2022 GMC Sierra 2500HD AT4 Crew Cab 4WD

The 2022 GMC Sierra 2500HD AT4 equipped with the 6.6L Duramax Turbo-Diesel V8 is built for buyers searching for a premium heavy-duty truck with maximum towing capability, off-road performance, luxury-level comfort, and proven diesel durability. This configuration combines GMCs upscale AT4 package with the legendary Duramax/Allison powertrain, making it one of the most sought-after HD trucks on the market. Powered by the 6.6L Duramax Turbo-Diesel V8 producing 445 horsepower and 910 lb-ft of torque, paired with the highly respected Allison 10-speed automatic transmission, this Sierra delivers exceptional pulling power, smooth shifting under load, and long-term towing confidence. When properly equipped, the Sierra 2500HD AT4 Duramax offers: Up to 18,500 lbs conventional towing capacity Over 21,000 lbs fifth-wheel/gooseneck towing capability Payload capacity exceeding 4,000 lbs Integrated trailer brake controller and advanced trailering technologies The AT4 trim is purpose-built for buyers wanting both luxury and off-road capability, featuring: Factory off-road suspension with Rancho shocks Skid plates and hill descent control 20-inch wheels with all-terrain tires Red recovery hooks LED lighting and AT4-exclusive styling Automatic locking rear differential Inside, the Sierra AT4 delivers a premium interior comparable to luxury SUVs while maintaining true HD truck capability. Features commonly include: Leather-appointed seating with AT4 accents Heated and ventilated front seats Heated steering wheel Large touchscreen infotainment system Apple CarPlay and Android Auto Bose premium audio system Navigation capability Wireless charging MultiPro tailgate Remote start and push-button ignition The Crew Cab configuration provides exceptional passenger space and rear-seat comfort, making this truck ideal for towing trips, work crews, long-distance travel, or family use. From a driving standpoint, the Duramax diesel platform is known for: Massive low-end torque for towing Excellent highway stability under load Long-term durability and resale value Improved fuel economy compared to gas HD trucks Strong engine braking and towing control in mountain driving Safety and driver-assistance technologies include: Forward collision alert Lane departure warning HD surround vision camera system Blind-spot monitoring with trailer coverage Front and rear park assist Rearview backup camera Adaptive cruise control (available) This vehicle aligns directly with high-intent searches such as 2022 GMC Sierra 2500HD AT4 Duramax for sale, Duramax diesel 4x4 truck, luxury heavy duty pickup, and Allison transmission diesel truck. It is especially well-suited for: RV and fifth-wheel owners Heavy trailer towing Contractors and business owners Buyers upgrading from half-ton trucks Drivers wanting premium comfort with HD capability The Sierra AT4 Duramax continues to hold strong market demand because it combines Duramax diesel reliability, luxury-level interior refinement, advanced towing technology, and factory off-road capability into one highly versatile platform. Compared to competitors like the F-250 Tremor, Ram 2500 Limited, and Silverado HD Z71, the Sierra AT4 stands out for its premium styling and upscale cabin design. If you are searching for a 2022 GMC Sierra 2500HD AT4 Duramax for sale, premium diesel truck, or heavy-duty 4x4 towing truck, this vehicle represents one of the strongest values in todays HD truck market. Contact us to confirm availability and schedule a test drive. Financing options are available for all credit profiles, trade-ins are accepted, and the vehicle is inspected and ready for immediate delivery.

Additional Information

AT4 Preferred Package,AT4 Premium Plus Package,Driver Alert Package I,Driver Alert Package II,Preferred Equipment Group 4SB,Technology Package,X31 Off-Road Package,6 Speakers,6-Speaker Audio System Feature,AM/FM radio: SiriusXM with 360L,Bose Premium 7 Speaker Sound System,Premium audio system: Premium GMC Infotainment System,Radio: AM/FM w/Prem GMC Infotainment System & Navi,Radio: AM/FM w/Premium GMC Infotainment System,SiriusXM w/360L,Steering Wheel Audio Controls,Air Conditioning,Automatic temperature control,Electric Rear-Window Defogger,Front dual zone A/C,Rear window defroster,12-Volt Rear Auxiliary Power Outlet,120-Volt Bed Mounted Power Outlet,120-Volt Instrument Panel Power Outlet,Driver Memory,Memory seat,Power driver seat,Power steering,Power windows,Power Windows w/Driver Express Up/Down,Remote keyless entry,Remote Vehicle Starter System,Steering wheel mounted audio controls,Universal Home Remote,Manual Tilt-Wheel/Telescoping Steering Column,Off-Road Suspension,Speed-sensing steering,Traction control,4-Wheel Disc Brakes,ABS brakes,Dual front impact airbags,Dual front side impact airbags,Electrical Lock Control Steering Column,Emergency communication system: OnStar and GMC Connected Services capable,Front anti-roll bar,Front wheel independent suspension,Keyless Open & Start,Low tire pressure warning,Occupant sensing airbag,Overhead airbag,Power Door Locks,Power Sunroof,Pickup Box,Brake assist,Electronic Stability Control,Lane Departure Warning System,Hill Descent Control,Delay-off headlights,Front fog lights,Fully automatic headlights,Panic alarm,Security system,Unauthorized Entry Theft-Deterrent System,Speed control,2-Speed Active Transfer Case,220 Amps Alternator,Engine Block Heater,Exhaust Brake,Heavy-Duty 80 Amp Battery,Auto-dimming door mirrors,Black Front & Rear Molded Splash Guards (LPO),Bumpers: body-color,Front License Plate Kit,Heated door mirrors,IntelliBeam Automatic High Beam On/Off,LED Cargo Area Lighting,LED Smoked Amber Roof Marker Lamps,Not Equipped w/Rear Wheelhouse Liners (DISC),Off-Road High Clearance Step (LPO),Painted Black Surround Grille,Power door mirrors,Rear step bumper,Rear Wheelhouse Liners,Spray-On Pickup Box Bed Liner w/AT4 Logo,Turn signal indicator mirrors,Winter Grille Cover,1st & 2nd Rows All-Weather Floor Liners (LPO),2 USB Ports,2 USB Ports (1st Row),2nd Row Dual USB Charge-Only Ports,4.2" Diagonal Color Display Driver Info Center,8" Driver Information Center,Apple CarPlay/Android Auto,Auto-dimming Rear-View mirror,Automatic Emergency Braking,Bed View Camera w/2 Trailer Camera Provisions,Compass,Compass Located In Instrument Cluster,Driver door bin,Driver vanity mirror,Floor-Mounted Center Console,Following Distance Indicator,Forward Collision Alert,Front Prem Floor Liners w/Removable Carpet Insert,Front reading lights,GMC Connected Access Capable,HD Rear Vision Camera,HD Surround Vision w/2 Trailer View Camera Provisions,Heated steering wheel,Illuminated entry,Inside Rearview Auto-Dimming Rear Camera Mirror,Lane Change Alert w/Side Blind Zone Alert,Multicolor 15" Diagonal Head-Up Display,Not Equipped w/Front & Rear Park Assist,Not Equipped w/Heated 2nd Row Outboard Seats,OnStar & GMC Connected Services Capable,Outside temperature display,Overhead console,Passenger vanity mirror,Rear Cross Traffic Alert,Rear Prem Floor Liners w/Removable Carpet Insert,Rear reading lights,Rear seat center armrest,Tachometer,Telescoping steering wheel,Tilt steering wheel,Trip computer,Ultrasonic Front & Rear Park Assist,Voltmeter,Wi-Fi Hotspot Capable,Wireless Charging,Wireless Phone Projection,10-Way Power Driver Seat Adjuster w/Lumbar,10-Way Power Passenger Seat Adjuster w/Lumbar,Front Bucket Seats,Front Center Armrest,Heated & Ventilated Front Bucket Seats,Heated Driver & Front Outboard Passenger Seats,Heated front seats,Not Equip w/Heat & Vent Seat Cushion Blower Motor,Not Equipped w/Heated/Ventilated Front Seats,Perforated Leather-Appointed Front Seat Trim,Power passenger seat,Safety Alert Seat,Split folding rear seat,Ventilated front seats,Cargo Tie-Down Rings (Set of 4) (LPO),Passenger door bin,5th Wheel & Gooseneck Trailer Wiring Provisions,Hitch Guidance w/Hitch View,In-Vehicle Trailering System App,Integrated Trailer Brake Controller,Red Recovery Hooks,18" Machined Aluminum Wheels,20" Machined Aluminum Wheels,Alloy wheels,Deep-Tinted Glass,Power Front Passenger Windows w/Express Up/Down,Power Rear Windows w/Express Down,Power Sliding Rear Window w/Defogger,Variably intermittent wipers