Experience the unmatched luxury and power of the new 2026 GMC Sierra 3500HD Denali, finished in a stunning Onyx Black and equipped with an advanced 4×4 drivetrain. This truck is designed to handle any terrain with ease, thanks to features such as the robust 6.6L Turbo-Diesel V8 engine and 10-speed automatic transmission, delivering incredible torque and horsepower.
Step inside to the opulently appointed interior featuring Atmosphere/Brownstone Forge perforated leather seating surfaces that provide both comfort and style. The power sunroof adds an extra touch of luxury, while the power-retractable assist steps ensure easy access. This Sierra Denali is built to impress from every angle and comes complete with 20" ultra-bright machined wheels that accentuate its strong stance.
Stay connected and safe with the latest technology and driver assistance features. The 13.4" diagonal premium GMC infotainment system offers Google-built apps, navigation, and a host of streaming options including SiriusXM for three years. Safety is enhanced with the cutting-edge Technology Package that includes a multicolour 15" diagonal Head-Up Display and a rear camera mirror providing a full camera display.
The 2026 GMC Sierra 3500HD Denali is perfect for those who demand prestige and performance in equal measure. Whether you're towing a heavy load or cruising in comfort, this truck has got you covered with features such as adaptive cruise control, heated and cooled seats, and advanced safety systems. Contact Gary Moe Chevrolet Buick GMC today to learn more about how this exceptional vehicle can be yours.
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Denali Preferred Equipment Group • 5SAincludes standard equipment
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Engine, Duramax 6.6L Turbo-Diesel V8, B20-Diesel Compatible • L5P(470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)
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Transmission, 10-Speed Automatic • MGM
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Gvwr, 12,100 Lbs. (5488 Kg) With Single Rear Wheels • G4Y
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Rear Axle, 3.42 Ratio • GU6
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Wheels, 20" (50.8 Cm) Ultra-Bright Machined Wheels With Bright Chrome Inserts • Q7Fwith Black painted pockets
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Onyx Black • GBA
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Seats, Front Bucket With Centre Console • A50
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Atmosphere/Brownstone, Forge Perforated Leather Seating Surfaces • H24
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Audio System, 13.4" Diagonal Premium Gmc Infotainment System • IOKwith Google built in apps such as navigation and voice assistance, includes colour touch-screen, multi-touch display, AM/FM stereo, Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones.
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Denali Reserve Package • PECincludes (CWM) Technology Package and (CF5) power sunroof
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Technology Package • CWMincludes (DRZ) Rear Camera Mirror and (UV6) Multicolour 15" Diagonal Head-Up Display
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Engine Block Heater • K05
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Alternator, 220 Amps • KW5
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Exhaust Brake • K40
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Sunroof, Power • CF5
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Assist Steps, Power-Retractable • BRSwith LED perimeter lighting and bright accent
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Winter Grille Cover • BHP
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Multicolour 15" Diagonal Head-Up Display • UV6
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Rear Camera Mirror • DRZinside rearview auto-dimming with full camera display
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3 Years Siriusxm • R6P
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Air Conditioning
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Alloy Wheels
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Backup Camera
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Bluetooth Connection
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Cooled Seats
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Cruise Control
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Heated Seats
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Keyless Entry
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Lane Assist
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Leather Seats
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Navigation System
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Parking Sensors
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Power Seats
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Power Windows
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Remote Start
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Running Boards
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Satellite Radio
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Smart Device Integration
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Wi-Fi Hotspot
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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, 11,550 lbs. (5239 kg) with single rear wheels (Included and only available with TK30743 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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Alternator, 170 amps (Requires (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
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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)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)21200
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)5300
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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)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)80.87
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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
- Cash Discount -$3,651
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Non-Stackable Cash Delivery Allowance (NSCDA) - CBG
Required packages: 1LZ-$5,000
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Body StyleTruck
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Engine6.6L
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Exterior ColourRed
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TransmissionAutomatic
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Drivetrain4×4
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Stock6SL32412
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Fuel TypeDiesel
- Cash Discount -$3,651
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Non-Stackable Cash Delivery Allowance (NSCDA) - CBG
Required packages: 1LZ-$5,000
- Cash Discount -$3,551
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Non-Stackable Cash Delivery Allowance (NSCDA) - CBG
Required packages: 1LZ-$5,000
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Body StyleTruck
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Engine6.6L
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Exterior ColourGray
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TransmissionAutomatic
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Drivetrain4×4
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Stock6SL32405
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Fuel TypeDiesel
- Cash Discount -$3,551
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Non-Stackable Cash Delivery Allowance (NSCDA) - CBG
Required packages: 1LZ-$5,000
- Cash Discount -$5,055
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Non-Stackable Cash Delivery Allowance (NSCDA) - CBG
Required packages: 5SA-$5,000
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Body StyleTruck
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Engine6.6L
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Exterior ColourSilver
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TransmissionAutomatic
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Drivetrain4×4
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Stock6SR39230
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Fuel TypeDiesel
- Cash Discount -$5,055
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Non-Stackable Cash Delivery Allowance (NSCDA) - CBG
Required packages: 5SA-$5,000
- Cash Discount -$4,510
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Non-Stackable Cash Delivery Allowance (NSCDA) - CBG
Required packages: 5SA-$5,000
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Body StyleTruck
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Engine6.6L
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Exterior ColourBlack
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TransmissionAutomatic
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Drivetrain4×4
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Stock6SR31318
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Fuel TypeDiesel
- Cash Discount -$4,510
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Non-Stackable Cash Delivery Allowance (NSCDA) - CBG
Required packages: 5SA-$5,000
- Cash Discount -$5,045
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Non-Stackable Cash Delivery Allowance (NSCDA) - CBG
Required packages: 5SA-$5,000
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Body StyleTruck
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Engine6.6L
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Exterior ColourWhite
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TransmissionAutomatic
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Drivetrain4×4
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Stock6SR37778
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Fuel TypeDiesel
- Cash Discount -$5,045
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Non-Stackable Cash Delivery Allowance (NSCDA) - CBG
Required packages: 5SA-$5,000
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Cash Discount-$2,213
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Non-Stackable Cash Delivery Allowance (NSCDA) - CBGRequired packages: 5SA-$5,000Valid from 2026/06/05 - 2026/06/30
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Cash Discount-$2,213
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Cash Discount-$2,213