GMC Sierra 3500HD Denali Dually Price: MSRP, Trims & Real-World Cost

The Sierra 3500HD Denali is GMC's luxury heavy duty pickup, and the dual rear wheel version (often called a dually) is the one buyers choose for towing very heavy trailers such as large fifth wheel campers or equipment haulers. The extra wheels add stability and capacity, and they also add cost. This page explains what the Denali and Denali Ultimate trims list for, where the dually fits, and what a final price looks like once the extras are counted.

A note on sourcing before the numbers. The trim prices below come from a single published guide, Automotive Addicts, rather than from GMC's own configurator, so treat them as a reference and confirm with a GMC dealer. That guide does not make clear whether every figure is before or after destination, and it does not break out dually and single rear wheel pricing for every trim.

The Denali lists at $78,695, and the Denali Ultimate at $99,795. The guide describes the range topping Denali Ultimate Crew Cab Long Bed with dual rear wheels and four wheel drive as starting at $103,895. Lower trims for comparison are the SLT at $68,495 and the AT4 at $75,395.

One entry in the table is context rather than a Denali price. GMC lists the Sierra HD family as starting at $47,300, per GMC. That is the entry price for the heavy duty line, not what a Denali dually costs, and it should not be read as a starting point for this truck.

A dually carries four rear tires on a wider axle. Buyers pay for it to get higher towing and payload capability and a steadier feel with a heavy trailer behind the truck. The guide identifies the Denali Ultimate Crew Cab Long Bed DRW 4WD as the top trim in the lineup, so the dually version of the most luxurious trim sits at the top of the price range. Check the exact capacity ratings for the configuration you want on GMC's website, since towing figures change with engine, axle, and cab.

GMC adds a destination charge of $2,795 for the 2026 Sierra 3500HD. Whether the trim prices above already include it depends on how the source states each figure, so ask the dealer to list MSRP and destination on separate lines. Then expect:

• Dealer documentation and preparation fees
• Sales tax, title, and registration
• Options and accessories such as bed equipment, hitches, and towing technology
• Any dealer markup or discount

Heavy duty truck prices vary with cab and bed length, engine choice, drive configuration, and packages. Engine choice can change the price, and a long bed crew cab dually costs more than a shorter configuration. Published guides may quote a base figure for the trim while the truck on the lot carries added equipment. Discounts and incentives change over time and by region, and so do dealer markups on in demand trucks. We give no figures for those because they are not predictable.

• Compare the Denali with the SLT or AT4 if the luxury features are not essential.
• Ask whether the dually is necessary for your trailer weight. A single rear wheel truck may handle lighter loads.
• Get quotes from more than one dealer, and ask for an out the door price.
• Check for manufacturer incentives and financing offers, and read the terms.

A heavy duty diesel truck is expensive to keep. Fuel, insurance, tires for six wheels, and maintenance all run higher than for a half ton pickup. Commercial use may bring tax and registration differences, so talk to an accountant if you plan to use the truck for business. Resale value varies with mileage, condition, and equipment.