New GMC Sierra 2500 & 3500 HD Engine Specifications at Gardner Chevrolet Buick GMC

The 2026 GMC Sierra 2500 & 3500 HD pack seemingly limitless capability with towing power up to 36,000 lbs and a maximum payload rating of 3,979. Powertrains include the 6.6 L gas V8 and the 6.6 L Duramax Turbo-Diesel V8, promising towing ability equal to heavy-duty hauls like boats, horse boxes, other vehicles, and commercial trailers. Whatever your vocation, the 2026 GMC Sierra HD works smart and hard with access to top-of-the-line ProGrade towing technology and up to 14 camera views for safer maneuvers and lane switching, as well as the ability to see through your trailer to the road behind your haul. Keep reading as our experts at Gardner Chevrolet Buick GMC show off the 2026 GMC Sierra HD’s specs, then book your test drive to take it for a spin in Hope, BC!

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What is the Towing Capacity of the 2026 GMC Sierra HD?

The 2026 GMC Sierra 2500 & 3500 HD boast rugged hauling muscle up to 19,090 lbs on the 6.6 L gas V8 engine and 36,000 lbs on the 6.6 L Duramax Turbo-Diesel V8, supported by payload ratings of 3,879 lbs and 3,428 lbs respectively. With this kind of raw power under its hood, the 2026 GMC Sierra HD proves itself equal to heavy-duty hauling jobs like boats, horse boxes, other vehicles like tractors for farm work, and full-size, utility, or commercial trailers. As well, 10-speed automatic transmission ensures gear shifting feels seamlessly easy, and Adaptive Cruise Control can be adjusted to account for your trailer’s weight and stopping distance, so your drive will sail as smoothly as possible even while performing tricky fifth-wheel or gooseneck towing jobs.

ProGrade Trailering Technology & Up to 14 Camera Views

The 2026 GMC Sierra HD’s raw towing potential is elevated by available ProGrade trailering technology, which streamlines your towing jobs from hitch to drop-off with its selection of essential tools like pre-departure checklists and trailer health checks. Additionally, up to 14 available camera views across the 2026 GMC Sierra HD take the guesswork out of your hauling jobs, providing helpful angles like transparent trailer views and hitch close-ups for improved trailer hookups and lane switching.

Shop the 2026 GMC Sierra 2500 & 3500 HD at Gardner Chevrolet Buick GMC

For heavy-duty hauling jobs, look no further than the 2026 GMC Sierra 2500 & 3500 HD and their available accessories. Our expert team at the Gardner Chevrolet Buick GMC showroom is on-hand to help you pick out the right trim and secure financing that works for your budget, so why not book a test drive in Hope, BC for some time behind the wheel of the 2026 GMC Sierra HD? Don’t forget to ask us for a free trade valuation if you’re trading up!