Vehicle Details
Body Style
Truck
Engine
6.6L 8Cyl
Exterior Colour
Silver
Interior Colour
Tan
Transmission
Automatic
Drivetrain
4×4
Stock
303490
Fuel Type
Diesel
Trim Details
4WD Crew Cab Standard Box Denali Ultimate
Description
The 2026 GMC Sierra 3500HD Denali Ultimate 4WD Crew Cab blends uncompromising heavy-duty capability with first-class luxury, delivering a commanding presence built for serious towing, long hauls, and refined daily driving. With its bold design, premium materials, and advanced technology, this truck stands at the peak of GMC’s professional-grade lineup; engineered to work hard and arrive in style. Â
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Performance & CapabilityÂ
Engine: 6.6L Duramax Turbo-Diesel V8 delivering massive torque, effortless towing strength, and refined highway cruising power Â
Transmission: Heavy-duty 10-speed automatic engineered for smooth shifting under load and optimized power delivery Â
Drivetrain: Advanced 4-Wheel Drive system with Autotrac transfer case for confident traction in any terrain or weather Â
Suspension: Off-Road Suspension with heavy-duty tuning for stability, control, and durability under extreme conditions Â
Frame Strength: Fully boxed, high-strength steel frame engineered for maximum payload and trailering confidence Â
Axle Ratio: 3.42 rear axle ratio, optimized heavy-duty gearing designed for serious towing performance and low-RPM highway efficiency Â
Trailering Equipment: Integrated trailer brake controller, trailer camera provisions, Hitch View, and advanced trailering app integration Â
Gooseneck/5th Wheel Prep: Factory-installed capability for large-scale towing and commercial-grade hauling Â
Exhaust & Engine Braking: Integrated exhaust brake and heavy-duty cooling systems for controlled descents and sustained towing performance Â
Drive Confidence Systems: Hill Descent Control, Traction Select modes, and stability management for all conditions Â
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Denali Ultimate Luxury & Winter ComfortÂ
Heated, ventilated, and massaging front seats wrapped in premium full-grain leather with power adjustability and memory settings Â
Heated rear outboard seats for added passenger comfort in extreme cold climates Â
Heated steering wheel with premium leather-wrapped finish for warm, confident control Â
Remote start system to pre-condition cabin temperature before entry Â
Dual-zone automatic climate control with advanced air filtrationÂ
Engine block heater for reliable cold-weather starts in harsh Canadian winters Â
Winter grille cover for improved cold-weather engine efficiency Â
All-weather interior protection with premium carpeted and durable floor liners Â
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Interior Comfort & RefinementÂ
Premium Denali Ultimate interior with open-pore wood, brushed metal accents, and Alpine Umber-inspired luxury finishes Â
4-way power front seating with lumbar, bolster, shoulder, and massage functions for driver and passenger Â
Rear seat storage system with fold-flat versatility for added cabin utility Â
Power sliding rear window for ventilation and convenience Â
Wireless charging pad and multiple USB/USB-C and 120V outlets throughout cabin and cargo areas Â
Keyless open, push-button start, and remote access features for seamless entry and operation Â
Power sunroof for natural light and an elevated driving experience Â
Premium Bose performance audio system delivering immersive, studio-quality sound Â
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Technology & Driver ExperienceÂ
13.4" GMC Premium Infotainment touchscreen with Google built-in, navigation, and intelligent voice control Â
12" fully digital driver display with customizable layouts and real-time towing data Â
Head-Up Display projecting key driving information directly into the windshield Â
Rear camera mirror and HD Surround Vision for enhanced visibility in all conditions Â
Bed view camera and trailer camera provisions for precise hitching and cargo monitoring Â
Wireless Apple CarPlay® and Android Autoâ„¢ for seamless smartphone integration Â
OnStar connected services with Wi-Fi hotspot capability for productivity on the go Â
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Safety & Driver AssistanceÂ
GMC Pro Safety Suite with advanced collision mitigation and awareness technologies Â
Forward Collision Alert with Automatic Emergency Braking Â
Lane Departure Warning with Lane Keep Assist for highway confidence Â
Rear Cross Traffic Alert and Trailer Side Blind Zone Alert for safer towing maneuvers Â
Front and Rear Park Assist for precision parking in tight environments Â
Following Distance Indicator and Adaptive Cruise Control for relaxed long-distance travel Â
Teen Driver Mode and Buckle-to-Drive safety systems for added peace of mind Â
HD Surround Vision and multiple camera perspectives for complete situational awareness Â
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Exterior Styling & UtilityÂ
Bold Denali Ultimate design with chrome accents, signature LED lighting, and commanding road presence Â
20" premium aluminum wheels designed for strength, durability, and upscale stylingÂ
LED headlamps, fog lamps, and roof marker lights for maximum visibility in all conditions Â
Power-retractable assist steps with LED perimeter lighting for refined entry and exit Â
GMC MultiPro Tailgate with configurable positions for loading, stepping, and workstation functionality Â
Spray-on bedliner with integrated LED cargo lighting for durability and nighttime utility Â
High-strength steel bed designed for heavy-duty hauling and jobsite readiness Â
Chrome recovery hooks and skid plates for enhanced off-road protection and confidence Â
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Whether hauling heavy equipment, towing long distances, or traveling in premium comfort, the 2026 GMC Sierra 3500HD Denali Ultimate delivers unmatched strength, cutting-edge technology, and handcrafted luxury. It is the ultimate expression of heavy-duty capability; where professional-grade power meets first-class refinement.Â
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Packages & Options
Standard Equipment
Technical Specifications
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AM/FM Stereo
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Auxiliary Audio Input
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Bluetooth Connection
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MP3 Player
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Navigation System
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Smart Device Integration
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Requires Subscription
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Satellite Radio
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Premium Sound System
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WiFi Hotspot
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Aluminum Wheels
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Tires - Front All-Terrain
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Tires - Rear All-Terrain
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Conventional Spare Tire
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Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
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Generic Sun/Moonroof
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Sun/Moonroof
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Bumper, front, body-colour lower
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Bumper, rear body-colour with bumper CornerSteps
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CornerStep, rear bumper
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Bed Step, Black integrated on forward portion of bed on driver and passenger side
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Power Retractable Running Boards
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Running Boards/Side Steps
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Mouldings, beltline, stainless steel
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Wheelhouse liners, rear (Not available with dual rear wheel models.)
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Bed Liner
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Cargo tie downs (12), fixed, rated at 500 lbs per corner
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Grille, Signature Denali Ultimate grille in Vader chrome with High Gloss Black surround
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Winter Grille Cover
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Daytime Running Lights
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LED Headlights
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Automatic Highbeams
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Fog Lamps
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Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
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Lamps, cargo area, cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
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LED Cargo Area Lighting located in cargo bed activated with switch on centre switch bank or key fob
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Lamps, Smoked Amber roof marker, (LED) (Standard with dual rear wheels.)
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Heated Mirrors
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Integrated Turn Signal Mirrors
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Power Folding Mirrors
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Power Mirror(s)
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Mirror caps, chrome
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Intermittent Wipers
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Rain Sensing Wipers
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Variable Speed Intermittent Wipers
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Privacy Glass
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Rear Defrost
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Sliding Rear Window
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Door handles, chrome
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Integrated Tailgate Step
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Tailgate and bed rail protection caps, top
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Premium Sound System
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Bucket Seats
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Leather Seats
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Driver Adjustable Lumbar
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Power Driver Seat
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Seat-Massage
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Passenger Adjustable Lumbar
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Power Passenger Seat
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Pass-Through Rear Seat
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Rear Bench Seat
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Heated Front Seat(s)
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Cooled Front Seat(s)
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Heated Rear Seat(s)
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Mirror Memory
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Seat Memory
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Centre Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
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Floor covering, colour-keyed carpeting
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Floor Mats
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Leather Steering Wheel
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Heated Steering Wheel
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Adjustable Steering Wheel
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Steering Wheel Audio Controls
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Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
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GMC Premium information Display- 13.4" diagonal Multicolour touch screen
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Heads-Up Display
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Exterior Temperature Display located in radio display
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Compass, located in instrument cluster
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Tire Pressure Monitor
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Window, power front, drivers express up/down
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Power Windows
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Power Door Locks
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Remote Engine Start
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Keyless Entry
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Keyless Start
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Adaptive Cruise Control
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Cruise Control
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Universal Garage Door Opener
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Security System
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Wireless Charging
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Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
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USB ports, (2) charge-only, rear
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Auxiliary Audio Input
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MP3 Player
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Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
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A/C
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Climate Control
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Multi-Zone A/C
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Air vents, rear
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Rear Defrost
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Auto-Dimming Rearview Mirror
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Back-Up Camera
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Assist handles, front A-pillar mounted for driver and passenger, rear B-pillar mounted
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8 Cylinder Engine
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Diesel Fuel
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Turbocharged
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10-Speed A/T
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A/T
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Rear axle, 3.42 ratio
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Pickup bed
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GVWR, 12,100 lbs. (5488 kg) with single rear wheels (Included and only available with TK30743 model and (L5P) Duramax 6.6L Turbo-Diesel V8 engine. Requires single rear wheels.)
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Engine block heater
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Keyless Start
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Air filter, heavy-duty
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Air filtration monitoring
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Transfer case, two-speed active electronic Autotrac with push button control
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Locking/Limited Slip Differential
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Four Wheel Drive
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Cooling, external engine oil cooler
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Cooling, auxiliary external transmission oil cooler
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Battery, heavy-duty 730 cold-cranking amps/70 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L5P) Duramax 6.6L Turbo-Diesel V8 engine.)
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Alternator, 220 amps
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Trailer brake controller, integrated
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Tow Hooks
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Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
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Skid Plates protect the oil pan, front axle and transfer case
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Suspension, Off-Road includes twin-tube shocks (Not available with dual rear wheels.)
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Power Steering
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4-Wheel Disc Brakes
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ABS
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Brake lining wear indicator
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Capped Fuel Fill
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Back-Up Camera
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Heads-Up Display
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Automatic Highbeams
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Front Collision Mitigation
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Front Collision Warning
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Lane Departure Warning
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X31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocks (Not available with dual rear wheels.)
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Tow Hitch
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ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App
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Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering
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Front Collision Mitigation
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Front Collision Warning
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Stability Control
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Traction Control
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Hill Descent Control (Not available with dual rear wheels.)
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Daytime Running Lights
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Driver Air Bag
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Front Head Air Bag
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Front Side Air Bag
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Passenger Air Bag
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Passenger Air Bag Sensor
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Rear Head Air Bag
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Requires Subscription
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Telematics
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Rear Parking Aid
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Aerial View Display System
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Back-Up Camera
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Bed View Camera camera in the CHMSL to show a view of the cargo bed, display located in infotainment screen, includes Two Trailer Camera Provisions
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Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
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Trailer Camera Provisions and trailer viewing software
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Cross-Traffic Alert
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Blind Spot Monitor
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Lane Departure Warning
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Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
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Safety Alert Seat
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Rear Seat Reminder
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Driver Restriction Features
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Seat Belt Adjustable Guide Loops, front row only
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Rear Seat Belt Indicator (Requires Crew Cab or Double Cab model.)
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Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) Sierra HD Pro Safety)
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Tire Pressure Monitor
No matches were found.
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Vehicle NameGMC Sierra 3500HD
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Body StyleCrew Cab Pickup
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Body CodeE63
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DrivetrainFour Wheel Drive
-
Trans Order CodeMGM
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Trans Type10
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Trans Description Cont.Automatic
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First Gear Ratio (:1)4.54
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Second Gear Ratio (:1)2.87
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Third Gear Ratio (:1)2.06
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Fourth Gear Ratio (:1)1.72
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Fifth Gear Ratio (:1)1.48
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Sixth Gear Ratio (:1)1.26
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Seventh Gear Ratio (:1)1.00
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Eighth Gear Ratio (:1)0.85
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Ninth Gear Ratio (:1)0.69
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Tenth Gear Ratio (:1)0.63
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Reverse Ratio (:1)4.54
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Passenger Capacity5
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Front Head Room (in)39.88
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Front Leg Room (in)44.53
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Front Shoulder Room (in)66.02
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Front Hip Room (in)61.18
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Second Head Room (in)40.12
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Second Leg Room (in)43.4
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Second Shoulder Room (in)65.3
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Second Hip Room (in)60.24
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Gross Axle Wt Rating - Front (lbs)5600
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Gross Axle Wt Rating - Rear (lbs)7250
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Curb Weight - Front (lbs)4032
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Curb Weight - Rear (lbs)2928
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Gross Vehicle Weight Rating Cap (lbs)12100
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Gross Combined Wt Rating (lbs)30000
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Dead Weight Hitch - Max Trailer Wt. (lbs)5000
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Dead Weight Hitch - Max Tongue Wt. (lbs)500
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Wt Distributing Hitch - Max Trailer Wt. (lbs)20000
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Wt Distributing Hitch - Max Tongue Wt. (lbs)2000
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Fifth Wheel Hitch - Max Trailer Wt. (lbs)21100
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)5275
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Maximum Trailering Capacity (lbs)20000
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Engine Order CodeL5P
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Engine TypeTurbocharged Diesel V8
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Displacement6.6L
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Fuel SystemDirect Injection
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SAE Net Horsepower @ RPM470 @ 2800
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SAE Net Torque @ RPM975 @ 1600
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Engine Oil CoolerYes
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Cold Cranking Amps @ 0° F (Primary)720
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Maximum Alternator Capacity (amps)170
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Frame TypeHydroformed
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Suspension Type - FrontShort/Long Arm w/Torsion Bars
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Suspension Type - Rear3-Stage Multi-Leaf
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Axle Type - FrontIndependent
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Axle Ratio (:1) - Front3.42
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Axle Ratio (:1) - Rear3.42
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Shock Absorber Diameter - Front (mm)51
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Shock Absorber Diameter - Rear (mm)51
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Stabilizer Bar Diameter - Front (in)1.38
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Front Tire Order CodeQF6
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Rear Tire Order CodeQF6
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Spare Tire Order CodeZYG
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Front Tire SizeLT275/70R18
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Rear Tire SizeLT275/70R18
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Spare Tire SizeLT275/70R18
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Front Wheel Size (in)18 x 8
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Rear Wheel Size (in)18 x 8
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Spare Wheel Size (in)18 x 8
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Front Wheel MaterialAluminum
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Rear Wheel MaterialAluminum
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Spare Wheel MaterialSteel
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Steering TypePwr Recirculating Ball
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Steering Ratio (:1), At LockN/A
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Turning Diameter - Curb to Curb (ft)52.7
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Turning Diameter - Wall to Wall (ft)N/A
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Brake TypePwr
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Brake ABS System4-Wheel
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Disc - FrontYes
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Disc - RearYes
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Front Brake Rotor Diam x Thickness (in)14 x 1.6
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Rear Brake Rotor Diam x Thickness (in)14.1 x 1.3
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Fuel Tank Capacity, Approx (L)136
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Wheelbase (in)158.94
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Length, Overall (in)250.75
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Width, Max w/o mirrors (in)81.85
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Height, Overall (in)81.2
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Cab to Axle (in)42.17
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Ground Clearance, Front (in)11.18
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Ground Clearance, Rear (in)11.18
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Cargo Box Length @ Floor (in)82.2
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Cargo Box Width @ Floor (in)71.4
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Cargo Box Width @ Wheelhousings (in)51.85
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Cargo Box (Area) Height (in)21
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Cargo Volume (ft³)69.5
No matches were found.
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