Buy a New 2026 GMC Sierra 3500 HD Online

GMC Sierra 3500

Explore the 2026 GMC Sierra 3500 HD at Vernon GMC

The 2026 GMC Sierra 3500 HD is built for demanding work and serious towing. It offers heavy-duty capability, a refined cabin, and modern technology. At Vernon Chevrolet, you can shop for a new Sierra 3500 online with our best-price-forward approach. There is no pricing negotiation required. We put our best price forward from the start.

The Sierra 3500 HD is a strong fit for drivers across West Texas, DFW, and OKC. It is also available to customers throughout Oklahoma, New Mexico, Arkansas, Louisiana, and nearly anywhere in the United States through our delivery options.

blank gif
Disclaimer: The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.

1Dealer Discount applied to everyone

Purchase a New GMC Sierra 3500 HD Online

GMC Sierra 3500 HD Truck

Vernon Chevrolet makes it easy to shop for a new GMC Sierra 3500 from home. Review inventory and work with our team online. Once your purchase is complete, we can arrange delivery to you. Our straightforward pricing means you do not have to negotiate for a better deal.

Whether you need a heavy-duty truck for work or a capable pickup for towing, the Sierra 3500 HD offers multiple configurations to consider. Cab choices include Regular Cab, Double Cab, and Crew Cab. Bed configurations also vary, allowing you to choose the setup that best fits your work or towing needs.

Explore the 2026 GMC Sierra 3500 HD Trim Levels

Sierra 3500 HD Pro

  • 6.6L V8 gas engine (401 horsepower / 464 lb-ft of torque) / 6.6L V8 Duramax turbo-diesel engine (470 horsepower / 975 lb-ft of torque)
  • 10-Speed automatic transmission
  • Standard rear-wheel drive / Available four-wheel drive (4WD)
  • 17-inch steel painted Silver wheels
  • Hitch guidance
  • Trailering Package
  • 7-inch GMC Infotainment System with color touchscreen
GMC Sierra 3500 HD Pro
  • 6.6L V8 gas engine (401 horsepower / 464 lb-ft of torque) / 6.6L V8 Duramax turbo-diesel engine (470 horsepower / 975 lb-ft of torque)
  • 10-Speed automatic transmission
  • Standard four-wheel drive (4WD)
  • 18-inch machined aluminum wheels with Dark Grey metallic accents
  • Black outside power-adjustable vertical trailering mirrors
  • Body-color door handles
  • 13.4" diagonal GMC Premium Infotainment System with Google built-in
GMC Sierra 3500 HD SLE
  • 6.6L V8 gas engine (401 horsepower / 464 lb-ft of torque) / 6.6L V8 Duramax turbo-diesel engine (470 horsepower / 975 lb-ft of torque)
  • 10-Speed automatic transmission
  • Standard four-wheel drive (4WD)
  • 18-inch machined aluminum wheels with Dark Grey metallic accents
  • Digital Variable steering assist
  • Heated driver and front outboard passenger seats
  • Heated steering wheel
GMC Sierra 3500 HD SLT
  • 6.6L V8 gas engine (401 horsepower / 464 lb-ft of torque) / 6.6L V8 Duramax turbo-diesel engine (470 horsepower / 975 lb-ft of torque)
  • 10-Speed automatic transmission
  • Standard four-wheel drive (4WD)
  • 20" high gloss Black aluminum wheels
  • Off-Road suspension (twin-tube Ranchero shocks)
  • Ventilated driver and front passenger seats
  • Bose® Premium Sound System (7-speakers with subwoofer)
GMC Sierra 3500 HD AT4
  • 6.6L V8 gas engine (401 horsepower / 464 lb-ft of torque) / 6.6L V8 Duramax turbo-diesel engine (470 horsepower / 975 lb-ft of torque)
  • 10-Speed automatic transmission
  • Standard four-wheel drive (4WD)
  • 20-inch Ultra Bright machined aluminum wheels with bright chrome inserts
  • 6-inch Chrome rectangular assist steps
  • Heated rear outboard seats
  • Forge perforated leather seating
GMC Sierra Denali
  • 6.6L V8 gas engine (401 horsepower / 464 lb-ft of torque) / 6.6L V8 Duramax turbo-diesel engine (470 horsepower / 975 lb-ft of torque)
  • 10-Speed automatic transmission
  • Standard four-wheel drive (4WD)
  • 18-inch machined aluminum wheel with High Gloss Black accents
  • Black power-retractable assist steps with LED perimeter lighting
  • MultiPro™ Audio System by Kicker
  • full-grain leather seating
  • 6.6L V8 gas engine (401 horsepower / 464 lb-ft of torque) / 6.6L V8 Duramax turbo-diesel engine (470 horsepower / 975 lb-ft of torque)
  • 10-Speed automatic transmission
  • Standard four-wheel drive (4WD)
  • 20-inch Ultra Bright machined aluminum wheels with gloss Black inserts
  • Signature Denali Ultimate grille in Vadar chrome with High Gloss Black surround
  • Multi-color 15" diagonal head-up display
  • Bose Premium Series with 12-speaker system with CenterPoint
GMC Sierra Denali Ultimate

Exterior Design

The Sierra 3500 HD has a bold, heavy-duty appearance. Its large grille and strong body lines give it a commanding presence. Exterior equipment can further improve its utility.

  • GMC MultiPro Tailgate
  • Power-adjustable trailering mirrors
  • LED lighting
  • X31 Off-Road Package
  • Dual rear-wheel configuration

Interior Design

The Sierra 3500 HD combines work-ready functionality with premium comfort. Depending on the configuration, the cabin can include upgraded seating and additional storage.

  • Heated and ventilated front seats
  • Leather-appointed seating
  • Under-seat storage
  • 40/20/40 front seating
  • Premium interior appointments

Performance

The Sierra 3500 HD offers two primary engine choices. Both pair with a 10-speed automatic transmission. The Duramax diesel provides substantially more torque for demanding towing applications.

  • 6.6-liter V8 gas engine: 401 horsepower and 464 pound-feet of torque
  • 6.6-liter Duramax turbo-diesel V8: 470 horsepower and 975 pound-feet of torque
  • Transmission: Allison 10-speed automatic
  • Drivetrain: Two-wheel drive or four-wheel drive, depending on configuration

Technology

Modern technology helps make the Sierra 3500 HD easier to operate and more useful on the job. Trailering technology also helps drivers monitor and manage their trailer.

  • GMC infotainment system with large touchscreen
  • Google built-in
  • In-Vehicle Trailering App
  • Hitch Guidance
  • Premium Bose audio system
  • Multiple camera views

Safety

The 2026 GMC Sierra 3500 HD makes towing large trailers and campers safer with its numerous exterior cameras.

  • Front and Rear Park Assist
  • Rear Cross Traffic Alert
  • Lane Change Alert with Side Blind Zone Alert
  • HD Surround Vision
  • Transparent Trailer View
  • Trailer Side Blind Zone Alert

Explore the new 2026 GMC Sierra 3500 inventory at Vernon Chevrolet and find the configuration that matches your needs. With online shopping, best-price-forward pricing, and delivery options, you can shop from West Texas or anywhere across the country.

Contact Us to Get Started

* Indicates a required field

Shop the New GMC Truck Lineup