Vehicle Details
Body Style
Truck
Engine
6.6L 8Cyl
Exterior Colour
Black
Interior Colour
Tan
Transmission
Automatic
Drivetrain
4×4
Stock
303623
Fuel Type
Diesel
Trim Details
4WD Crew Cab Standard Box Denali Ultimate
Description
The 2026 GMC Sierra 3500HD Denali Ultimate 4WD Crew Cab Standard Box represents the pinnacle of heavy-duty luxury and professional-grade capability. Combining bold Denali Ultimate styling, advanced trailering technology, and premium craftsmanship throughout, this diesel-powered powerhouse is engineered for drivers who demand uncompromising strength without sacrificing refinement or comfort.Â
Performance & CapabilityÂ
Engine: Duramax® 6.6L V8 Turbo-Diesel delivering exceptional torque, towing confidence, and heavy-duty durabilityÂ
Transmission: 10-speed automatic transmission providing smooth shifting and optimized performance under loadÂ
Drivetrain: Autotrac 4-Wheel Drive (4WD) with two-speed transfer case for confident capability in challenging terrain and weatherÂ
Suspension: Z71 Off-Road Suspension Package engineered for enhanced control and off-road confidenceÂ
Rear Axle Ratio: 3.42 rear axle ratio designed for balanced towing strength and highway efficiencyÂ
Trailering Equipment: Integrated trailer brake controller, hitch guidance with Hitch View, trailer camera provisions, and in-vehicle trailering appÂ
Gooseneck/5th Wheel Prep Package offering enhanced readiness for serious towing demandsÂ
Off-Road Capability: Hill Descent Control, skid plates, all-terrain tires, and automatic locking rear differential for added confidence off the pavementÂ
Exhaust Brake System improving downhill control and towing stabilityÂ
Heavy-Duty Cooling Systems including engine oil and transmission oil coolers for demanding workloadsÂ
Digital Variable Steering Assist helping deliver precise handling and maneuverabilityÂ
Winter & Weather ComfortÂ
Heated & Ventilated Front Seats keeping occupants comfortable in every seasonÂ
Heated Rear Outboard Seats adding premium second-row comfortÂ
Heated Steering Wheel for added warmth on cold morningsÂ
Remote Start System allowing the cabin to warm up or cool down before departureÂ
Dual-Zone Automatic Climate Control maintaining personalized comfort for driver and passengerÂ
Engine Block Heater supporting reliable cold-weather startsÂ
Rain-Sensing Windshield Wipers automatically adapting to changing weather conditionsÂ
Winter Grille Cover helping optimize cold-weather diesel operationÂ
Interior Comfort & LuxuryÂ
Denali Ultimate Interior featuring premium Alpine Umber leather-appointed seating and authentic upscale detailingÂ
Front Bucket Seats with power driver and passenger adjustments, lumbar support, and memory settingsÂ
Driver & Front Passenger Massage Seats delivering elevated long-distance comfortÂ
Power Adjustable Seat Bolsters for enhanced support and customizationÂ
Power Sliding Rear Window adding ventilation and convenienceÂ
Rear Seat Storage Package maximizing interior utility and organizationÂ
Wireless Charging Pad and multiple USB/120V power outlets for modern connectivityÂ
Keyless Open & Push-Button Start for seamless entry and operationÂ
Wireless Apple CarPlay® & Android Autoâ„¢ compatibility for effortless smartphone integrationÂ
Premium 13.4" GMC Infotainment Touchscreen with Google Built-In compatibility and navigation capabilityÂ
12" Digital Driver Information Centre with customizable vehicle and towing informationÂ
Head-Up Display projecting key driving information directly onto the windshieldÂ
Bose® Premium Audio System delivering immersive sound quality throughout the cabinÂ
Rear Camera Mirror providing an expanded rearward field of viewÂ
Power Sunroof bringing added openness and natural light into the cabinÂ
Wi-Fi® Hotspot Capability helping passengers stay connected on the roadÂ
Safety & Driver AssistanceÂ
Sierra HD Pro Safety Package enhancing awareness and driver confidenceÂ
Forward Collision Alert with Automatic Emergency Braking for added protection in trafficÂ
Front Pedestrian Braking helping detect and respond to pedestrians aheadÂ
Lane Departure Warning providing added highway awarenessÂ
Adaptive Cruise Control helping reduce driver fatigue on long tripsÂ
HD Surround Vision delivering a detailed 360-degree perspective when parking or maneuveringÂ
Front & Rear Park Assist simplifying tight parking situationsÂ
Trailer Side Blind Zone Alert improving awareness while towingÂ
Rear Cross Traffic Alert for added confidence when reversingÂ
Bed View Camera assisting with cargo monitoring and trailer hookupsÂ
Following Distance Indicator and Driver Safety Alert Seat helping increase driver awarenessÂ
Teen Driver Mode and Buckle-to-Drive features promoting safer driving habitsÂ
Exterior Styling & UtilityÂ
Exterior Colour: Onyx Black — deep, bold, and sophisticated with commanding road presenceÂ
20" Machined Aluminum Wheels paired with all-terrain tires for premium style and rugged capabilityÂ
Signature LED Headlamps, LED Fog Lamps, Roof Marker Lamps, and LED Cargo Bed Lighting for enhanced visibilityÂ
GMC MultiPro Tailgate offering multiple configurations for loading, step access, and workstation versatilityÂ
MultiPro Tailgate Audio System by Kicker® adding entertainment functionality for worksites and tailgatesÂ
EZ Lift Power Lock & Release Tailgate for added convenience and ease of operationÂ
Spray-On Bedliner protecting the cargo box from heavy-duty wear and tearÂ
120-Volt Bed-Mounted Power Outlet providing practical worksite capabilityÂ
Power-Retractable Assist Steps with LED Perimeter Lighting offering premium convenience and styleÂ
Chrome Recovery Hooks, Chrome Mirror Caps, and Chrome Door Handles adding upscale Denali Ultimate characterÂ
Deep-Tinted Glass and body-colour wheel arch mouldings enhancing the truck’s premium appearanceÂ
Rear Wheelhouse Liners and CornerStep Rear Bumper improving durability and bed accessibilityÂ
Whether you’re hauling heavy equipment, towing a large RV, or enjoying long-distance road trips, the 2026 GMC Sierra 3500HD Denali Ultimate delivers extraordinary diesel capability, advanced technology, and first-class luxury. It’s the ultimate heavy-duty pickup for drivers who expect uncompromising power with premium 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
-
Body StyleCrew Cab Pickup
-
Body CodeE63
-
DrivetrainFour Wheel Drive
-
Trans Order CodeMGM
-
Trans Type10
-
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
-
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
-
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
-
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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* Every reasonable effort is made to ensure the accuracy of the information listed above. Vehicle pricing, incentives, options (including standard equipment), and technical specifications listed is for the 2026 GMC Sierra 3500HD Denali Ultimate may not match the exact vehicle displayed. Please confirm the accuracy of this information with a sales representative.
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