The 2026 GMC Sierra 3500HD Denali represents professional-grade capability paired with refined comfort and modern technology designed for those who demand both performance and sophistication in their work truck.- 6.6L V8 Duramax Turbodiesel Engine with 470 hp and 975 lb-ft of torque- 10-Speed Automatic Transmission with 4WD- Denali Reserve Package with premium appointments- Gooseneck/5th Wheel Prep Package for towing versatility- 13.4 GMC Premium Information Display with 15 Head-Up Display- Bose Premium 7-Speaker Sound System with SiriusXM 360L- Forge Perforated Leather Seat Trim with heated and ventilated front seats- 12-Way Power Driver and Passenger Seat Adjusters with Lumbar Support- HD Surround Vision with Bed View Camera and Trailer Camera Provisions- Automatic Emergency Braking and Front Pedestrian Braking- Lane Departure Warning and Rear Cross Traffic Alert- Power Sunroof with deep-tinted glass- Wireless Charging and Wireless Phone Projection- Upfitter Switch Kit for auxiliary equipment integration- Engine Block Heater and Exhaust BrakeThis Sierra 3500HD combines workhorse capability with executive-level refinement. The legendary Duramax diesel engine delivers substantial torque for serious towing and hauling, while the 10-speed automatic transmission ensures smooth power delivery across all conditions. The 2-speed active transfer case and comprehensive four-wheel drive system provide the control you need on any terrain.Inside, the Denali Reserve Package elevates the cabin with genuine wood accents, Forge perforated leather seating, and a commanding 15-inch head-up display. Heated and ventilated front seats with lumbar support keep you comfortable throughout your day, whether you're managing a job site or enjoying a weekend drive. Dual-zone automatic climate control maintains your preferred temperature while the premium Bose sound system with SiriusXM 360L ensures quality entertainment.Safety and technology integration define this truck's modern approach. The HD Surround Vision system with bed view camera and trailer camera provisions streamlines hitching and maneuvering, while automatic emergency braking, lane departure warning, and rear cross traffic alert provide continuous protection. Wireless phone projection and charging keep your devices powered and accessible without clutter.The Gooseneck/5th Wheel Prep Package, combined with trailer tire pressure monitor sensors and hitch guidance, positions this truck as a serious hauling platform. The upfitter switch kit allows for specialized equipment integration, making this Sierra adaptable to your specific professional needs.The exterior reflects Denali's commanding presence with the signature chrome grille, power-retractable assist steps, LED cargo area lighting, and a spray-on bedliner with GMC Logo. Heated power-mirror with turn signal indicators and auto-dimming capability enhance visibility and convenience in all weather conditions.This 2026 GMC Sierra 3500HD Denali is engineered for owners who refuse to compromise between capability and comfort. With its combination of diesel power, advanced safety systems, premium interior appointments, and specialized towing preparation, this truck stands ready to handle whatever your day demands. Price includes Price includes Dealer discount and GM rebates that all customers qualify for:$2000 - Buick GMC Bonus Cash. Exp. 08/31/2026

Options:

Denali Reserve Package,Gooseneck/5th Wheel Prep Package,Preferred Equipment Group 5SA,Technology Package,7 Speakers,AM/FM radio: SiriusXM with 360L,Bose Premium 7-Speaker Sound System,Premium audio system: Premium GMC Infotainment System,Radio: AM/FM Stereo with Premium GMC Infotainment System,SiriusXM with 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 Front Windows with Passenger Express Up/Down,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,Speed-sensing steering,Traction control,4-Wheel Disc Brakes,ABS brakes,Dual front impact airbags,Dual front side impact airbags,Emergency communication system: OnStar Services capable,Front anti-roll bar,Front wheel independent suspension,Keyless Open and Start,Low tire pressure warning,Occupant sensing airbag,Overhead airbag,Power Sunroof,Pickup Bed,Brake assist,Electronic Stability Control,Lane Departure Warning System,Exterior Parking Camera Rear,Auto High-beam Headlights,Delay-off headlights,Front fog lights,Fully automatic headlights,Polished Exhaust Tip,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-Hour Battery,Auto-dimming door mirrors,Bed Mounted Assist Handle,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,Power door mirrors,Power-Retractable Assist Steps,Rear step bumper,Signature Chrome Denali Grille,Spray-on Pickup Bedliner with 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,Auto-Dimming Inside Rearview Mirror with Camera,Auto-dimming Rear-View mirror,Automatic Emergency Braking,Bed View Camera with Two 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 reading lights,Garage door transmitter,Genuine wood dashboard insert,Genuine wood door panel insert,GMC Premium 13.4 inch Diagonal Information Display,HD Surround Vision,Heated steering wheel,Illuminated entry,Multicolor 15 inch Diagonal Head-Up Display,Outside temperature display,Overhead console,Passenger vanity mirror,Premium Front Floor Liners with Removable Carpet Insert,Premium Rear Floor Liners with Removable Carpet Insert,Rear Cross Traffic Alert,Rear reading lights,Rear seat center armrest,Safety Alert Seat,Tachometer,Telescoping steering wheel,Tilt steering wheel,Trailer Camera Provisions,Trailer Side Blind Zone Alert,Trip computer,Ultrasonic Front and Rear Park Assist,Upfitter Switch Kit (5),Voltmeter,Wireless Charging,Wireless Phone Projection,12-Way Power Driver Seat Adjuster with Lumbar,12-Way Power Passenger Seat Adjuster with Lumbar,Forge Perforated Leather Seat Trim,Front Bucket Seats,Front Center Armrest,Heated 2nd Row Outboard Seats,Heated Driver and Front Outboard Passenger Seats,Heated front seats,Heated rear seats,Power passenger seat,Split folding rear seat,Ventilated Driver and Front Passenger Seats,Ventilated front seats,Passenger door bin,Hitch Guidance with Hitch View,Trailer Tire Pressure Monitor Sensors,Alloy wheels,Deep-Tinted Glass,Front Rain-Sensing Wipers,Power Sliding Rear Window with Defogger,Rain sensing wipers,Variably intermittent wipers,REAR CAMERA MIRROR inside rearview auto-dimming with full camera display,GOOSENECK / 5TH WHEEL PREP PACKAGE -- Hitch platform to accept Gooseneck or 5th Wheel hitch. Includes hitch platform with tray to accept ball stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).,LICENSE PLATE KIT FRONT,AUDIO SYSTEM 13.4 DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM with Google built in apps such as navigation and voice assistance includes color touch-screen multi-touch display AM/FM stereo Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones. (STD),TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolor 15 Diagonal Head-Up Display,TIRE SPARE LT235/80R18 BLACKWALL ALL-TERRAIN,TRANSMISSION 10-SPEED AUTOMATIC,DENALI PREFERRED EQUIPMENT GROUP includes standard equipment,TIRES LT235/80R18 ALL-TERRAIN BLACKWALL,ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.),WINTER GRILLE COVER,GVWR 14 000 LBS. (6350 KG) WITH DUAL REAR WHEELS,TRAILER TIRE PRESSURE MONITOR SENSORS includes set of 4 sensors. Sensor functionality requires (UET) In-vehicle Trailering App to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories,ENGINE BLOCK HEATER,DUAL REAR WHEELS includes LED hip marker lights,UPFITTER SWITCH KIT (5) Provides 3-30 amp and 2-20 amp configurable circuits to facilitate installation of aftermarket electrical accessories. Kit with all required parts will be shipped loose with the truck for installation by the dealer or upfitter at customer expense. Installation instructions and technical assistance available at www.gmupfitter.com.,LPO REAR WHEELHOUSE LINERS (dealer-installed),ASSIST HANDLE SIDE (bed mounted; fold out grab handle for extra support),WHEELS 18 (45.7 CM) POLISHED FORGED ALUMINUM Includes Denali center caps.),SUNROOF POWER,SUMMIT WHITE,DENALI RESERVE PACKAGE includes (CWM) Technology Package and (CF5) power sunroof,PREMIUM FLOOR LINERS WITH REMOVABLE CARPET INSERT REAR,ASSIST STEPS POWER-RETRACTABLE with LED perimeter lighting and bright accent,REAR AXLE 3.42 RATIO,PREMIUM FLOOR LINERS WITH REMOVABLE CARPET INSERT FRONT,SUSPENSION PACKAGE,JET BLACK FORGE PERFORATED LEATHER SEATING SURFACES,EXHAUST BRAKE,ALTERNATOR 220 AMPS,SEATS FRONT BUCKET WITH CENTER CONSOLE (STD),MULTICOLOR 15 DIAGONAL HEAD-UP DISPLAY,Lane Departure Warning,Front Collision Mitigation,Front Collision Warning,Automatic Highbeams,Tow Hitch,Running Boards/Side Steps,Keyless Start,Locking/Limited Slip Differential,Four Wheel Drive,Tow Hooks,Power Steering,ABS,4-Wheel Disc Brakes,Aluminum Wheels,Tires - Front All-Terrain,Tires - Rear All-Terrain,Conventional Spare Tire,Running Boards/Side Steps,Bed Liner,Daytime Running Lights,LED Headlights,Automatic Highbeams,Fog Lamps,Heated Mirrors,Power Mirror(s),Integrated Turn Signal Mirrors,Power Folding Mirrors,Intermittent Wipers,Variable Speed Intermittent Wipers,Rain Sensing Wipers,Privacy Glass,Rear Defrost,Sliding Rear Window,Integrated Tailgate Step,AM/FM Stereo,Navigation System,MP3 Capability,Bluetooth Connection,Auxiliary Audio Input,Smart Device Integration,Satellite Radio,Requires Subscription,Satellite Radio,Requires Subscription,Premium Sound System,Bluetooth Connection,Bluetooth Connection,Smart Device Integration,WiFi Hotspot,Bucket Seats,Leather Seats,Power Driver Seat,Driver Adjustable Lumbar,Power Passenger Seat,Passenger Adjustable Lumbar,Pass-Through Rear Seat,Rear Bench Seat,Heated Front Seat(s),Heated Front Seat(s),Cooled Front Seat(s),Heated Rear Seat(s),Mirror Memory,Seat Memory,Floor Mats,Floor Mats,Heated Steering Wheel,Adjustable Steering Wheel,Steering Wheel Audio Controls,Tire Pressure Monitor,Power Windows,Power Windows,Power Door Locks,Remote Engine Start,Keyless Entry,Power Door Locks,Keyless Start,Cruise Control,Adaptive Cruise Control,Universal Garage Door Opener,Security System,MP3 Capability,Auxiliary Audio Input,MP3 Capability,Auxiliary Audio Input,Climate Control,Multi-Zone A/C,A/C,Rear Defrost,Auto-Dimming Rearview Mirror,Front Collision Mitigation,Front Collision Warning,Traction Control,Stability Control,Daytime Running Lights,Daytime Running Lights,Driver Air Bag,Passenger Air Bag,Front Side Air Bag,Front Head Air Bag,Rear Head Air Bag,Passenger Air Bag Sensor,Telematics,Requires Subscription,Rear Parking Aid,Back-Up Camera,Aerial View Display System,Back-Up Camera,Cross-Traffic Alert,Blind Spot Monitor,Lane Departure Warning,Front Collision Warning,Front Collision Mitigation,Driver Restriction Features,Tire Pressure Monitor,Telematics,Navigation from Telematics,Requires Subscription,Telematics,Navigation from Telematics,WiFi Hotspot,Requires Subscription