New 2026 GMC Sierra 3500HD SLT

Name: 2026 GMC Sierra 3500HD 4WD Crew Cab Standard Box SLT
Brand: GMC
SKU: 303563
Price: 101489 CAD
Availability: InStock

6.85ft Box Length

Sold

Davis Price

$101,489

+ GST

2026 GMC Sierra 3500HD 4WD Crew Cab Standard Box SLT in Black for sale at Davis GMC Buick Lethbridge in Lethbridge, AB

Vehicle Details

Body Style

Truck

Engine

6.6L 8Cyl

Exterior Colour

Black

Interior Colour

Black

Transmission

Automatic

Drivetrain

4×4

VIN

1GT4UUEY4TF235059

Stock

303563

Fuel Type

Diesel

Trim Details

4WD Crew Cab Standard Box SLT

Description

The 2026 GMC Sierra 3500HD SLT combines heavy-duty diesel capability, refined comfort, and professional-grade technology into one commanding pickup. Built to handle demanding workloads while surrounding passengers with premium features, this Crew Cab delivers confident towing strength, advanced connectivity, and unmistakable GMC styling; perfect for drivers who need serious performance without sacrificing everyday comfort.

Performance & Capability

Engine: Duramax® 6.6L V8 Turbo-Diesel delivering exceptional torque, towing confidence, and long-haul durability

Transmission: Allison® 10-speed automatic transmission engineered for smooth power delivery and heavy-duty performance

Drivetrain: Autotrac® 4-Wheel Drive (4WD) for dependable traction in changing road and weather conditions

Suspension: Heavy-duty suspension package tuned for stability, payload capability, and confident handling

Axle Ratio: 3.42 rear axle ratio optimized for towing strength and highway efficiency

Trailering Equipment: Integrated trailer brake controller, Hitch View, and in-vehicle trailering app for enhanced towing control

Gooseneck/5th Wheel Prep Package for added heavy-duty trailering versatility

Automatic Locking Rear Differential for improved traction on rough or slippery surfaces

Engine Exhaust Brake and Heavy-Duty Cooling Systems for greater downhill control and towing confidence

High Idle Switch and Engine Block Heater for dependable cold-weather operation and commercial readiness

Winter & Weather Comfort

Heated Front Seats and Heated Steering Wheel for added cold-weather comfort

Remote Vehicle Start System to warm up or cool down the cabin before you enter

Dual-Zone Automatic Climate Control for personalized comfort settings

Rain-Sensing Windshield Wipers for added convenience in changing weather

Deep-Tinted Glass and Rear Window Defogger for improved visibility and cabin comfort

Winter Grille Cover and Heavy-Duty Heating System for enhanced winter driving capability

Interior Comfort & Convenience

Spacious Crew Cab interior with premium seating and versatile rear seat storage package

Power Driver and Front Passenger Seats with driver memory settings for personalized comfort

Front 40/20/40 Split Bench Seat offering flexibility for passengers and cargo

Keyless Open & Push-Button Start for effortless access and ignition

Power Windows, Power Door Locks, and Tilt/Telescopic Steering Column for everyday convenience

Wireless Apple CarPlay® & Android Auto™ compatibility for seamless smartphone integration

13.4" GMC Premium Infotainment Touchscreen with Google Built-In compatibility and navigation capability

12" Digital Driver Information Centre with customizable vehicle information displays

Multiple USB Ports and 120V Power Outlets in both the cabin and truck bed for added functionality

Rear Seat Reminder and Rear Seat Storage Package for practical daily usability

Safety & Driver Assistance

GMC Pro Safety suite designed to provide enhanced confidence on every drive

Forward Collision Alert with Automatic Emergency Braking

Lane Departure Warning for added highway awareness

Front Pedestrian Braking for improved urban safety

HD Rear Vision Camera and Hitch Guidance for easier parking and trailer alignment

Following Distance Indicator to assist with safer spacing in traffic

Teen Driver Mode and Buckle-to-Drive technology for added peace of mind

Tire Pressure Monitoring System and Trailer Tire Monitoring capability for improved towing awareness

Exterior Styling & Utility

Exterior Colour: Onyx Black — bold, sophisticated, and unmistakably GMC

18" Machined Aluminum Wheels with Dark Grey Metallic Accents paired with aggressive all-terrain tires

Chrome Front and Rear Bumpers, Chrome Door Handles, and Chrome Mirror Caps for upscale styling

LED Headlamps, LED Fog Lamps, Cargo Bed Lighting, and IntelliBeam® automatic high beams for enhanced visibility

Spray-On Bedliner and Standard Bed configuration built for hard-working durability

EZ Lift Power Lock & Release Tailgate for easier cargo access

Heated Power-Adjustable Trailering Mirrors with integrated task lighting for improved visibility while towing

Black Front Recovery Hooks and Rear CornerSteps for added utility and rugged appeal

Gooseneck/5th Wheel Prep capability for serious towing performance

Whether you’re hauling equipment to the jobsite, towing a large trailer across the country, or tackling harsh Canadian winters, the 2026 GMC Sierra 3500HD SLT delivers exceptional diesel power, advanced technology, and premium comfort. It’s a heavy-duty truck engineered to work hard while keeping every drive refined, capable, and confident.

Packages & Options

Standard Equipment

Technical Specifications

Installed Packages

Slt Preferred Equipment Group • 4SA

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, 12,100 Lbs. (5488 Kg) With Single Rear Wheels • G4Y
Rear Axle, 3.42 Ratio • GU6
Wheels, 18" (45.7 Cm) Machined Aluminum Wheel • PXD

with Dark Grey metallic accents
Tires, Lt275/70R18E All-Terrain, Blackwall • QF6
Onyx Black • GBA
Seats, Front 40/20/40 Split-Bench • AZ3

with covered armrest storage and under-seat storage (lockable)
Jet Black, Perforated Leather-Appointed Front Seat Trim • H1Y
Audio System, 13.4" Diagonal Premium Gmc Infotainment System • IOK

with Google built in apps such as navigation and voice assistance, 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.
Engine Block Heater • K05
High Idle Switch • UF3
Alternator, 220 Amps • KW5
Exhaust Brake • K40
Bedliner, Spray-On • CGN

Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel)
Winter Grille Cover • BHP

No matches were found.

Options

Air Conditioning
Alloy Wheels
Backup Camera
Bluetooth Connection
Cruise Control
Heated Seats
Keyless Entry
Lane Assist
Leather Seats
Navigation System
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
Audio system feature, 6-speaker 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 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

Interior

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

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
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
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
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.

Summary

Vehicle Name

GMC Sierra 3500HD
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

Interior dimensions

Passenger Capacity

6
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
Curb Weight - Front (lbs)

4032
Curb Weight - Rear (lbs)

2928
Gross Vehicle Weight Rating Cap (lbs)

12100
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)

21600
Fifth Wheel Hitch - Max Tongue Wt. (lbs)

5400
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)

220

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

3.42
Axle Ratio (:1) - Rear

3.42
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)

80.87
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.

* 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.

/ /

Customize your payment

Cash

MSRP Price $106,489

Non-Stackable Cash Delivery Allowance (NSCDA) - CBG ^{Required packages: 4SA}

-$5,000

Valid from 2026/05/01 - 2026/06/30

Get in touch

^*Required fields

First Name

Last Name

Phone Number

Subject

Message

Send me exclusive offers and promotions. View disclaimer.

Hours of Operation

New 2026 GMC Sierra 3500HD SLT

Appraise My Trade

Vehicle Information

Book a Test Drive

Confirm Availability

Appraise My Trade

Vehicle Information

Book a Test Drive

Confirm Availability

Get in touch

Hours of Operation