Vehicle Details
Body Style
Truck
Engine
6.6L 8Cyl
Exterior Colour
White
Interior Colour
Tan
Transmission
Automatic
Drivetrain
4×4
Stock
303438
Fuel Type
Diesel
Trim Details
4WD Crew Cab Long Box Denali Ultimate
Description
The 2026 GMC Sierra 3500HD Denali Ultimate 4WD Crew Cab Long Box stands at the pinnacle of heavy-duty luxury and professional-grade strength, combining uncompromising diesel power, premium craftsmanship, and cutting-edge technology. Designed for those who demand elite capability without sacrificing refinement, it delivers commanding presence, intelligent engineering, and first-class comfort in every mile.Â
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Performance & CapabilityÂ
Engine: Duramax 6.6L V8 Turbo Diesel delivering immense torque and effortless heavy-duty hauling powerÂ
Transmission: Advanced 10-speed automatic transmission for smooth, intelligent power delivery under loadÂ
Drivetrain: Autotrac 4WD system with two-speed transfer case for maximum traction and control in all conditionsÂ
Axle Ratio: 3.42 rear axle ratio optimized for towing stability and highway efficiencyÂ
Towing Strength: Integrated trailer brake controller, Hitch View, trailer camera provisions, and trailering app for complete towing confidenceÂ
Gooseneck/5th Wheel Prep Package engineered for serious commercial-grade towing capabilityÂ
Suspension: Heavy-duty suspension system with enhanced stability and load control for long-haul durabilityÂ
Braking System: Engine exhaust brake and advanced braking technologies for controlled descent under heavy loadsÂ
Cooling & Durability: Transmission oil cooler, engine oil cooler, and heavy-duty air filtration for sustained performanceÂ
Off-Road Confidence: Skid plates, automatic locking rear differential, and hill-ready traction systems for rugged terrainÂ
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Denali Ultimate Luxury InteriorÂ
Premium leather-appointed cabin with Alpine Umber styling and handcrafted Denali Ultimate detailingÂ
Heated, ventilated, and massaging front seats for first-class comfort on every driveÂ
Heated rear outboard seats and heated steering wheel for all-weather luxuryÂ
Power-adjustable front seats with lumbar, bolster, and memory settings for personalized comfortÂ
Driver and front passenger seat massage functionality for long-distance relaxationÂ
Power sunroof bringing natural light and openness into the cabinÂ
Dual-zone automatic climate control with rear air vents for balanced comfort throughoutÂ
Power sliding rear window enhancing ventilation and cabin versatilityÂ
Deep-tint glass for privacy, comfort, and UV protectionÂ
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Technology & ConnectivityÂ
13.4" GMC Premium Infotainment System with Google Built-In for seamless navigation and smart controlÂ
12" fully digital Driver Information Center with customizable displaysÂ
Head-Up Display projecting key driving data directly into your line of sightÂ
Bose premium audio system delivering immersive, studio-quality soundÂ
Wireless Apple CarPlay® and Android Autoâ„¢ for effortless smartphone integrationÂ
Wireless charging pad and multiple USB ports throughout the cabinÂ
Wi-Fi hotspot capability to keep passengers and devices connected on the goÂ
Remote start, keyless open, and push-button ignition for modern convenienceÂ
Rear camera mirror, HD Surround Vision, and bed view camera for total situational awarenessÂ
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Safety & Driver AssistanceÂ
GMC Pro Safety suite with advanced driver confidence technologiesÂ
Forward Collision Alert with Automatic Emergency BrakingÂ
Lane Departure Warning and Lane Keep Assist with steering interventionÂ
Front Pedestrian Braking for enhanced urban safetyÂ
Rear Cross Traffic Alert and Trailer Side Blind Zone Alert for towing awarenessÂ
Adaptive Cruise Control with Following Distance Indicator for relaxed highway drivingÂ
Front and Rear Park Assist for precision maneuvering in tight spacesÂ
Teen Driver Mode and Buckle-to-Drive safety monitoring systemÂ
Driver Safety Alert Seat providing vibration alerts for potential hazardsÂ
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Exterior Styling & UtilityÂ
Bold Denali Ultimate exterior finished in Glacier White Tricoat with chrome and premium accentsÂ
18" polished forged aluminum wheels delivering strength with luxury appealÂ
LED headlamps, fog lamps, cargo lighting, and roof marker lamps for maximum visibilityÂ
GMC MultiPro Tailgate with configurable functions for step, workstation, and cargo accessÂ
Spray-on bedliner and LED bed lighting for durability and nighttime utilityÂ
Power-retractable assist steps with LED perimeter lighting for refined entry and exitÂ
Heated, power-folding trailer mirrors with auto-dimming and integrated camerasÂ
Chrome recovery hooks and robust rear bumper design for rugged confidenceÂ
Long box configuration maximizing cargo capacity and worksite versatilityÂ
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The 2026 Sierra 3500HD Denali Ultimate is more than a heavy-duty truck, it is the ultimate fusion of luxury and capability. Whether towing extreme loads, traveling long distances in comfort, or commanding the jobsite with authority, it delivers unmatched refinement, intelligence, and strength in every detail.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, 12,250 lbs. (5557 kg) with single rear wheels (Included and only available with TK30943 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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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
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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)10400
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Curb Weight - Front (lbs)4142
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Curb Weight - Rear (lbs)2918
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Gross Vehicle Weight Rating Cap (lbs)14000
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Gross Combined Wt Rating (lbs)40000
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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)30700
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)7675
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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)57.0
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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 x 1.6
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Fuel Tank Capacity, Approx (L)136
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Wheelbase (in)172
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Length, Overall (in)266.77
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Width, Max w/o mirrors (in)96.6
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Height, Overall (in)80.3
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Cab to Axle (in)55.24
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Ground Clearance, Front (in)10.39
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Ground Clearance, Rear (in)10.39
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Cargo Box Length @ Floor (in)98.22
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Cargo Box Width @ Floor (in)71.4
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Cargo Box Width @ Wheelhousings (in)50.55
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Cargo Box (Area) Height (in)21
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Cargo Volume (ft³)83.5
No matches were found.
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