2026 GMC Sierra 3500 HD 4WD Crew Cab Standard Box AT4 6.6L Diesel 

in Leduc 

This brand new 2026 GMC Sierra 3500 HD 4WD Crew Cab Standard Box AT4 6.6L Diesel is built for hard work and serious confidence. Now available at Schwab Chevrolet Buick GMC in Leduc, this heavy-duty truck pairs a White exterior with a Black interior and delivers the strength, comfort, and smart features drivers want every day.

Designed for drivers who need real capability, the 2026 GMC Sierra 3500 HD 4WD Crew Cab Standard Box AT4 6.6L Diesel brings diesel power, four-wheel drive, and a refined crew cab layout together in one bold package. Its automatic transmission helps make towing, hauling, and highway travel feel smooth and controlled in changing Alberta conditions.

FEATURES OF THE Sierra 3500 HD 4WD Crew Cab Standard Box AT4 6.6L Diesel

»» AT4 trim adds off-road focused attitude
»» Crew Cab offers roomy passenger space
»» Standard Box balances cargo and manoeuvrability
»» Diesel power supports demanding heavy-duty tasks

TRUCK FEATURES

»» Towing capacity reaches 9,070 kg confidently
»» Four-wheel drive supports traction on rough roads
»» Rear tow hook adds useful recovery help
»» Limited slip differential aids grip off-road

ADVANCED SAFETY FEATURES

»» Backup camera helps with reversing visibility
»» Blind spot monitor supports safer lane changes
»» Anti-lock braking system helps maintain control
»» Side and head airbags add protection

PERFORMANCE AND EFFICIENCY

»» 6.6 L diesel engine delivers strong torque
»» Automatic transmission supports smooth power delivery
»» Four-wheel drive adds all-surface confidence
»» Stability control helps manage slippery conditions

COMFORT AND CONVENIENCE

»» Heated front and rear seats add comfort
»» Dual-zone climate control helps cabin comfort
»» Memory seats simplify shared driver settings
»» Power windows and mirrors add ease

TECHNOLOGY AND CONNECTIVITY

»» Navigation system helps guide every trip
»» Bluetooth integration supports hands-free communication
»» Wi-Fi hotspot keeps devices connected
»» Steering wheel audio controls improve convenience

CARGO SPACE

»» Standard Box supports tools and gear
»» Four doors improve cabin loading access
»» Rear trunk access aids cargo retrieval
»» Steps help easier entry and exit

The 2026 GMC Sierra 3500 HD 4WD Crew Cab Standard Box AT4 6.6L Diesel also adds practical touches that make daily use easier. Heated mirrors, retractable mirrors, turn signal mirrors, tinted windows, fog lights, LED headlamps, and a rear window defroster all help this truck stay ready for early mornings, poor weather, and long days on the job.

Inside, the 2026 GMC Sierra 3500 HD 4WD Crew Cab Standard Box AT4 6.6L Diesel offers a well-equipped cabin with features that support both work and comfort. Push button start, front air conditioning, automatic climate control, driver's seat lumbar support, passenger lumbar support, power driver seat, power passenger seat, satellite radio, HD Radio, and an auto-dimming rearview mirror all add daily value.

WHAT OTHER OWNERS LIKE

»» Strong diesel pulling power for towing
»» Comfortable cabin for long highway trips
»» Useful technology for work and travel
»» Confident four-wheel drive in poor weather

This 2026 GMC Sierra 3500 HD 4WD Crew Cab Standard Box AT4 6.6L Diesel's VIN is: 1GT4UVEY3TF147822.