The 2026 GMC Sierra HD is built for drivers who expect their truck to handle demanding jobs every day. With serious strength under the hood and advanced trailering features, it turns heavy workloads into manageable tasks. Wilkinson Chevrolet GMC highlights what makes this heavy-duty model a dependable tool for both job sites and long-haul towing.
Heavy-Duty Power and Real Towing Strength
The 2026 GMC Sierra HD offers two strong engine options: a 6.6-liter V8 gas engine, and an available 6.6-liter Duramax® Turbo-Diesel V8 for maximum pulling power. Properly equipped, the GMC Sierra 2500 HD can tow up to 22,390 lbs, while the GMC Sierra 3500 HD reaches a massive 36,000 lbs with the right configuration.
Payload capacity also climbs above 3,600 lbs, giving the bed enough strength to carry heavy materials, tools, and equipment without strain.
Trailering Tools That Simplify Every Job
GMC equips the 2026 GMC Sierra HD with technologies designed to make towing more intuitive. Available features include the ProGrade™ Trailering System, Hitch Guidance with Hitch View, and an in-vehicle trailering app that monitors tire pressure, trailer lights, and maintenance needs. Multiple available camera views help you keep an eye on the trailer from every angle, making backing up, merging, and maneuvering far easier.
Practical Features for a Smoother Workday
Beyond towing, the 2026 GMC Sierra HD includes work-ready features that support productivity. The available MultiPro™ Tailgate offers six different positions for loading and working from the bed, while integrated bed lighting and tie-downs make organizing cargo simple. Inside, supportive seating, smart storage, and a large infotainment display keep long days comfortable and organized.
Experience the 2026 GMC Sierra HD at Wilkinson Chevrolet GMC
With immense towing strength, smart trailering tools, and practical design, the 2026 GMC Sierra HD is built to make demanding work easier. Visit Wilkinson Chevrolet GMC to take a test drive and see how this heavy-duty truck can support your toughest days.


