2026 GMC Sierra 3500 HD for Sale in Conway, AR

What's New for 2026?

The new GMC Sierra 3500 HD for sale in Conway leads GMC’s heavy-duty lineup, built for drivers who demand maximum strength and capability. After major upgrades over the past few years, the 2026 model adds a few smart updates. These include new Glacier White Tricoat and Coastal Dune colors, expanded Super Cruise hands-free trailering, and an upgraded camera system that makes hitching and reversing even easier.

Compared to the Sierra 2500 HD, the 3500 HD adds dual rear-wheel capability, higher payload ratings, and greater tow stability. These features make it the right choice for contractors, ranchers, and long-haul drivers who need maximum strength.

Under the hood, two proven powertrains deliver professional-grade performance:

-6.6-liter V8 gas engine (401 hp / 464 lb-ft torque)

-6.6-liter Duramax Turbo-Diesel V8 (470 hp / 975 lb-ft torque)

Both powertrains pair with a 10-speed Allison automatic transmission that delivers smooth, confident shifts under load. When properly equipped with dual rear wheels, the Sierra 3500 HD can tow up to 36,000 pounds using a gooseneck hitch. This is a setup where the trailer connects in the truck bed for greater stability and weight control. It can also haul up to 7,400 pounds of payload, giving it the highest capability rating in GMC’s lineup.

Key Features of the 2026 GMC Sierra 3500 HD

-Maximum towing capacity up to 36,000 lb (gooseneck configuration)
-Payload rating up to 7,400 lb
-Dual rear wheels available for added stability and strength
-6.6L gas or Duramax diesel with Allison 10-speed automatic
-Trailer-aware Super Cruise hands-free driving (3500 HD exclusive)
-14 camera views with hitch zoom and transparent trailer view
-CarbonPro composite bed resists dents and corrosion
-MultiPro Tailgate with six functional positions
-Advanced trailering app with visual tire-pressure monitoring
-Available 13.4-inch touchscreen and 12.3-inch digital driver display
-Denali Ultimate trim with full-grain leather and Paldao wood

For Central Arkansas contractors and farmers who depend on durability, capability, and comfort, the Sierra 3500 HD delivers it all.

Next-Gen Safety

Safety isn’t optional when you’re towing 36,000 pounds. The 2026 Sierra 3500 HD pairs its raw strength with cutting-edge driver-assist systems.

Standard safety features include:
-Front Automatic Emergency Braking
-Lane Departure Warning
-Automatic High-Beam Headlights
-Trailer Brake Controller
-Cruise Control

Available or standard on upper trims:
-Blind-Spot Monitoring with Trailer Coverage
-Rear Automatic Emergency Braking
-Adaptive Cruise Control with Trailering Assist
-Super Cruise with trailer functionality for true hands-free confidence

Advanced Technology

Inside the Sierra 3500 HD, technology and towing intelligence work together.
-13.4-inch infotainment touchscreen with Google Built-In
-12.3-inch digital driver display and available 15-inch Head-Up Display
-Wireless Apple CarPlay and Android Auto
-Bose Premium Audio (up to 12 speakers)
-360-degree HD Surround Vision and hitch zoom
-In-Vehicle Trailering App with load monitoring and tire-pressure readouts

The trailer-aware Super Cruise system—exclusive to the 3500 HD—adapts to tr

Spacious & Comfortable

Heavy-duty on the outside, luxurious on the inside. The Sierra 3500 HD is built for all-day comfort. Crew Cab models offer ample rear legroom, while premium materials and quiet cabin design create a refined environment for work or weekend travel.

Denali and Denali Ultimate trims add first-class features such as full-grain leather, open-pore wood, massaging front seats, and heated rear seats. Even Pro and SLE trims provide durable upholstery and smart storage solutions like under-seat bins and oversized center consoles.

Trim Highlights & Available Options

Pro
-6.6L gas V8 with 10-speed automatic
-LED headlights and taillights
-Trailering Package with integrated Trailer Brake Controller
-Best-in-class HD bed volume
-Optional Duramax Diesel

SLE
-13.4-inch touchscreen and 12.3-inch driver display
-Keyless entry with push-button start
-Rubber floormats and animated LED lighting
-Available MultiPro Tailgate and X31 Off-Road Package

SLT
-Leather seating and heated steering wheel
-ProGrade Trailering System with In-Vehicle App
-Optional ventilated front seats and Bose audio

AT4
-Off-Road Suspension with Rancho shocks and skid plates
-Hill Descent Control and all-terrain tires
-20-inch alloy wheels and Jet Black/Kalahari interior

Denali
-Authentic wood and leather interior
-Surround-view camera and Head-Up Display
-20-inch Ultra-Bright machined wheels
-Available power sunroof and Duramax diesel

Denali Ultimate
-Standard Duramax Diesel with 10-speed Allison automatic
-Vader Chrome grille and 20-inch gloss-black wheels
-Alpine Umber interior with full-grain leather and Paldao wood
-Massaging front seats and panoramic sunroof
-12-speaker Bose audio and illuminated assist steps
-Dual-rear-wheel setup for maximum tow rating
-Super Cruise with trailer awareness

Warranty Coverage
Every 2026 Sierra 3500 HD is backed by GMC’s comprehensive warranty:
-Limited Warranty: 3 years/36,000 miles
-Powertrain Warranty: 5 years/60,000 miles
-Complimentary Maintenance: First scheduled visit included

That’s peace of mind for hard-working drivers in Conway, Little Rock, and surrounding areas.

Financing Options
At Crain Buick GMC in Conway, our finance team helps Central Arkansas drivers find competitive loan and lease options. We partner with local banks and credit unions to deliver strong rates and fast approvals. Heavy-duty trucks are investments—our team makes financing as strong as your truck.

Learn more about our finance department and get pre-approved today!

Crain Buys Cars
Crain Buick GMC makes upgrading simple—sell your current vehicle to us, even if you don’t buy another. Get a fast, fair offer and apply it toward your next Sierra HD. Start now at Crain Buys Cars.

Shop the 2026 GMC Sierra 3500 HD in Conway, AR
From its dual rear wheels and Super Cruise technology to its luxurious Denali Ultimate interior, the 2026 GMC Sierra 3500 HD defines power and prestige for those who demand more from a truck.

Visit Crain Buick GMC in Conway and see why Central Arkansas drivers trust the Sierra 3500 HD for serious work and weekend comfort. Explore our inventory today, serving Little Rock, North Little Rock, Benton, and Bryant.