- Engine; Duramax 6.6L Turbo-Diesel V8; B20-Diesel Compatible
 - Wheels; 20" (50.8 Cm) Machined Aluminum
 - Gooseneck / 5Th Wheel Package
 - Leather Seats
 - Snow Plow Prep/Camper Package
 - Bed View Camera
 - High Idle Switch
 - Alternator; 220 Amps
 - Upfitter Switch Kit; (5)
 - Engine Block Heater
 - Keyless Start
 - Lamps; Smoked Amber Led Roof Marker; (Led)
 - Cooled Front Seat(S)
 - At4 Preferred Equipment Group
 - Audio System; Premium Gmc Infotainment System With 8" Diagonal Color Touch-Screen
 - Emissions; Federal Requirements
 - Exhaust Brake
 - Gooseneck / 5Th Wheel Prep Package
 - Gvwr; 12;100 Lbs. (5488 Kg) With Single Rear Wheels
 - Jet Black With Kalahari Accents; Perforated Front Leather Seating Surfaces
 - License Plate Kit; Front
 - Rear Axle; 3.42 Ratio
 - Seats; Front Bucket With Center Console
 - Summit White
 - Tires; Lt275/65R20 All-Terrain; Blackwall
 - Transmission; Allison 10-Speed Automatic
 - Winter Grille Cover
 
2021 GMC Sierra 3500HD AT4 | Duramax Diesel | 1-Owner Clean Carfax Available Now at AutoNation Dodge Ram Broadway 5600 S Broadway, Littleton, CO 80121 720.842.7793 Not every truck is born equal. Some are built to haul weight . This one was built to carry kingdoms. This 2021 GMC Sierra 3500HD AT4 is more than a heavy-duty pickupits a weapon of endurance, a fortress on wheels, and a command center for every journey. With only 87,925 miles , a 1-owner clean Carfax , and a legacy of rugged refinement, this AT4 is ready to take its place as your battle-tested ally. Performance & Power (The Warriors Arsenal) Duramax 6.6L Turbo-Diesel V8 $9,890 option, unmatched torque & stamina Allison 10-Speed Automatic Transmission X31 Off-Road Suspension w/ Rancho Shocks & Skid Plates Auto-Locking Rear Differential 2-Speed Autotrac Transfer Case Gooseneck / 5th Wheel Prep Package towing dominance with stamped bed holes, harness, & bed-view camera Snow Plow Prep / Camper Package built to command winter & wilderness alike 12,100 GVWR rating engineered for true heavy-duty conquest Technology & Control (The Commanders Edge) ProGrade Trailering System + Trailer Brake Controller Digital Variable Steering Assist for precision under load 220-Amp Alternator + Upfitter Switches (5) for gear & upgrades 120V Power Outlets (Cab & Bed) worksite ready GMC Premium Infotainment System w/ 8 HD Touchscreen Wireless Apple CarPlay & Android Auto 4G LTE Wi-Fi Capable + OnStar Services SiriusXM Ready Interior Luxury (The Kings Quarters) Heated & Ventilated Front Seats + Heated Rear Outboard Seats 10-Way Power Front Buckets w/ Memory Dual-Zone Climate Control Heated, Leather-Wrapped Steering Wheel 60/40 Split-Folding Rear Seat w/ Storage Package Premium Floor Liners Exterior Strength (The Banner You Ride Behind) 20 Machined Aluminum Wheels w/ Black Accents LED Roof Marker Lamps + Red Recovery Hooks Power-Folding/Extending Heated Trailer Mirrors GMC MultiPro Tailgate six functions, endless adaptability Spray-On Bedliner with AT4 Logo CornerStep & Side Bedsteps utility with precision LED Headlamps, Fog Lamps, & Cargo Lighting Owner Benefits 3-Year / 36,000-Mile* Bumper-to-Bumper Limited Warranty 5-Year / 100,000-Mile* Powertrain Warranty, Roadside Assistance & Courtesy Transportation First Maintenance Visit Included (*Whichever comes first see GMC.com or dealer for terms, details & limits) The Sierra 3500HD AT4 is more than a truck. It is a threshold guardian of roads and realms, a machine forged for those who build, conquer, and endure. If you are seeking not just horsepowerbut heritage this is your calling. AutoNation Dodge Ram Broadway 5600 S Broadway, Littleton, CO 80121 720.842.7793 - Disclaimer: Options and equipment listed are based on manufacturer information at the time of original production. Please confirm all vehicle details with dealer.






