Vehicle Details
Body Style
Truck
Engine
6.6L 8Cyl
Exterior Colour
Tan
Interior Colour
Black
Transmission
Automatic
Drivetrain
4×4
Stock
303034
Fuel Type
Diesel
Trim Details
4WD Crew Cab Standard Box SLE
Description
The 2026 GMC Sierra 3500HD SLE 4WD Crew Cab Standard Box delivers uncompromising heavy-duty capability with modern comfort and advanced technology. Built for serious towing, demanding worksites, and long-haul confidence, this professional-grade truck pairs Duramax diesel strength with refined SLE convenience and intelligent safety systems — making it a powerful partner for work and everyday driving alike.Â
Performance & CapabilityÂ
Engine: 6.6L Duramax® V8 Turbo-Diesel delivering immense torque and dependable heavy-duty performanceÂ
Transmission: Smooth and responsive 10-speed automatic transmission engineered for confident towing and haulingÂ
Drivetrain: Autotrac® two-speed 4WD transfer case for traction and control in challenging road and weather conditionsÂ
Rear Axle: 3.42 rear axle ratio optimized for balanced towing strength and highway efficiencyÂ
Exhaust Brake: Integrated diesel exhaust brake for improved downhill control while towing heavy loadsÂ
Cooling & Durability: Engine oil cooler, transmission oil cooler, and heavy-duty air filtration system for sustained performance under demanding workloadsÂ
Alternator: High-output 220-amp alternator to support electrical demands on the job siteÂ
Off-Road Capability: X31 Off-Road Package with off-road suspension, skid plates, hill descent control, and automatic locking rear differentialÂ
Trailering Equipment: Integrated trailer brake controller, hitch guidance, and advanced trailering technologies for effortless towingÂ
Gooseneck/5th Wheel Prep: Factory-installed gooseneck and fifth-wheel trailering prep package for maximum towing versatilityÂ
GVWR: Heavy-duty 12,100 lb rating designed for serious payload and trailer capabilityÂ
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Winter & Weather ComfortÂ
Heated Front Seats for warmth during cold Canadian wintersÂ
Heated Steering Wheel for additional cold-weather comfortÂ
Remote Start System to warm or cool the cabin before you step insideÂ
Dual-Zone Automatic Climate Control allowing driver and passenger personalized comfort settingsÂ
Rear Window Defogger to maintain visibility in harsh winter conditionsÂ
Engine Block Heater for reliable cold-weather startsÂ
Deep Tint Glass helping reduce glare and keep the cabin comfortable year-roundÂ
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Interior Comfort & ConvenienceÂ
Crew Cab Interior offering generous space for passengers and gearÂ
Front 40/20/40 Split Bench Seating providing flexibility for passengers or additional storageÂ
10-Way Power Driver Seat for customizable driving comfortÂ
Rear 60/40 Folding Bench Seat to expand cargo space inside the cabin when neededÂ
Power Windows with Express Up/Down and Power Door Locks for everyday convenienceÂ
Keyless Open & Push-Button Start for effortless entry and ignitionÂ
Automatic Dimming Rearview Mirror to reduce nighttime glareÂ
Manual Tilt & Telescoping Steering Column with steering wheel audio controls for ergonomic driving comfortÂ
All-Weather Floor Liners for durable interior protection in every seasonÂ
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Technology & ConnectivityÂ
13.4" GMC Premium Infotainment Touchscreen with Google Built-In for navigation, apps, and voice controlÂ
12" Digital Driver Information Center offering customizable vehicle and towing dataÂ
Wireless Apple CarPlay® & Android Autoâ„¢ for seamless smartphone integrationÂ
Wi-Fi Hotspot Capability to keep passengers connected on the roadÂ
SiriusXM® Radio Capability for expanded entertainment optionsÂ
Multiple USB Ports including second-row charging ports for passengersÂ
120V Power Outlet inside the cabin and 120V Bed-Mounted Outlet for powering tools or accessoriesÂ
In-Vehicle Trailering App for monitoring and managing trailer functionsÂ
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Safety & Driver AssistanceÂ
GMC Sierra HD Pro Safety suite designed to help keep you aware and protectedÂ
Forward Collision Alert with Automatic Emergency BrakingÂ
Front Pedestrian Braking for enhanced urban safetyÂ
Lane Departure Warning and Following Distance Indicator for safer highway drivingÂ
HD Surround Vision with Bed View Camera for easier maneuvering and traileringÂ
Trailer Side Blind Zone Alert to monitor blind spots while towingÂ
Rear Cross Traffic Alert for safer reversing in parking areasÂ
Front & Rear Park Assist for improved low-speed awarenessÂ
Teen Driver Mode and Buckle-to-Drive safety features promoting responsible driving habitsÂ
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Exterior Styling & UtilityÂ
18" Machined Aluminum Wheels with Dark Grey Metallic Accents paired with all-terrain tires for rugged capabilityÂ
LED Headlamps with IntelliBeam® Automatic High Beams for enhanced nighttime visibilityÂ
LED Roof Marker Lamps and LED Fog Lamps adding both style and functionalityÂ
Chrome Front and Rear Bumpers for a bold, professional appearanceÂ
Heated, Power-Adjustable Trailering Mirrors with power folding, integrated turn signals, and task lightingÂ
Spray-On Bedliner providing durable protection for the pickup bedÂ
EZ Lift Power Lock & Release Tailgate for easy loading and secure closureÂ
Rear Bumper CornerSteps for convenient access to the cargo bedÂ
Black Front Recovery Hooks ready for off-road situationsÂ
Bed View Camera & Trailer Camera Provisions for enhanced trailering visibilityÂ
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Whether hauling equipment to the jobsite, towing heavy trailers across the province, or tackling rugged terrain, the 2026 GMC Sierra 3500HD SLE delivers serious diesel power, intelligent towing technology, and dependable comfort. It’s a heavy-duty pickup engineered to work hard, tow with confidence, and keep you connected every mile of the journey.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 (Requires Crew Cab or Double Cab model.)
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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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Bumper, rear chrome 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 (Not available with (ZW9) pickup bed delete.)
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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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Taillamps, LED Signature Tail, Incandescent Brake, Turn & 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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Heated Mirrors
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Integrated Turn Signal Mirrors
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Power Mirror(s)
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Privacy Glass
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Tailgate, standard (Deleted with (ZW9) pickup bed delete.)
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Tailgate and bed rail protection caps, top (Deleted with (ZW9) pickup bed delete.)
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Split Bench Seat
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Cloth Seats
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Seat adjuster, driver 4-way manual
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Seat adjuster, passenger 4-way manual
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Pass-Through Rear Seat
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Rear Bench Seat
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Floor covering, colour-keyed carpeting
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Floor Mats
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Adjustable Steering Wheel
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Steering Wheel Audio Controls
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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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Window, power front, drivers express up/down
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Power Windows
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Power Door Locks
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Keyless Entry
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Keyless Start
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Cruise Control
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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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Air vents, rear (Not available with Regular Cab model.)
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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 electronic shift with push button controls (Requires 4WD models.)
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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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Suspension Package (Not available with (X31) Off-Road Package.)
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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. Not included with (ZW9) pickup bed delete.)
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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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Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering (Not available with (ZW9) pickup bed delete.)
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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 (Deleted with (ZW9) pickup bed delete.)
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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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Driver Restriction Features
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Seat Belt Adjustable Guide Loops, front row only (Included and only available on Crew Cab and Double Cab models. Not available with (ZW9) pickup bed delete.)
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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
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DrivetrainFour Wheel Drive
-
Trans Order CodeMGM
-
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 Capacity6
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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 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
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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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* 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 SLE may not match the exact vehicle displayed. Please confirm the accuracy of this information with a sales representative.
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