New 2026 GMC Sierra 3500HD AT4

New 2026 GMC Sierra 3500HD AT4

6.85ft Box Length
Sold
Vehicle Details
    Body Style
    Truck
    Engine
    6.6L 8Cyl
    Exterior Colour
    White
    Transmission
    Automatic
    Drivetrain
    4×4
    Doors
    4
    VIN
    1GT4UVEY0TF142626
    Stock
    60752
    Condition
    New
    Trim Details
    4WD Crew Cab Standard Box AT4

Conquer the Canadian Terrain with Power and Precision: The 2026 GMC Sierra 3500HD AT4 Crew Cab 4WD is Your Ultimate Adventure Companion

Introducing the 2026 GMC Sierra 3500HD AT4, a robust powerhouse engineered for those who demand exceptional performance and rugged capability. With its commanding Duramax 6.6L Turbo-Diesel V8 engine, generating an impressive 470 horsepower and 975 lb-ft of torque, this truck is built to tackle the toughest Canadian landscapes. Its advanced 10-speed automatic transmission ensures smooth handling and optimal fuel efficiency, making every journey both powerful and economical.

The Sierra 3500HD AT4 is designed with the adventurous driver in mind. Its 4x4 drivetrain, coupled with a locking/limited slip differential and turbocharged powertrain, guarantees superior traction and control, whether you're navigating snowy mountains or muddy trails. The integrated tailgate step and running boards provide easy access to the truck bed, while the bed liner protects against the elements.

Inside, luxury meets functionality with leather seats, heated and cooled front seats, and a heated steering wheel, ensuring comfort in any climate. The advanced safety suite, including blind spot monitoring, lane departure warning, and front collision mitigation, offers peace of mind on every drive. With adaptive cruise control and a premium sound system, the Sierra 3500HD AT4 transforms every journey into a seamless blend of power and refinement.

Installed Packages
  • At4 Preferred Equipment Group • 4SB
    includes standard equipment
  • 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.)
No matches were found.
Options
  • Air Conditioning
  • Alloy Wheels
  • Backup Camera
  • Bluetooth Connection
  • Cooled Seats
  • Cruise Control
  • Heated Seats
  • Keyless Entry
  • Lane Assist
  • Leather Seats
  • Navigation System
  • Parking Sensors
  • Power Seats
  • Power Windows
  • Remote Start
  • Running Boards
  • Satellite Radio
  • Smart Device Integration
  • Wi-Fi Hotspot
No matches were found.
Entertainment
  • AM/FM Stereo
  • Auxiliary Audio Input
  • Bluetooth Connection
  • MP3 Player
  • Navigation System
  • Smart Device Integration
  • Requires Subscription
  • Satellite Radio
  • Premium Sound System
  • WiFi Hotspot
Exterior
  • 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, body-colour lower
  • Bumper, rear body-colour with bumper CornerSteps
  • CornerStep, rear bumper
  • Bed Step, Black integrated on forward portion of bed on driver and passenger side
  • Mouldings, beltline, Black
  • Wheelhouse liners, rear
  • Bed Liner
  • Cargo tie downs (12), fixed, rated at 500 lbs per corner
  • Grille, Gloss Black header and grille insert bars with Black chrome accents
  • Daytime Running Lights
  • LED Headlights
  • Automatic Highbeams
  • Fog Lamps
  • Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
  • Lamps, cargo area, cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
  • LED Cargo Area Lighting located in cargo bed activated with switch on centre switch bank or key fob
  • Heated Mirrors
  • Integrated Turn Signal Mirrors
  • Power Folding Mirrors
  • Power Mirror(s)
  • Mirror caps, high gloss Black
  • Intermittent Wipers
  • Rain Sensing Wipers
  • Variable Speed Intermittent Wipers
  • Privacy Glass
  • Door handles, body-colour
  • Integrated Tailgate Step
  • Tailgate and bed rail protection caps, top
  • Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
Interior
  • Bucket Seats
  • 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)
  • Cooled Front Seat(s)
  • Heated Rear Seat(s)
  • Mirror Memory
  • Seat Memory
  • Centre Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
  • 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
  • GMC Premium information Display- 13.4" diagonal Multicolour touch screen
  • 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
  • Adaptive Cruise Control
  • Cruise Control
  • Security System
  • Wireless Charging
  • Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
  • USB ports, (2) charge-only, rear
  • Auxiliary Audio Input
  • MP3 Player
  • Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
  • 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
Mechanical
  • 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
  • Skid Plates protect the oil pan, front axle and transfer case
  • Suspension, Off-Road includes twin-tube shocks
  • Power Steering
  • 4-Wheel Disc Brakes
  • ABS
  • Brake lining wear indicator
  • Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)
Package
  • Automatic Highbeams
  • Front Collision Mitigation
  • Front Collision Warning
  • Lane Departure Warning
  • X31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocks
  • Tow Hitch
  • ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App
Processing-other
  • Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering
Safety
  • Front Collision Mitigation
  • Front Collision Warning
  • Stability Control
  • Traction Control
  • Hill Descent 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
  • Rear Parking Aid
  • Aerial View Display System
  • Back-Up Camera
  • 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
  • Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
  • Trailer Camera Provisions and trailer viewing software
  • Cross-Traffic Alert
  • Blind Spot Monitor
  • Lane Departure Warning
  • Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
  • Safety Alert Seat
  • Rear Seat Reminder
  • Driver Restriction Features
  • Seat Belt Adjustable Guide Loops, front row only
  • 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.
Summary
  • Vehicle Name
    GMC Sierra 3500HD
  • Body Style
    Crew Cab Pickup
  • Body Code
    E63
Transmission
  • Drivetrain
    Four Wheel Drive
  • Trans Order Code
    MKM
  • Trans Type
    10
  • Trans Description Cont.
    Automatic
  • First Gear Ratio (:1)
  • Second Gear Ratio (:1)
  • Third Gear Ratio (:1)
  • Fourth Gear Ratio (:1)
  • Fifth Gear Ratio (:1)
  • Sixth Gear Ratio (:1)
  • Seventh Gear Ratio (:1)
  • Eighth Gear Ratio (:1)
  • Ninth Gear Ratio (:1)
  • Tenth Gear Ratio (:1)
  • Reverse Ratio (:1)
Interior dimensions
  • Passenger Capacity
    5
  • 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
Weight information
  • Gross Axle Wt Rating - Front (lbs)
    5600
  • Gross Axle Wt Rating - Rear (lbs)
    7250
  • Gross Vehicle Weight Rating Cap (lbs)
    11550
  • Gross Combined Wt Rating (lbs)
    30000
Trailering
  • 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)
    21300
  • Fifth Wheel Hitch - Max Tongue Wt. (lbs)
    5325
  • Maximum Trailering Capacity (lbs)
    20000
Engine
  • Engine Order Code
    L5P
  • Engine Type
    Turbocharged Diesel V8
  • Displacement
    6.6L
  • Fuel System
    Direct Injection
  • SAE Net Horsepower @ RPM
    470 @ 2800
  • SAE Net Torque @ RPM
    975 @ 1600
  • Engine Oil Cooler
    Yes
Electrical
  • Cold Cranking Amps @ 0° F (Primary)
    720
  • Maximum Alternator Capacity (amps)
    170
Frame
  • Frame Type
    Hydroformed
Suspension
  • Suspension Type - Front
    Short/Long Arm w/Torsion Bars
  • Suspension Type - Rear
    3-Stage Multi-Leaf
  • Axle Type - Front
    Independent
  • Axle Ratio (:1) - Front
    3.73
  • Axle Ratio (:1) - Rear
    3.73
  • Shock Absorber Diameter - Front (mm)
    51
  • Shock Absorber Diameter - Rear (mm)
    51
  • Stabilizer Bar Diameter - Front (in)
    1.38
Tires
  • Front Tire Order Code
    QF6
  • Rear Tire Order Code
    QF6
  • Spare Tire Order Code
    ZYG
  • Front Tire Size
    LT275/70R18
  • Rear Tire Size
    LT275/70R18
  • Spare Tire Size
    LT275/70R18
Wheels
  • Front Wheel Size (in)
    18 x 8
  • Rear Wheel Size (in)
    18 x 8
  • Spare Wheel Size (in)
    18 x 8
  • Front Wheel Material
    Aluminum
  • Rear Wheel Material
    Aluminum
  • Spare Wheel Material
    Steel
Steering
  • Steering Type
    Pwr Recirculating Ball
  • Steering Ratio (:1), At Lock
    N/A
  • Turning Diameter - Curb to Curb (ft)
    52.7
  • Turning Diameter - Wall to Wall (ft)
    N/A
Brakes
  • Brake Type
    Pwr
  • Brake ABS System
    4-Wheel
  • Disc - Front
    Yes
  • Disc - Rear
    Yes
  • 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
  • Fuel Tank Capacity, Approx (L)
    136
Exterior dimensions
  • Wheelbase (in)
    158.94
  • Length, Overall (in)
    250.75
  • Width, Max w/o mirrors (in)
    81.85
  • Height, Overall (in)
    81.2
  • Cab to Axle (in)
    42.17
  • Ground Clearance, Front (in)
    11.18
  • Ground Clearance, Rear (in)
    11.18
Cargo area dimensions
  • 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
XLT AWD SuperCrew
VIN: 3FTTW8J36TRA31907
City: 5.9L/100 km • Hwy: 7L/100 km
  • Body Style
    Truck
  • Engine
    2.5L
  • Exterior Colour
    White
  • Transmission
    Automatic
  • Drivetrain
    AWD
  • Stock
    57A31907
Finance from
$158 w
$47,695.00 x 84 months @ 5.49% APR with $0.00 down payment (estimated financing rate, cost of borrowing $9,775.01). Plus taxes and licence.
Our Price
$47,695
Price does not include taxes, $699 documentation fee, $589 finance/lease placement fee or licensing fees.
Crew Cab Short Box 4-Wheel Drive RST
VIN: 2GCUKEED3S1211365
City: 13.7L/100 km • Hwy: 12L/100 km
  • Body Style
    Truck
  • Engine
    5.3L
  • Exterior Colour
    Black
  • Transmission
    Automatic
  • Drivetrain
    4×4
  • Stock
    M26-0061P
  • 12,010 km
Certified
Crew Cab Standard Box 4-Wheel Drive LT Trail Boss
VIN: 3GCUKFEL8TG237899
City: 17.1L/100 km • Hwy: 14L/100 km
  • Body Style
    Truck
  • Engine
    6.2L
  • Exterior Colour
    Black
  • Transmission
    Automatic
  • Drivetrain
    4×4
  • Stock
    6026-37899
Finance from
$553 bw
$90,693.00 x 84 months @ 2.99% APR with $0.00 down payment (4.73% effective rate, cost of borrowing $9,873.81). Plus taxes and licence.
Lease from
$530 bw
$90,693.00 x 48 months @ 3.9% APR with $0.00 down payment (16,000 km/yr lease allowance, 5.9% effective rate, cost of borrowing $10,815.20). Plus taxes and licence.
Suggested Price:
$90,693
Our Price
$85,693
Price does not include taxes and licensing fees.
Crew Cab Short Box 4-Wheel Drive RST
VIN: 3GCUKEED9TG229832
City: 13.7L/100 km • Hwy: 11.8L/100 km
  • Body Style
    Truck
  • Engine
    5.3L
  • Exterior Colour
    Red
  • Transmission
    Automatic
  • Drivetrain
    4×4
  • Stock
    6026-29832
Finance from
$465 bw
$76,308.00 x 84 months @ 2.99% APR with $0.00 down payment (5.07% effective rate, cost of borrowing $8,307.70). Plus taxes and licence.
Lease from
$392 bw
$76,308.00 x 48 months @ 3.9% APR with $0.00 down payment (16,000 km/yr lease allowance, 6.19% effective rate, cost of borrowing $9,557.62). Plus taxes and licence.
Suggested Price:
$76,308
Our Price
$71,308
Price does not include taxes and licensing fees.
4WD Crew Cab Long Box AT4
VIN: 1GT4UVEY6TF148382
  • Body Style
    Truck
  • Engine
    6.6L
  • Transmission
    Automatic
  • Drivetrain
    4×4
  • Stock
    4326-196
Finance from
$378 w
Price includes all fees and charges, except for GST. Prices subject to change without notice. AMVIC Licensed.
Lease from
$461 w
Price includes all fees and charges, except for GST. Prices subject to change without notice. AMVIC Licensed.
Suggested Price:
$120,068
Our Price
$117,068
Price includes all fees and charges, except for GST. Prices subject to change without notice. AMVIC Licensed.
LARIAT 4WD SuperCrew 6.5' Box
VIN: 1FTFW5L83TFA24589
  • Body Style
    Truck
  • Engine
    3.5L
  • Exterior Colour
    Blue
  • Transmission
    Automatic
  • Drivetrain
    4×4
  • Stock
    4226056
Our Price
$86,240
Price includes all fees and charges, except for GST. Prices subject to change without notice. AMVIC Licensed.