2021 GMC Sierra 3500

6.6L V8 Turbo Diesel Engine, ALTERNATOR, 220 AMPS, Aluminum/Alloy Wheels, ASSIST STEPS, POWER-RETRACTABLE, BLACK, AT4 PREFERRED EQUIPMENT GROUP, AT4 PREFERRED PACKAGE, AT4 PREMIUM PLUS PACKAGE, AUTOMATIC EMERGENCY BRAKING, BED VIEW CAMERA, BOSE SOUND SYSTEM, PREMIUM 7-SPEAKER SYSTEM, Driver Alert 1 Pkg., DRIVER ALERT PACKAGE I, DRIVER ALERT PACKAGE II, DRIVER INFORMATION CENTER, ENHANCED, 8'' DIAGONAL MULTI-COLOR DIGITAL DISPLAY, EMISSIONS, FEDERAL REQUIREMENTS, ENGINE BLOCK HEATER, ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE, EXHAUST BRAKE, FOLLOWING DISTANCE INDICATOR, FORWARD COLLISION ALERT, FRONT AND REAR PARK ASSIST, ULTRASONIC, GMC MultiPro Tailgate, GOOSENECK / 5TH WHEEL PACKAGE, GOOSENECK / 5TH WHEEL PREP PACKAGE, GVWR, 12,100 LBS. (5488 KG) WITH SINGLE REAR WHEELS, HD SURROUND VISION WITH TWO TRAILER VIEW CAMERA PROVISIONS, HIGH IDLE SWITCH, INTELLIBEAM, AUTOMATIC HIGH BEAM ON/OFF, JET BLACK WITH KALAHARI ACCENTS, PERFORATED FRONT LEATHER SEATING SURFACES, LAMPS, SMOKED AMBER LED ROOF MARKER, (LED), LANE CHANGE ALERT WITH SIDE BLIND ZONE ALERT, LANE DEPARTURE WARNING, LICENSE PLATE KIT, FRONT, MULTI-COLOR 15'' DIAGONAL HEAD-UP DISPLAY, Power Driver's Seat, Power Sunroof, Pro Grade Trailering Pkg., REAR AXLE, 3.42 RATIO, REAR CAMERA MIRROR, REAR CROSS TRAFFIC ALERT, Rear Parking Sensors, SAFETY ALERT SEAT, SUMMIT WHITE, SUNROOF, POWER, TECHNOLOGY PACKAGE, Towing/Camper Pkg, TRAILER TIRE PRESSURE MONITOR SENSORS, TRANSMISSION, ALLISON 10-SPEED AUTOMATIC, Univ Garage Door Opener, UNIVERSAL HOME REMOTE, WHEELS, 20'' (50.8 CM) MACHINED ALUMINUM, WINDOW, POWER, REAR SLIDING, WINTER GRILLE COVER, WIRELESS CHARGING, X31 Off-Road Pkg., Four wheel drive,Steering wheel audio controls,Door handles, body-color,Audio system feature, 6-speaker system,Steering wheel, leather-wrapped,Remote vehicle starter system,Floor covering, color-keyed carpeting,Steering wheel, heated,HD radio,Hill descent control,Trailer brake controller, integrated,Cooling, external engine oil cooler,Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door,StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist,Single rear wheels,Glass, deep-tinted,Cooling, auxiliary external transmission oil cooler,CornerStep, rear bumper,Wheelhouse liners, rear,Theft-deterrent system, unauthorized entry,Air conditioning, dual-zone automatic climate control,Cruise control, steering wheel-mounted,Steering column, manual Tilt-Wheel and telescoping,Tailgate and bed rail protection caps, top,Bumper, rear body-color with bumper CornerSteps,Bumper, front, body-color lower,Air vents, rear,Rear seat reminder,Seats, heated second row outboard seats,Airbags, dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Inclu