Experience commanding power and advanced safety in the 2026 GMC Sierra 3500HD AT4 Crew Cab 4WD, finished in striking Coastal Dune with premium off-road capability.

This heavy-duty truck is equipped with a robust Duramax 6.6L Turbo-Diesel V8 engine delivering an impressive 470 horsepower and 975 lb-ft of torque, perfect for demanding towing and hauling tasks. The 10-speed automatic transmission and four-wheel drive drivetrain, combined with a locking limited-slip differential, ensure confident handling in all conditions. The Sierra 3500HD AT4 features aluminum wheels, 4-wheel disc brakes with ABS, and a tow hitch ready for serious work.

Inside, enjoy heated and cooled leather bucket seats with power adjustments and memory settings for both driver and passenger, plus adjustable lumbar support for added comfort on long drives. Rear heated seats and a pass-through rear bench seat provide versatility for passengers and cargo. Convenience is enhanced with keyless entry, remote engine start, and an aerial view display system for precise manoeuvring.

Safety is paramount with automatic high beams, blind spot monitoring, cross-traffic alert, front collision mitigation, lane departure warning, and multiple airbags. Exterior features include LED headlights, fog lamps, heated and power-folding mirrors with integrated turn signals, running boards, a bed liner, and an integrated tailgate step for easy access. The Sierra 3500HD AT4 is built to handle tough jobs with confidence and comfort.