Guide
2026 GMC Sierra 3500HD Research Hub Hot Springs AR
Everything on the 2026 Sierra 3500HD: trims, specs, towing, service and FAQs.
Your Complete Guide to the 2026 GMC Sierra 3500HD
Quick Answer
- Starting price: $47,900 (Pro) to $97,200 (Denali Ultimate), six trims.
- Max towing: up to 36,000 lbs on a gooseneck hitch, properly equipped.
- Engines: 401-hp gas V8 standard; 470-hp Duramax Turbo-Diesel available.
About the 2026 GMC Sierra 3500HD
The 2026 GMC Sierra 3500HD is GMC's heavy-duty pickup, built for the highest towing and payload figures in the Sierra HD lineup. Six trims span $47,900 to $97,200, from the work-focused Pro to the Duramax-standard Denali Ultimate, with a standard 6.6L V8 and an available 6.6L Duramax Turbo-Diesel across the range. Properly equipped, it tows up to 36,000 lbs on a gooseneck hitch, and dual rear wheels are available on every trim except AT4, GMC's off-road-focused single-rear-wheel trim.
Unlike the Sierra 2500HD, the 3500HD does not offer the AT4X off-road trim, trading that halo for a higher GVWR ceiling and DRW availability across most of the lineup. For Hot Springs, Arkadelphia, Hope and Bryant shoppers cross-shopping the 3500HD against its 2500HD sibling, the DRW option and the 36,000-lb gooseneck maximum are the two facts that usually decide it.
Comparing the Sierra 3500HD to its Sierra 1500 and 2500HD siblings? See Comparing Sierra 1500, 2500, and 3500 DRW. Trying to decide between dual and single rear wheels? Read Dual Rear Wheels or Single: Which Sierra 3500HD Fits Your Towing. Allen Tillery also serves Sierra 3500HD shoppers from Texarkana and Benton, and near Hot Springs National Park and Highway 7. Ready to see pricing and trims, need exact dimensions, or want to know what it can tow? Every page below covers one piece of the truck in full.
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May not represent actual vehicle. (Options, colors, trim and body style may vary)
The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.