Vehicle Details
Body Style
Truck
Engine
6.6L 8Cyl
Exterior Colour
White
Interior Colour
Black
Transmission
Automatic
Drivetrain
4×4
Stock
303631
Fuel Type
Diesel
Trim Details
4WD Crew Cab Standard Box SLT
Description
The 2026 GMC Sierra 3500HD SLT combines professional-grade capability, premium comfort, and advanced diesel performance into one commanding heavy-duty pickup. Designed for serious towing, hard work, and long-haul confidence, this Crew Cab 4WD delivers rugged strength while surrounding passengers with refined technology and upscale craftsmanship. Â
Â
Performance & Capability Â
Duramax® 6.6L V8 Turbo-Diesel delivering exceptional torque and heavy-duty pulling power Â
Allison®-inspired 10-speed automatic transmission engineered for smooth shifting and confident towing Â
Autotrac® Two-Speed 4WD Transfer Case for dependable traction in challenging road and weather conditions Â
X31 Off-Road Package featuring Rancho® tuned suspension, skid plates, and hill descent control Â
Automatic Locking Rear Differential enhancing traction on rough terrain or slippery surfaces Â
Gooseneck / 5th Wheel Prep Package ready for serious towing and hauling demandsÂ
Integrated Trailer Brake Controller with Hitch Guidance and Hitch View for easier trailer alignment Â
Heavy-Duty Cooling System with Engine Oil Cooler and Transmission Oil Cooler for demanding workloads Â
Engine Exhaust Brake improving downhill control while towing heavy loads Â
FlexRide Drive Mode System allowing optimized performance across varying conditions Â
3.42 Rear Axle Ratio balancing towing strength with highway capability Â
Â
Winter & Weather Comfort Â
Heated & Ventilated Front Seats for year-round driving comfort Â
Heated Steering Wheel providing added warmth on cold mornings Â
Remote Vehicle Start System to pre-condition the cabin before every drive Â
Dual-Zone Automatic Climate Control for personalized comfort settings Â
Engine Block Heater and Winter Grille Cover supporting cold-weather operation Â
Rain-Sensing Windshield Wipers for enhanced visibility during changing weather Â
Deep-Tinted Glass helping reduce glare and maintain cabin comfort Â
Â
Interior Comfort & Convenience Â
Front Bucket Seats with Power Driver & Passenger Adjustments for premium comfort Â
Jet Black Interior with refined detailing and durable craftsmanship Â
Wireless Charging Pad and multiple USB ports for seamless device connectivity Â
Push-Button Start with Keyless Open for convenient entry and ignition Â
13.4" GMC Premium Infotainment Touchscreen with Google Built-In compatibility Â
Wireless Apple CarPlay® & Android Autoâ„¢ integration Â
12" Digital Driver Information Centre with customizable vehicle data Â
Bose® Premium Audio System delivering rich, immersive sound quality Â
Rear Seat Storage Package adding practical interior versatility Â
Heated, Power-Adjustable Trailering Mirrors with Auto-Dimming functionality Â
120V Power Outlets in both the cabin and truck bed for added utility on the jobsite or campsite Â
Â
Safety & Driver Assistance Â
Sierra HD Pro Safety Suite enhancing driver confidence and awareness Â
Forward Collision Alert with Automatic Emergency Braking Â
Front Pedestrian Braking for added safety in busy environments Â
Lane Departure Warning helping maintain confident highway travel Â
Following Distance Indicator for improved driver awareness Â
HD Rear Vision Camera simplifying parking and trailer positioning Â
Teen Driver Mode and Buckle-to-Drive safety technologies Â
Tire Pressure Monitoring System and Rear Seat Reminder for added peace of mind Â
Theft-Deterrent System helping protect your truck and belongings Â
Â
Exterior Styling & Utility Â
Exterior Colour: Summit White — clean, bold, and timeless with a commanding presence Â
20" Bright Face Aluminum Wheels with Dark Painted Accents for a rugged upscale appearance Â
Chrome Front & Rear Bumpers, Chrome Mirror Caps, and Chrome Door Handles for premium styling Â
Chrome Assist Steps for easier cab access Â
LED Headlamps, LED Fog Lamps, and LED Roof Marker Lamps for enhanced visibility Â
LED Cargo Bed Lighting improving nighttime functionality Â
Spray-On Bedliner protecting the truck bed from heavy-duty wear and tear Â
EZ Lift Power Lock & Release Tailgate for added everyday convenience Â
Bed-Mounted 120V Power Outlet ideal for tools, equipment, or recreational gear Â
Black Front Recovery Hooks adding rugged utility and off-road confidence Â
Rear Bumper CornerSteps making cargo access easier and more practical Â
Â
Whether you’re towing a large trailer, tackling demanding jobsite duties, or heading off the beaten path, the 2026 GMC Sierra 3500HD SLT delivers uncompromising capability, premium technology, and refined comfort. It’s a heavy-duty truck engineered to work hard while offering the sophistication and confidence expected from a GMC.Â
Â
Packages & Options
Standard Equipment
Technical Specifications
-
AM/FM Stereo
-
Auxiliary Audio Input
-
Bluetooth Connection
-
MP3 Player
-
Navigation System
-
Smart Device Integration
-
Requires Subscription
-
Satellite Radio
-
Audio system feature, 6-speaker system
-
WiFi Hotspot
-
Aluminum Wheels
-
Tires - Front All-Terrain
-
Tires - Rear All-Terrain
-
Conventional Spare Tire
-
Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
-
Bumper, front chrome lower
-
CornerStep, rear bumper
-
Mouldings, beltline, stainless steel
-
Cargo tie downs (12), fixed, rated at 500 lbs per corner
-
Grille, Chrome surround with Chrome insert bars
-
Daytime Running Lights
-
LED Headlights
-
Automatic Highbeams
-
Fog Lamps
-
Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
-
Heated Mirrors
-
Integrated Turn Signal Mirrors
-
Power Folding Mirrors
-
Power Mirror(s)
-
Mirror caps, chrome
-
Intermittent Wipers
-
Rain Sensing Wipers
-
Variable Speed Intermittent Wipers
-
Privacy Glass
-
Tailgate, standard
-
Tailgate and bed rail protection caps, top
-
Split Bench Seat
-
Leather Seats
-
Driver Adjustable Lumbar
-
Power Driver Seat
-
Passenger Adjustable Lumbar
-
Power Passenger Seat
-
Pass-Through Rear Seat
-
Rear Bench Seat
-
Heated Front Seat(s)
-
Mirror Memory
-
Seat Memory
-
Floor covering, colour-keyed carpeting
-
Floor Mats
-
Heated Steering Wheel
-
Adjustable Steering Wheel
-
Steering Wheel Audio Controls
-
Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
-
Exterior Temperature Display located in radio display
-
Compass, located in instrument cluster
-
Tire Pressure Monitor
-
Window, power front, drivers express up/down
-
Power Windows
-
Power Door Locks
-
Remote Engine Start
-
Keyless Entry
-
Keyless Start
-
Cruise Control
-
Security System
-
Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
-
Auxiliary Audio Input
-
MP3 Player
-
USB ports, (2) charge-only, rear
-
A/C
-
Climate Control
-
Multi-Zone A/C
-
Air vents, rear
-
Rear Defrost
-
Auto-Dimming Rearview Mirror
-
Assist handles, front A-pillar mounted for driver and passenger, rear B-pillar mounted
-
8 Cylinder Engine
-
Gasoline Fuel
-
10-Speed A/T
-
A/T
-
Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
-
Running Boards/Side Steps
-
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.)
-
Keyless Start
-
Air filter, heavy-duty
-
Air filtration monitoring
-
Transfer case, two-speed active electronic Autotrac with push button control
-
Locking/Limited Slip Differential
-
Four Wheel Drive
-
Cooling, external engine oil cooler
-
Cooling, auxiliary external transmission oil cooler
-
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.)
-
Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
-
Trailer brake controller, integrated
-
Tow Hooks
-
Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
-
Power Steering
-
4-Wheel Disc Brakes
-
ABS
-
Brake lining wear indicator
-
Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)
-
Automatic Highbeams
-
Front Collision Mitigation
-
Front Collision Warning
-
Lane Departure Warning
-
Tow Hitch
-
ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App
-
Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering
-
Front Collision Mitigation
-
Front Collision Warning
-
Stability Control
-
Traction Control
-
Daytime Running Lights
-
Driver Air Bag
-
Front Head Air Bag
-
Front Side Air Bag
-
Passenger Air Bag
-
Passenger Air Bag Sensor
-
Rear Head Air Bag
-
Requires Subscription
-
Telematics
-
Back-Up Camera
-
Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
-
Lane Departure Warning
-
Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
-
Rear Seat Reminder
-
Driver Restriction Features
-
Rear Seat Belt Indicator (Requires Crew Cab or Double Cab model.)
-
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)
-
Tire Pressure Monitor
No matches were found.
-
Vehicle NameGMC Sierra 3500HD
-
Body StyleCrew Cab Pickup
-
Body CodeE63
-
DrivetrainFour Wheel Drive
-
Trans Order CodeMGM
-
Trans Type10
-
Trans Description Cont.Automatic
-
First Gear Ratio (:1)4.54
-
Second Gear Ratio (:1)2.87
-
Third Gear Ratio (:1)2.06
-
Fourth Gear Ratio (:1)1.72
-
Fifth Gear Ratio (:1)1.48
-
Sixth Gear Ratio (:1)1.26
-
Seventh Gear Ratio (:1)1.00
-
Eighth Gear Ratio (:1)0.85
-
Ninth Gear Ratio (:1)0.69
-
Tenth Gear Ratio (:1)0.63
-
Reverse Ratio (:1)4.54
-
Passenger Capacity5
-
Front Head Room (in)39.88
-
Front Leg Room (in)44.53
-
Front Shoulder Room (in)66.02
-
Front Hip Room (in)61.18
-
Second Head Room (in)40.12
-
Second Leg Room (in)43.4
-
Second Shoulder Room (in)65.3
-
Second Hip Room (in)60.24
-
Gross Axle Wt Rating - Front (lbs)5600
-
Gross Axle Wt Rating - Rear (lbs)7250
-
Curb Weight - Front (lbs)4032
-
Curb Weight - Rear (lbs)2928
-
Gross Vehicle Weight Rating Cap (lbs)12100
-
Gross Combined Wt Rating (lbs)30000
-
Dead Weight Hitch - Max Trailer Wt. (lbs)5000
-
Dead Weight Hitch - Max Tongue Wt. (lbs)500
-
Wt Distributing Hitch - Max Trailer Wt. (lbs)20000
-
Wt Distributing Hitch - Max Tongue Wt. (lbs)2000
-
Fifth Wheel Hitch - Max Trailer Wt. (lbs)21600
-
Fifth Wheel Hitch - Max Tongue Wt. (lbs)5400
-
Maximum Trailering Capacity (lbs)20000
-
Engine Order CodeL5P
-
Engine TypeTurbocharged Diesel V8
-
Displacement6.6L
-
Fuel SystemDirect Injection
-
SAE Net Horsepower @ RPM470 @ 2800
-
SAE Net Torque @ RPM975 @ 1600
-
Engine Oil CoolerYes
-
Cold Cranking Amps @ 0° F (Primary)720
-
Maximum Alternator Capacity (amps)220
-
Frame TypeHydroformed
-
Suspension Type - FrontShort/Long Arm w/Torsion Bars
-
Suspension Type - Rear3-Stage Multi-Leaf
-
Axle Type - FrontIndependent
-
Axle Ratio (:1) - Front3.42
-
Axle Ratio (:1) - Rear3.42
-
Shock Absorber Diameter - Front (mm)51
-
Shock Absorber Diameter - Rear (mm)51
-
Stabilizer Bar Diameter - Front (in)1.38
-
Front Tire Order CodeQF9
-
Rear Tire Order CodeQF9
-
Spare Tire Order CodeZYG
-
Front Tire SizeLT275/65R20
-
Rear Tire SizeLT275/65R20
-
Spare Tire SizeLT275/70R18
-
Front Wheel Size (in)20 x 8.5
-
Rear Wheel Size (in)20 x 8.5
-
Spare Wheel Size (in)18 x 8
-
Front Wheel MaterialAluminum
-
Rear Wheel MaterialAluminum
-
Spare Wheel MaterialSteel
-
Steering TypePwr Recirculating Ball
-
Steering Ratio (:1), At LockN/A
-
Turning Diameter - Curb to Curb (ft)52.7
-
Turning Diameter - Wall to Wall (ft)N/A
-
Brake TypePwr
-
Brake ABS System4-Wheel
-
Disc - FrontYes
-
Disc - RearYes
-
Front Brake Rotor Diam x Thickness (in)14 x 1.6
-
Rear Brake Rotor Diam x Thickness (in)14.1 x 1.3
-
Fuel Tank Capacity, Approx (L)136
-
Wheelbase (in)158.94
-
Length, Overall (in)250.75
-
Width, Max w/o mirrors (in)81.85
-
Height, Overall (in)80.87
-
Cab to Axle (in)42.17
-
Ground Clearance, Front (in)11.18
-
Ground Clearance, Rear (in)11.18
-
Cargo Box Length @ Floor (in)82.2
-
Cargo Box Width @ Floor (in)71.4
-
Cargo Box Width @ Wheelhousings (in)51.85
-
Cargo Box (Area) Height (in)21
-
Cargo Volume (ft³)69.5
No matches were found.
Similar Vehicles
Crew Cab Standard Box 4-Wheel Drive AT4
VIN: 1GT4UPEY4TF251618
Crew Cab Short Box 4-Wheel Drive AT4X
VIN: 3GTUUFE85TG349095
City: 12.2L/100 km • Hwy: 12L/100 km
4WD Crew Cab Standard Box AT4
VIN: 1GT4UVEYXTF256746
Crew Cab Short Box 4-Wheel Drive Denali Ultimate
VIN: 1GTUUHEL6TZ357982
City: 16L/100 km • Hwy: 12.1L/100 km
* 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 SLT may not match the exact vehicle displayed. Please confirm the accuracy of this information with a sales representative.
Calculate Payments
Finance
Lease