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

in St. Albert 

The 2026 GMC Sierra 3500HD AT4 is purpose-built for drivers who need uncompromising heavy-duty capability with premium comfort and rugged off-road confidence. Combining bold styling, advanced technology, and serious towing capability, this truck is ready to handle the toughest jobs while delivering the refinement expected from GMC's premium lineup.

Powered by the legendary 6.6-litre Duramax Turbo-Diesel V8 engine paired with the renowned Allison® 10-speed automatic transmission, it delivers exceptional torque, outstanding towing capability, and effortless performance under heavy loads. With its heavy-duty four-wheel drive system, off-road-tuned suspension, and limited-slip differential, it's built to perform wherever the road-or trail-takes you.

FEATURES OF THE GMC Sierra 3500HD
»» AT4 off-road package with bold styling
»» Power sunroof for an open-air driving experience
»» Premium leather-appointed interior
»» Heated steering wheel and heated front seats

ADVANCED SAFETY FEATURES
»» Adaptive Cruise Control enhances long-distance driving
»» Lane Departure Warning helps keep you on course
»» Blind Spot Monitor adds confidence during lane changes
»» Rear Cross Traffic Alert and backup camera improve visibility

PERFORMANCE AND EFFICIENCY
»» 6.6-litre Duramax Turbo-Diesel V8 engine
»» Allison® 10-speed automatic transmission
»» Limited-slip differential enhances traction
»» Heavy-duty four-wheel drive built for work and adventure

COMFORT AND CONVENIENCE
»» Leather-appointed seating with memory driver's settings
»» Heated front seats provide year-round comfort
»» Engine block heater for dependable cold-weather starts
»» Rain-sensing windshield wipers and remote engine start

TECHNOLOGY AND CONNECTIVITY
»» Bluetooth connectivity for hands-free communication
»» Smart device integration supports compatible smartphones
»» Wi-Fi hotspot capability keeps you connected on the go
»» Steering wheel-mounted audio controls and satellite radio

CARGO SPACE
»» Heavy-duty cargo box built for demanding workloads
»» Excellent payload capacity for tools and equipment
»» Spacious crew cab offers generous passenger and storage space
»» Ready for towing trailers, fifth wheels, and recreational gear

WHAT OTHER OWNERS LIKE
»» Incredible diesel towing and hauling capability
»» Rugged AT4 styling with off-road confidence
»» Premium interior with advanced technology
»» Smooth Allison® transmission and refined highway ride

The 2026 GMC Sierra 3500HD is engineered to perform when the job gets tough while providing a level of refinement that's rarely found in heavy-duty trucks. Its legendary Duramax diesel engine delivers massive torque for towing and hauling, while the Allison® transmission ensures smooth, confident performance whether you're pulling a trailer or cruising down the highway.

Inside, it surrounds you with premium materials and thoughtful features designed to make every drive comfortable. Leather seating, heated front seats, a heated steering wheel, memory settings, a power sunroof, and advanced driver-assistance technologies create a cabin that's as capable as it is luxurious.

If you're looking for a heavy-duty truck that combines exceptional capability, premium comfort, and rugged AT4 styling, this is an outstanding choice. Built to conquer demanding jobs and weekend adventures alike, it's ready to exceed expectations every time you get behind the wheel.