Name: 2026 GMC Sierra 2500HD Crew Cab Standard Box 4-Wheel Drive AT4
Brand: GMC
SKU: T26421
Price: 118859 CAD
Availability: InStock

Vehicle Details

Body Style

Truck

Engine

6.6L 8Cyl

Exterior Colour

Black

Interior Colour

Black

Transmission

Automatic

Drivetrain

4×4

Doors

VIN

1GT4UPEY3TF157990

Stock #

T26421

Condition

New

Trim Details

Crew Cab Standard Box 4-Wheel Drive AT4

Experience the power and sophistication of the black 2026 GMC Sierra 2500HD AT4 Crew Cab Standard Box 4-Wheel Drive. Built for those who demand both performance and style, this truck's 4x4 drivetrain is ready to conquer any terrain with confidence.

The exterior's bold black finish is accented by rugged alloy wheels and functional running boards, making a statement on every road. Inside, the luxurious black leather seats offer both heated and cooled options for ultimate comfort year-round. The spacious cabin is equipped with key features like air conditioning, a remote start feature, and power windows for added convenience.

Stay connected and secure with advanced technology that includes a user-friendly navigation system, bluetooth connectivity, a wi-fi hotspot, and smart device integration. Safety is paramount, with features such as a backup camera, parking sensors, lane assist, and adaptive cruise control ensuring peace of mind on every journey.

This truck is perfect for outdoor enthusiasts and professionals who value reliability and impeccable styling. Contact us today to learn more about the 2026 GMC Sierra 2500HD AT4 and take the first step towards owning this remarkable vehicle.

Packages & Options

Standard Equipment

Technical Specifications

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.)
Transmission, 10-Speed Automatic • MGM
Gvwr, 11,350 Lbs. (5148 Kg) • JGL
Rear Axle, 3.42 Ratio • GU6
Wheels, 20" (50.8 Cm) High Gloss Black Aluminum Wheels • Q7N

8 spokes
Tires, Lt275/65R20 All-Terrain, Blackwall • QF9
Onyx Black • GBA
Seats, Front Bucket • A50

with centre console
Jet Black With Kalahari Accents, Perforated Front Leather Seat Trim • HVD
Audio System, 13.4" Diagonal Premium Gmc Infotainment System With Google Built In Apps Such As Navigation And Voice Assistance • IOK

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
At4 Premium Plus Package • PDG

includes (PDO) AT4 Preferred Package, (CF5) power sunroof, (CWM) Technology Package and (VXW) AT4 high clearance step, LPO
Technology Package • CWM

includes (DRZ) Rear Camera Mirror and (UV6) Multicolour 15" Diagonal Head-Up Display
At4 Preferred Package • PDO

includes (UG1) Universal Home Remote, (A48) rear sliding power window and (U01) Roof Marker Lamps
Lpo, Black Badging Package • RFE

(dealer-installed), includes (SFZ) Black GMC emblems, LPO, and (RIK) Black Sierra Nameplates, LPO.
Engine Block Heater • K05
Alternator, 220 Amps • KW5
Gooseneck / 5Th Wheel Prep Package -- Hitch Platform To Accept Gooseneck Or 5Th Wheel Hitch. • Z6A

Includes hitch platform with tray to accept ball, stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).
Exhaust Brake • K40
Sunroof, Power • CF5
Assist Steps, Power Retractable, Black • B3L

includes LED lighting
Lpo, Hard Folding Truck Bed Cover By Realtruck Advantage • VOZ

(dealer-installed)
Lpo, Body Colour Wheel Arch Mouldings • SF6

(dealer-installed)
Winter Grille Cover • BHP
Lpo, Gmc Multipro Tailgate Step Lights • 63G

(dealer-installed)
Lamps, Smoked Amber Roof Marker, (Led) • U01
Lpo, Black Gmc Emblems • SFZ

(dealer-installed)
Lpo, Black Sierra Nameplates • RIK

(dealer-installed)
License Plate Kit, Front, Incandescent Lighting • VK3

(will be shipped to orders with ship-to provinces that require front license plate)
3 Years Sirius Xm • R6P
Multicolour 15" Diagonal Head-Up Display • UV6
Window, Power, Rear Sliding With Rear Defogger • A48
Universal Home Remote • UG1
Rear Camera Mirror • DRZ

inside rearview auto-dimming with full camera display

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
Bed Liner
CornerStep, rear bumper
Cargo tie downs (12), fixed, rated at 500 lbs (226.8 kg) per corner
Grille (Gloss Black header and grille insert bars with Black Chrome accents.)
Daytime Running Lights
Automatic Highbeams
Fog 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
Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
Heated Mirrors
Integrated Turn Signal Mirrors
Power Folding Mirrors
Power Mirror(s)
Privacy Glass
Intermittent Wipers
Rain Sensing Wipers
Variable Speed Intermittent Wipers
Door handles, body-colour
Integrated Tailgate Step
Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
Tailgate and bed rail protection caps, top

Interior

Bucket Seats
Leather Seats
Pass-Through Rear Seat
Rear Bench Seat
Driver Adjustable Lumbar
Power Driver Seat
Passenger Adjustable Lumbar
Power Passenger 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
Steering wheel, wrapped
Heated Steering Wheel
Steering Wheel Audio Controls
Adjustable Steering Wheel
Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
Rear Seat Reminder
GMC Premium information Display- 13.4" diagonal Multicolour touch screen
Exterior Temperature Display, located in radio display
Compass, located in instrument cluster
Power Windows
Power Door Locks
Keyless Entry
Keyless Start
Remote Engine Start
Adaptive Cruise Control
Cruise Control
Wireless Charging
Security System
Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
Auxiliary Audio Input
MP3 Player
Air vents, rear
A/C
Climate Control
Multi-Zone A/C
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, 10,850 lbs. (4921 kg) (Included and only available with TK20743 model and (L8T) 6.6L V8 gas engine with 18", 20" or 22" wheels.)
Keyless Start
Hill Descent Control
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
Air filter, heavy-duty
Air filtration monitoring
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
In-Vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module (Includes trailer tire pressure monitoring alert when (PTT) trailer tire pressure monitor sensors are installed.)
Tow Hooks
Skid Plates protect the oil pan, front axle and transfer case
Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
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

X31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocks
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

Safety

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
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
Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
Lane Departure Warning
Cross-Traffic Alert
Blind Spot Monitor
Seat Belt Adjustable Guide Loops, front row only
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.)
Safety Alert Seat
Driver Restriction Features
Tire Pressure Monitor
Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering

No matches were found.

Summary

Vehicle Name

GMC Sierra 2500HD
Body Style

Crew Cab Pickup
Body Code

E63

Transmission

Drivetrain

Four Wheel Drive
Trans Order Code

MGM
Trans Type

10
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
Clutch Size (in)

N/A

Interior dimensions

Passenger Capacity

5
Front Head Room (in)

43.03
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

Curb Weight - Front (lbs)

4023
Curb Weight - Rear (lbs)

2822
Gross Vehicle Weight Rating Cap (lbs)

11350
Gross Combined Wt Rating (lbs)

27500

Trailering

Dead Weight Hitch - Max Trailer Wt. (lbs)

5000
Dead Weight Hitch - Max Tongue Wt. (lbs)

500
Wt Distributing Hitch - Max Trailer Wt. (lbs)

18500
Wt Distributing Hitch - Max Tongue Wt. (lbs)

1850
Fifth Wheel Hitch - Max Trailer Wt. (lbs)

17300
Fifth Wheel Hitch - Max Tongue Wt. (lbs)

4325
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

Electrical

Cold Cranking Amps @ 0° F (Primary)

720
Maximum Alternator Capacity (amps)

220
Maximum Alternator Watts

N/A

Suspension

Suspension Type - Front

Short/Long Arm
Suspension Type - Rear

Multi-Leaf Springs
Axle Ratio (:1) - Front

3.42
Axle Ratio (:1) - Rear

3.42
Shock Absorber Diameter - Front (mm)

2.01
Shock Absorber Diameter - Rear (mm)

2.01
Stabilizer Bar Diameter - Front (in)

1.38

Tires

Front Tire Order Code

QF9
Rear Tire Order Code

QF9
Spare Tire Order Code

ZYG
Front Tire Size

LT275/65R20
Rear Tire Size

LT275/65R20
Spare Tire Size

LT275/70R18
Revolutions/Mile @ 45 mph - Front (Rev/Mile)

N/A
Revolutions/Mile @ 45 mph - Rear (Rev/Mile)

N/A
Revolutions/Mile @ 45 mph - Spare (Rev/Mile)

N/A

Wheels

Front Wheel Size (in)

20
Rear Wheel Size (in)

20
Front Wheel Material

Aluminum
Rear Wheel Material

Aluminum
Spare Wheel Material

Steel

Steering

Steering Type

Pwr Recirculating Ball
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)

159
Length, Overall (in)

250.75
Width, Max w/o mirrors (in)

81.85
Height, Overall (in)

79.82
Cab to Axle (in)

42.17
Ground Clearance, Front (in)

10.12
Ground Clearance, Rear (in)

10.12

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.

New 2026 GMC Sierra 2500HD AT4

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New 2026 GMC Sierra 2500HD AT4

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2026 GMC Sierra 2500HD AT4 $118,859

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