Vehicle Details
Body Style
Truck
Engine
6.6L 8Cyl
Exterior Colour
White
Interior Colour
Black
Transmission
Automatic
Drivetrain
4×4
Stock
303622
Fuel Type
Diesel
Trim Details
4WD Crew Cab Long Box Denali
Description
The 2026 GMC Sierra 3500HD Denali combines heavy-duty diesel capability, premium craftsmanship, and advanced towing technology into one commanding luxury pickup. Designed for serious hauling while surrounding passengers with upscale comfort and intelligent features, this Crew Cab Long Box delivers the confidence and refinement expected from GMC’s flagship heavy-duty truck.Â
Performance & CapabilityÂ
Engine: Duramax® 6.6L V8 Turbo-Diesel delivering massive torque and exceptional towing strengthÂ
Transmission: Smooth and responsive 10-speed automatic transmission engineered for heavy-duty performanceÂ
Drivetrain: Autotrac® 4-Wheel Drive (4WD) for dependable traction in demanding road and weather conditionsÂ
Suspension: Standard heavy-duty suspension package tuned for stability, ride comfort, and payload confidenceÂ
Rear Axle Ratio: 3.42 rear axle optimized for towing performance and long-haul durabilityÂ
Trailering Equipment: Integrated trailer brake controller, Hitch Guidance with Hitch View, and advanced trailering technologiesÂ
Gooseneck/5th Wheel Prep Package ready for serious towing capabilityÂ
Trailer Camera Provisions and Bed View Camera improving visibility while towing and maneuveringÂ
Exhaust Brake, engine oil cooler, and transmission oil cooler supporting confident heavy-load performanceÂ
Automatic Locking Rear Differential and skid plates for added traction and durability on rough terrainÂ
Digital Variable Steering Assist enhancing handling precision and controlÂ
Luxury & ComfortÂ
Heated & Ventilated Front Seats delivering year-round comfort in every climateÂ
Heated Rear Outboard Seats and Heated Steering Wheel for added passenger convenienceÂ
Front Bucket Seats with power adjustment, lumbar support, and memory settings for personalized comfortÂ
Dual-Zone Automatic Climate Control maintaining ideal cabin temperatures for driver and passengersÂ
Power Sunroof bringing natural light and open-air luxury into the cabinÂ
Remote Start System and Push-Button Start for effortless daily operationÂ
Power Sliding Rear Window and Rear Seat Storage Package adding versatility and practicalityÂ
Premium Jet Black interior with refined Denali trim and upscale detailing throughoutÂ
Chrome Assist Steps making cabin access easy and stylishÂ
Rear air vents and spacious Crew Cab seating providing excellent passenger comfort for long tripsÂ
Technology & ConnectivityÂ
13.4" GMC Premium Infotainment Touchscreen with Google Built-In and navigation capabilityÂ
12" Digital Driver Information Centre with customizable vehicle and towing informationÂ
Wireless Apple CarPlay® & Android Autoâ„¢ integration for seamless smartphone connectivityÂ
Wireless Charging Pad and multiple USB ports for convenient device chargingÂ
Bose® Premium Audio System delivering rich, immersive sound qualityÂ
Multi-Color Head-Up Display projecting key driving information directly onto the windshieldÂ
Rear Camera Mirror providing a wider, unobstructed rearward viewÂ
Wi-Fi® Hotspot Capability helping keep passengers connected on the roadÂ
Universal Home Remote for added convenience and garage integrationÂ
Adaptive Cruise Control enhancing long-distance driving comfort and confidenceÂ
Safety & Driver AssistanceÂ
GMC Pro Safety suite with advanced driver-assistance technologies for enhanced peace of mindÂ
Forward Collision Alert with Automatic Emergency BrakingÂ
Front Pedestrian Braking helping improve awareness in busy environmentsÂ
Lane Departure Warning and Following Distance Indicator for added highway confidenceÂ
Trailer Side Blind Zone Alert assisting visibility while towing larger trailersÂ
HD Surround Vision providing a full 360-degree perspective when parking or maneuveringÂ
Front & Rear Park Assist making tight spaces easier to navigateÂ
Rear Cross Traffic Alert improving awareness when reversingÂ
Driver Safety Alert Seat offering intuitive warning feedbackÂ
Teen Driver Mode and Buckle-to-Drive promoting safer driving habitsÂ
Exterior Styling & UtilityÂ
18" Polished Forged Aluminum Wheels paired with all-terrain tires for a bold and capable stanceÂ
Exterior Colour: Summit White — clean, professional, and timeless in appearanceÂ
Signature LED Headlamps, LED Fog Lamps, LED Roof Marker Lamps, and LED Cargo Bed Lighting for enhanced visibilityÂ
Chrome Mirror Caps, Chrome Door Handles, and Chrome Recovery Hooks accentuating Denali luxury stylingÂ
Heated, power-adjustable trailering mirrors with auto-dimming functionality for added towing confidenceÂ
GMC MultiProâ„¢ Tailgate with EZ Lift power lock and release functionality for added versatilityÂ
Spray-On Bedliner and 120V Bed-Mounted Power Outlet ready for demanding worksites and weekend adventuresÂ
Rear Bumper CornerSteps and long box cargo space maximizing utility and accessibilityÂ
Deep-tinted glass and refined exterior accents creating a bold, upscale road presenceÂ
Whether you’re hauling heavy equipment, towing a large trailer, or traveling in first-class comfort, the 2026 GMC Sierra 3500HD Denali delivers uncompromising capability, advanced technology, and unmistakable presence. It’s the ultimate blend of heavy-duty strength and premium sophistication; built for drivers who demand luxury without sacrificing power.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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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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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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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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LPO, Polished exhaust tip (dealer-installed) (Requires (L8T) 6.6L V8 gas engine. Not included with (L5P) Duramax 6.6L Turbo Diesel V8 engine.)
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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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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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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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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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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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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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Gasoline Fuel
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10-Speed A/T
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A/T
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Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
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Running Boards/Side Steps
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GVWR, 11,700 lbs. (5307 kg) with single rear wheels (Included and only available with model TK30943 model and (L8T) 6.6L V8 gas engine. Requires single rear wheels.)
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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 720 cold-cranking amps/80 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L8T) 6.6L V8 gas engine.)
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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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Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)
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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)30800
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)7700
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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)220
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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 CodeQF9
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Rear Tire Order CodeQF9
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Spare Tire Order CodeZYG
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Front Tire SizeLT275/65R20
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Rear Tire SizeLT275/65R20
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Spare Tire SizeLT275/70R18
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Front Wheel Size (in)20 x 8.5
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Rear Wheel Size (in)20 x 8.5
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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)80.04
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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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