2021 GMC Sierra 3500HD AT4

This Carbonized Grey 2021 GMC Sierra 3500HD has arrived at our dealership, offering the professional-grade power and advanced towing technology needed for the most demanding tasks. This heavy-duty truck is a standout choice for those who require maximum capability paired with modern refinement.

Our service department has ensured this truck is fully road-ready through a comprehensive inspection and reconditioning process:

• Completed a full AMVIC mechanical fitness assessment and multi-point safety inspection.

• Verified all primary systems, including the powertrain, braking system, and suspension, are in compliant working order.

• Performed a fresh service including topping up the power steering fluid.

• Replaced the cabin air filter to ensure a fresh interior environment.

• Swapped tires to ensure the truck is equipped for the road ahead.

• Conducted a thorough battery and charging system test.

• Completed a professional clean interior and exterior detail.

This vehicle features a history rooted in Western Canada, having been previously registered in British Columbia before coming to Alberta. It has been professionally maintained, with its most recent comprehensive service and safety inspection completed right here in Okotoks in April 2026. The odometer was recorded at 110,572 km at the time of its mechanical assessment, showing that this truck is ready to continue its life as a reliable workhorse.

The Sierra 3500HD is built to handle heavy payloads and large trailers with ease:

• 6.6L Duramax Turbo-Diesel V8 Engine: Provides the massive torque and horsepower required for confident heavy-duty towing.

• All-Wheel Drive / 4WD: Offers essential traction for worksites and unpredictable road conditions across the province.

• Heavy-Duty Suspension: Engineered to maintain stability and control, even when fully loaded or towing at maximum capacity.

• Modern Connectivity: Features an intuitive infotainment system to keep you connected and productive while on the job.

• Safety & Security: Includes a comprehensive suite of safety features and warning systems to help keep you and your cargo protected.

• Advanced Braking: Equipped with a robust disc braking system and integrated parking brake designed for heavy-duty applications.

Text or Call us today at Okotoks Ford Lincoln for a personalized video walk-around or to book your test drive of this heavy-duty truck.

This Carbonized Grey 2021 GMC Sierra 3500HD has arrived at our dealership, offering the professional-grade power and advanced towing technology needed for the most demanding tasks. This heavy-duty truck is a standout choice for those who require maximum capability paired