2025 GMC Sierra 2500HD AT4 Crew Cab 4WD

The 2025 GMC Sierra 2500HD AT4 Crew Cab 4WD, finished in Onyx Black, delivers heavy-duty Duramax diesel performance with premium off-road capability built for serious work. Powered by a 6.6L Duramax Turbo-Diesel V8 producing 470 horsepower and 975 lb-ft of torque, paired with the Allison 10-speed automatic transmission and 4WD, this Sierra 2500HD is engineered for confident towing, hauling, and demanding terrain. The AT4 Premium Plus Package and Max Trailering Package enhance capability with advanced trailering hardware, while skid plates, all-terrain tires, red recovery hooks, and the MultiPro tailgate reinforce its professional-grade strength. Inside, the Jet Black interior with Kalahari accents blends rugged durability with refined comfort. Heated and ventilated front seats, heated rear outboard seats, dual-zone climate control, power-retractable assist steps, and a power sunroof create a premium work environment. The Technology Package adds a head-up display and rear camera mirror, while a 13.4-inch touchscreen with Google built-in, Bose premium audio, wireless Apple CarPlay and Android Auto, and a 12.3-inch digital driver display keep connectivity and control front and center. This vehicle has passed our certification process and is offered with nationwide competitive pricing and a recent price adjustment, making this Sierra 2500HD AT4 Crew Cab 4WD a standout opportunity for buyers seeking Duramax diesel power, heavy-duty towing capability, and refined off-road performance in a professional-grade truck.

Additional Information

AT4 Preferred Package,AT4 Premium Plus Package,Gooseneck/5th Wheel Prep Package,Max Trailering Package,Preferred Equipment Group 4SB,Technology Package,X31 Off-Road Package,7 Speakers,AM/FM radio: SiriusXM with 360L,Bose Premium 7-Speaker Sound System,Radio: AM/FM w/Premium GMC Infotainment System,SiriusXM w/360L Trial Subscription,Steering Wheel Audio Controls,Air Conditioning,Automatic temperature control,Electric Rear-Window Defogger,Front dual zone A/C,Rear window defroster,120-Volt Bed Mounted Power Outlet,120-Volt Instrument Panel Power Outlet,Driver Memory,Memory seat,Power driver seat,Power steering,Power windows,Push Button Start,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,Emergency communication system: OnStar,Front anti-roll bar,Front wheel independent suspension,Keyless Open & Start,Low tire pressure warning,Occupant sensing airbag,Overhead airbag,Power Sunroof,Pickup Box,Brake assist,Electronic Stability Control,Lane Departure Warning System,Hill Descent Control,Auto High-beam Headlights,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-Amp Alternator,Engine Block Heater,Exhaust Brake,Heavy-Duty 80 Amp Battery,Auto-dimming door mirrors,Bumpers: body-color,Front License Plate Kit,Gloss Black Header Grille & Grille Insert Bars,Heated door mirrors,IntelliBeam Automatic High Beam On/Off,LED Cargo Area Lighting,LED Smoked Amber Roof Marker Lamps,Off-Road High Clearance Step (LPO),Power door mirrors,Power-Retractable Black Assist Steps,Rear step bumper,Rear Wheelhouse Liners,Spray-On Pickup Bedliner w/GMC Logo,Turn signal indicator mirrors,Winter Grille Cover,2 Charge-Only Rear USB Ports,2 Charge/Data USB Ports Inside Center Console,2 USB Ports,Apple CarPlay/Android Auto,Auto-dimming Rear-View mirror,Automatic Emergency Braking,Bed View Camera w/2 Trailer Camera Provisions,Buckle to Drive,Compass,Driver door bin,Driver vanity mirror,Floor-Mounted Center Console,Following Distance Indicator,Forward Collision Alert,Front Pedestrian Braking,Front Prem Floor Liners w/Removable Carpet Insert,Front reading lights,HD Surround Vision,Heated steering wheel,Illuminated entry,Inside Rearview Auto-Dimming Rear Camera Mirror,Multicolor 15" Diagonal Head-Up Display,OnStar 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,Trailer Cam Provisions & Trailer Viewing Software,Trailer Side Blind Zone Alert,Trip computer,Ultrasonic Front & Rear Park Assist,Voltmeter,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 2nd Row Outboard Seats,Heated Driver & Front Outboard Passenger Seats,Heated front seats,Heated rear seats,Perforated Leather-Appointed Front Seat Trim,Power passenger seat,Safety Alert Seat,Split folding rear seat,Ventilated Driver & Front Passenger Seats,Ventilated front seats,Passenger door bin,Hitch Guidance w/Hitch View,In-Vehicle Trailering System App,Alloy wheels,Wheels: 20" High Gloss Black 8 Spokes Aluminum,Deep-Tinted Glass,Front Rain-Sensing Wipers,Power Front Passenger Windows w/Express Up/Down,Power Sliding Rear Window w/Defogger,Rain sensing wipers,Variably intermittent wipers,470 HP 6.6L Duramax V8 Turbo-Diesel,Allison 10-Speed Automatic/4-Wheel Drive,Spray-In Bedliner/MultiPro Tailgate,Max Trailering Package/Gooseneck/5th Wheel,20" Gloss Black Wheels/Power Sunroof,AT4 Premium Plus Package/Technology Package,Bose Premium Sound System/Head-Up Display