When you need uncompromising heavy-duty capability combined with advanced technology and premium comfort, the 2026 GMC Sierra 3500HD delivers exceptional performance for your toughest jobs. This powerful truck offers professional-grade engineering with refined amenities that make every workday more productive and comfortable.
The 2026 GMC Sierra 3500HD has two powertrain options:
Both engines are paired with the Allison 10-speed automatic transmission, engineered specifically for heavy-duty applications. This advanced transmission provides smooth, confident shifts whether you're towing heavy equipment or navigating challenging terrain.
The 2026 GMC Sierra 3500HD lineup offers six dynamic trim levels:
Built on a fully boxed high-strength steel frame, the 2026 GMC Sierra 3500HD delivers the muscle you need for serious work. The available gooseneck 5th wheel prep package includes a factory-installed hitch platform ready to handle your largest trailers. With proper equipment, this heavy-duty truck provides the power to tow extensive loads while maintaining stability and control.
The advanced trailering system includes the In-Vehicle Trailering App with features like a trailering checklist, trailer tire pressure monitoring capability, and multiple camera views to make connecting and towing easier than ever. Contractors in Bloomfield rely on these capabilities for transporting heavy equipment between job sites.
The 2026 GMC Sierra 3500HD integrates cutting-edge technology to improve productivity and passenger safety. The available 13.4-inch diagonal Premium GMC Infotainment System with Google built-in provides navigation, voice assistance, and wireless Apple CarPlay® and Android Auto™ compatibility.
Standard Sierra HD Pro Safety features include Automatic Emergency Braking, Forward Collision Alert, Front Pedestrian Braking, Lane Departure Warning, and IntelliBeam automatic high beams. Available safety technologies expand protection with HD Surround Vision, providing an overhead view for confident maneuvering in tight spaces.
Despite its work-ready capabilities, the 2026 GMC Sierra 3500HD doesn't compromise on comfort. Available features include heated and ventilated front seats, a heated steering wheel, and dual-zone automatic climate control. Higher trim levels add premium leather seating surfaces, power-adjustable seats with lumbar support, and the available Bose® premium audio system.
The innovative MultiPro tailgate, available on select models, features six unique functions to enhance loading, unloading, and bed access. Combined with the available spray-on bed liner and LED bed lighting, these features transform how you work with your truck.
When you choose Hi-Country Buick GMC in Farmington, you're partnering with a dealership committed to your complete satisfaction. Our certified GMC technicians understand the unique demands placed on heavy-duty trucks and provide expert maintenance to keep your Sierra 3500HD performing at its peak.
Our service department offers convenient scheduling, genuine GMC parts, and comprehensive maintenance programs designed specifically for commercial and heavy-duty applications. We understand that your truck is essential to your business, and we're dedicated to minimizing downtime with efficient, professional service.
Take the next step and browse our new inventory online to see the new 2026 GMC Sierra 3500HD models. When you're ready to experience this exceptional heavy-duty truck firsthand, contact or call us with questions and schedule a test drive to see why the 2026 GMC Sierra 3500HD sets the highest standard for heavy-duty trucks.
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1700 San Juan Blvd
Farmington, NM 87401