, Heated front seats, Heated Leather Wrapped Steering Wheel, Heated Power-Adjustable Outside Mirrors, Heated steering wheel, Heavy-Duty Handling/Trailering Suspension Package, High-Intensity Discharge Headlights, Hill Descent Control, Hitch Package (LPO), Illuminated entry, Lane Departure Warning System, Low tire pressure warning, Manual Tilt-Wheel/Telescoping Steering Column, Memory seat, Navigation System, Occupant sensing airbag, Off-Road Package, OnStar & GMC Connected Services Capable, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather Appointed Seat Trim, Power door mirrors, Power driver seat, Power passenger seat, Power Sliding Rear Window w/Defogger, Power steering, Power Sunroof, Power windows, Power Windows w/Driver Express Up & Down, Power-Adjustable Pedals For Accelerator & Brake, Preferred Equipment Group 5SA, Premium audio system: GMC Infotainment System, Radio: AM/FM/SiriusXM/HD w/Navigation, Rear 60/40 Folding Bench Seat (Folds Up), Rear Body-Color Bumper w/Bumper CornerSteps, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear Wheelhouse Liners, Rear window defroster, Remote Keyless Entry, Remote keyless entry, Remote Locking Tailgate, Remote Vehicle Starter System, Security system, Single Slot CD/MP3 Player, SiriusXM Satellite Radio, Smoked Amber Roof Marker Lamps, Speed control, Speed-sensing steering, Split folding rear seat, Steering Wheel Audio Controls, Steering wheel mounted audio controls, Tachometer, Telescoping steering wheel, Theft Deterrent System (Unauthorized Entry), Tilt steering wheel, Traction control, Trailer Brake Controller, Trailering Equipment, Trip computer, Turn signal indicator mirrors, Ultrasonic Front & Rear Park Assist, Universal Home Remote, Variably intermittent wipers, Ventilated front seats, Voltmeter, Wheels: 20" Chrome Cast Aluminum, Wireless Charging, Z71 Chrome Front Fender Emblems, Allison 1000 6-Speed Automatic, 4WD, Cocoa/Dark S