Add Heavy-Duty Power

The Rocky Mountain region is a rugged landscape with vertical climbs and ferocious weather. The 2021 GMC Sierra 2500 HD is perfectly suited for this environment with its mighty engine choices, powerful hauling and towing capabilities, and innovative truck bed. On the job site or towing a trailer for a weekend adventure, the 2021 GMC Sierra 2500 HD for sale can conquer challenges from weather, elevation, and cargo with its all-around abilities. There are five unique trim levels to pick from, starting with the base 2021 GMC Sierra 2500 HD, the 2021 GMC Sierra 2500 HD SLE, and the 2021 GMC Sierra 2500 HD SLT. The 2021 GMC Sierra 2500 HD AT4 is engineered for off-road performance along with a distinctively bold exterior. The top-of-the-line 2021 GMC Sierra 2500 HD Denali is outfitted with a purpose-built exterior and exclusive premium interior. Find the best 2021 GMC Sierra 2500 HD for sale for you by visiting Markley Buick GMC.

Incredible Versatility

This mammoth GMC truck model is equipped with two engine options and the first heavy-duty truck in its class with the available AllisonĀ® 10-speed automatic transmission. The gas-powered 6.6L V8 motor churns out 401 horsepower and 464 lb.-ft. of torque, with a maximum payload capacity of 3,862 lbs. and a conventional towing capacity of up to 14,500. The 2021 GMC Sierra 2500 HD diesel for sale comes with the potent 6.6L V8 Turbo Diesel engine that unleashes 445 horsepower and 910 lb.-ft. of torque. The 2021 GMC Sierra 2500 HD towing capacity achieves its peak rating with the diesel motor, reaching a maximum towing capacity of 18,500 lbs. The world's first six-function GMC MultiPro Tailgate is equipped with the 2021 GMC Sierra 2500 HD for sale, and it enhances loading with a sturdy step among the configurations. This GMC truck model also features trailering mirrors for superb side vision, Side Bed Steps, 12 cargo tie-downs, and a best-in-class 83.5 cu.ft. of cargo box volume. Discover these characteristics and more for the 2021 GMC Sierra 2500 HD for sale when you stop by Markley Buick GMC.

Class-Leading Comfort

The 2021 GMC Sierra 2500 HD Crew Cab delivers best-in-class front head and legroom. You also can choose the Regular Cab or the Double Cab configuration. This GMC truck model is outfitted with the class-exclusive available Head-Up Display with Rear Camera mirror, along with the industry-first available Transparent Trailer View and an up to an available best-in-class 15 camera views. Give the 2021 GMC Sierra 2500 HD for sale a try by going for a test drive at Markley Buick GMC.

Contact Markley Buick GMC



Directions FORT COLLINS, CO 80525

  • Contact: 970-223-1234


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