Vehicle Details
Body Style
Truck
Engine
6.6L 8Cyl
Exterior Colour
White
Interior Colour
Black
Transmission
Automatic
Drivetrain
4×4
Stock
303451
Fuel Type
Diesel
Trim Details
4WD Crew Cab Standard Box SLT
Description
The 2026 GMC Sierra 3500HD SLT 4WD Crew Cab Standard Box delivers uncompromising heavy-duty strength wrapped in premium SLT refinement. Built for serious towing, confident off-road capability, and long-haul comfort, it blends professional-grade engineering with modern luxury — designed for those who demand maximum capability without sacrificing sophistication.Â
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Performance & CapabilityÂ
Engine: Legendary 6.6L Duramax Turbo-Diesel V8 delivering immense torque for heavy towing, hauling, and grade-climbing confidenceÂ
Transmission: 10-speed automatic for smooth, intelligent power delivery under load or at highway speedsÂ
Drivetrain: Autotrac 2-speed 4WD system for on-demand traction across mud, snow, gravel, and pavementÂ
Axle Ratio: 3.42 rear axle engineered for balanced towing strength and highway efficiencyÂ
Maximum GVWR: Heavy-duty 12,100 lb class engineering for serious work capabilityÂ
Exhaust Brake: Integrated diesel exhaust braking for controlled downhill towing confidenceÂ
Cooling & Monitoring: Heavy-duty engine oil, transmission, and air filtration systems designed for extreme-duty cyclesÂ
Off-Road Engineering: X31 Off-Road Package with skid plates, hill descent control, and Rancho-tuned twin-tube shocks for rugged terrain confidenceÂ
Differential: Automatic locking rear differential for maximum traction under loadÂ
Trailering System: Advanced integrated trailer brake controller, hitch guidance, and Hitch View for precise coupling and towing controlÂ
Gooseneck/5th Wheel Prep: Factory-ready configuration for heavy commercial or recreational towing setupsÂ
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Winter & Weather ConfidenceÂ
Engine Block Heater for dependable cold-weather starts in extreme Canadian wintersÂ
Heated exterior mirrors with power adjust and auto-dimming functionalityÂ
Remote Start System to pre-condition cabin temperature before entryÂ
Heavy-duty defrost and reinforced heating system for rapid cabin warm-upÂ
Rain-sensing wipers and rear window defogger for low-visibility driving conditionsÂ
Winter grille cover included for improved cold-weather engine efficiencyÂ
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Interior Comfort & ConvenienceÂ
Front Bucket Seats with power adjustability and driver memory settings for personalized comfortÂ
Heated and ventilated front seats for year-round climate comfortÂ
Heated steering wheel wrapped in premium material for cold-weather driving easeÂ
Dual-zone automatic climate control with rear air vents for balanced cabin comfortÂ
Premium Jet Black interior with refined SLT-level trim detailingÂ
Wireless charging pad plus multiple USB ports and 120V outlets for device connectivityÂ
Keyless Open and Push-Button Start for seamless entry and operationÂ
Power windows with express up/down functionality across all rowsÂ
Rear seat storage package for added cabin utility and organizationÂ
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Technology & ConnectivityÂ
13.4-inch GMC Premium Infotainment System with Google Built-In integrationÂ
12.3-inch fully digital driver display with customizable vehicle dataÂ
Wireless Apple CarPlay and Android Auto for seamless smartphone integrationÂ
Bose Premium Audio System delivering rich, immersive cabin soundÂ
Wi-Fi hotspot capability for on-the-go connectivityÂ
Wireless phone projection and advanced infotainment interface for intuitive controlÂ
Integrated trailering app for real-time towing data and trailer managementÂ
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Safety & Driver AssistanceÂ
GMC Pro Safety Suite with advanced collision prevention technologiesÂ
Forward Collision Alert with Automatic Emergency BrakingÂ
Lane Departure Warning and Lane Keep Assist for highway confidenceÂ
Front Pedestrian Braking and Following Distance Indicator for urban awarenessÂ
HD Rear Vision Camera with available Hitch View for precise trailer alignmentÂ
Rear Cross Traffic Alert and Trailer Side Blind Zone Alert for towing safetyÂ
Front and Rear Park Assist for maneuvering in tight spacesÂ
Teen Driver Mode and Buckle to Drive safety systems for added accountabilityÂ
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Exterior Styling & UtilityÂ
Bold SLT exterior with chrome accents, chrome mirror caps, and chrome door handlesÂ
20-inch bright face aluminum wheels with dark painted pockets for a rugged premium stanceÂ
All-terrain tires engineered for mixed-road and off-road performanceÂ
LED headlamps, fog lamps, and cargo bed lighting for maximum visibilityÂ
EZ Lift Power Lock and Release Tailgate for effortless bed accessÂ
Spray-on bedliner for durable cargo protection under heavy useÂ
120V bed-mounted power outlet for tools, equipment, or campsite power needsÂ
Chrome assist steps and rear bumper corner steps for easy cabin and bed accessÂ
Black recovery hooks and skid protection for functional off-road readinessÂ
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The 2026 GMC Sierra 3500HD SLT 4WD stands as a powerful fusion of diesel-driven capability, advanced towing intelligence, and premium refinement. Whether hauling heavy loads, navigating job sites, or heading into the backcountry, it delivers unmatched strength, modern technology, and confident luxury in every mile.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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Audio system feature, 6-speaker 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 chrome lower
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CornerStep, rear bumper
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Mouldings, beltline, stainless steel
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Cargo tie downs (12), fixed, rated at 500 lbs per corner
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Grille, Chrome surround with Chrome insert bars
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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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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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Tailgate, standard
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Tailgate and bed rail protection caps, top
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Split Bench Seat
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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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Mirror Memory
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Seat Memory
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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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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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Cruise Control
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Security System
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Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
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Auxiliary Audio Input
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MP3 Player
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USB ports, (2) charge-only, rear
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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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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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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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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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Back-Up Camera
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Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
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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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Rear Seat Reminder
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Driver Restriction Features
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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)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)21600
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Fifth Wheel Hitch - Max Tongue Wt. (lbs)5400
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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
No matches were found.
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