Used 2025 GMC Sierra 3500HD AT4

Power through any job or adventure with the 2025 GMC Sierra 3500HD AT4 Crew Cab 4WD, designed for uncompromising strength, advanced technology, and rugged capability.

Built for those who demand serious performance, this Sierra 3500HD features the mighty Duramax 6.6L Turbo-Diesel V8 engine delivering an impressive 470 horsepower and a staggering 975 lb-ft of torque. Whether towing heavy trailers or hauling substantial payloads, the 10-speed automatic transmission and locking limited-slip differential provide smooth, confident control on every terrain. The 4x4 drivetrain, combined with integrated tow hooks and a durable bed liner, ensures readiness for the toughest Canadian conditions.

Inside, the cabin blends comfort with utility, boasting heated and cooled leather bucket seats with adjustable lumbar support and memory settings for both driver and passenger. The advanced Aerial View Display System and rear parking aid enhance visibility, while adaptive cruise control and lane departure warning keep safety front and centre. Keyless start, remote engine start, and power-folding heated mirrors add convenience to your daily routine.

Finished in Summit White with aluminium wheels and rugged running boards, this Sierra 3500HD AT4 stands out as a reliable partner for work or weekend pursuits, combining power, technology, and comfort in one commanding package.