The 2026 GMC Sierra 3500HD combines heavy-duty strength, advanced technology, and legendary craftsmanship, offering versatility for commercial or recreational use. Available at Mark Martin GMC in Ash Flat, AR, it's ideal for drivers who demand performance and comfort.
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
1Dealer Discount applied to everyone
New GMC Sierra 3500 Trim Levels
Pro
- Seven-inch diagonal GMC Infotainment System with Bluetooth
- Vinyl seat trim with 40/20/40 split-bench seating
- 18-inch eight-spoke painted steel wheels
- HD Rear Vision Camera
- Power-adjustable vertical trailering mirrors
SLE
- 13.4-inch Premium GMC Infotainment System
- Cloth seat trim
- 18-inch machined aluminum wheels
- Keyless Open and Start
- SiriusXM with 360L
AT4
- Off-road suspension with Rancho shocks
- Perforated leather seating surfaces
- Heated and ventilated front seats
- Adaptive Cruise Control
- Spray-on bedliner
SLT
- Perforated leather-appointed seating
- Heated driver and front passenger seats
- LED fog lamps
- Rain-sensing wipers
- Power-folding trailering mirrors
Denali
- Forge perforated leather seating
- 12-way power front seats with lumbar
- Bose premium seven-speaker audio system
- GMC MultiPro Tailgate
- 20-inch ultra-bright machined wheels
Denali Ultimate
- Full grain leather seating
- 16-way power seats with massage
- Bose Premium Series 12-speaker system
- Power sunroof
- Power-retractable assist steps with LED lighting
New GMC Sierra 3500HD Performance
The 2026 GMC Sierra 3500HD has two powertrains. The standard 6.6-liter gas engine offers 401 horsepower and 464 pound-feet of torque, suitable for daily hauling. The available 6.6-liter Duramax Turbo-Diesel delivers 470 horsepower and 975 pound-feet of torque, ideal for maximum towing. Both engines use a 10-Speed Automatic Allison transmission for smoothness and efficiency. The diesel option supports B20 fuel, appealing to Batesville, AR customers. It comes in 4WD or RWD, with Regular, Double, and Crew Cab options, including standard or long beds.
New GMC Sierra 3500HD Interior
The 2026 GMC Sierra 3500HD cabin showcases GMC's quality, with materials and features varying by trim to suit preferences. Seating options include a front 40/20/40 split-bench with armrest storage, available front bucket seats with a center console on higher trims, and up to six passengers depending on configuration. Highland, AR and Melbourne, AR drivers will find seat trims from durable vinyl in Pro to leather in Denali. Climate control ranges from single-zone to dual-zone, with heated and ventilated front seats on premium trims. Rear seats include a 60/40 foldable bench with storage, and full cab-width storage on Crew Cab models.
New GMC Sierra 3500HD Exterior
The 2026 GMC Sierra 3500HD has a bold look with distinctive styling, animated LED headlamps, LED turn signals, and Daytime Running Lamps for visibility and modern appeal. Wheel options range from 17-inch steel to 20-inch aluminum wheels with chrome or gloss black inserts. The truck bed features a bed assist step, and the GMC MultiPro Tailgate offers six load and access functions. Most trims include standard deep-tinted glass, while power-adjustable trailering mirrors with heated upper glass and turn signals aid heavy loads. Vehicle lengths vary from 236.3 inches for Regular Cab to 266.8 inches for Crew Cab Long Bed.
New GMC Sierra 3500HD Safety
Safety is a top priority in the 2026 GMC Sierra 3500HD, with standard and available features to protect occupants and assist drivers. The Sierra HD Pro Safety suite includes Forward Collision Alert, Automatic Emergency Braking, Front Pedestrian Braking, Lane Departure Warning, and IntelliBeam. Additional features include dual-stage frontal airbags, seat-mounted side-impact airbags, and head-curtain airbags. StabiliTrak stability control offers Proactive Roll Avoidance, traction control, trailer sway control, and hill start assist. Available safety tech includes HD Surround Vision, Trailer Side Blind Zone Alert, Rear Cross Traffic Alert, and Park Assist. Teen Driver technology helps promote safe driving for new drivers in Jonesboro, AR.
New GMC Sierra 3500HD Technology
The 2026 GMC Sierra 3500HD offers extensive connectivity and convenience features across its trim levels. It includes a 13.4-inch Premium GMC Infotainment System with Google built-in apps, navigation, voice assistance, touchscreen, multi-touch display, AM/FM stereo, and Bluetooth. Wireless Android Auto and Apple CarPlay are standard on models. The In-Vehicle Trailering App provides checklists, maintenance reminders, security alerts, and trailer diagnostics. SiriusXM with 360L is optional for better audio, while OnStar Basics offers remote commands, voice assistance, traffic updates, and crash response. Higher trims add Rear Camera Mirror, Head-Up Display, wireless charging, and Bose audio.
Visit Mark Martin GMC Today
Experience the 2026 GMC Sierra 3500HD at Mark Martin GMC in Ash Flat, AR. Our team will help you explore trim levels, configurations, and features of this heavy-duty truck. Whether you need a Pro model or the luxurious Denali Ultimate, we have options to match your needs. Visit us for a test drive and see why the Sierra 3500HD is a leader in heavy-duty trucks.
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Mark Martin GMC
41 HWY 62 WEST
ASH FLAT, AR 72513
- Sales: (870) 705-3986
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