The 2026 GMC Sierra 3500 in San Benito, TX

*2025 Chassis Model Shown

The 2026 GMC Sierra 3500 is built for drivers who demand unmatched capability, durability, and control from a heavy-duty truck. Whether you're towing heavy equipment, hauling extreme payloads, or navigating the jobsite with precision, the GMC Sierra 3500 delivers the strength to get it done-with premium GMC refinement throughout. At Gillman Chevrolet GMC, this ultimate heavy-duty workhorse is ready for professionals and power-seekers alike.

Performance

With its standard 6.6-liter V8 gas engine or available Duramax® 6.6-liter Turbo-Diesel V8, the 2026 GMC Sierra 3500 delivers the raw power and torque needed for extreme workloads. When properly equipped, it offers a maximum towing capacity exceeding 36,000 pounds-ideal for large trailers, commercial equipment, and demanding hauls. Dual rear wheels, integrated towing hardware, and reinforced suspension elements make the GMC Sierra 3500 a dependable tool for serious hauling across tough terrain or long-distance routes. No matter the task, it's built to perform with strength and stability.

Towing Features

The 2026 GMC Sierra 3500 is more than brute strength-it's engineered for smart towing as well. Features like the available ProGrade™ Trailering System, Hitch Guidance with Hitch View, Trailer Sway Control, and Transparent Trailer View make towing more intuitive and secure. The digital trailering checklist and 14 available camera views ensure you stay in control from hook-up to highway. Whether you're pulling a work trailer or a fifth wheel, the GMC Sierra 3500's intelligent systems deliver a smooth, confident towing experience.

Technology

As a new GMC truck, the 2026 GMC Sierra 3500 comes with premum tech to support productivity and comfort. A large infotainment touchscreen with Google Built-In keeps navigation and connectivity at your fingertips, while wireless Apple CarPlay® and Android Auto™ make staying connected seamless. Advanced safety and convenience features-including Adaptive Cruise Control, HD Surround Vision, and a Head-Up Display-help you stay aware and focused whether you're towing cross-country or commuting through town.

Your Heavy-Duty Upgrade Starts Today

When your work demands uncompromising capability, the 2026 GMC Sierra 3500 delivers. It's the ideal choice for business owners, fleet operators, and individuals who need maximum towing power backed by advanced tech and professional-grade comfort. Visit our GMC dealership in San Benito, TX to explore available trims and customization options. Ask about our flexible GMC financing solutions tailored to your business or lifestyle.