When heavy-duty work demands exceptional capability, the 2026 GMC Sierra 2500HD delivers outstanding performance, advanced trailering technology, and refined comfort. Available at Butte GMC, this powerhouse pickup truck offers seven distinct trims-Pro, SLE, SLT, AT4, AT4X, Denali, and Denali Ultimate-ensuring there is a configuration to match every driver's needs in Butte, Montana.
Adventure seekers will find the AT4 and AT4X trims ready for challenging terrain. The AT4 comes equipped with an Off-Road suspension featuring Twin-tube Rancho shocks, Hill Descent Control, and protective skid plates covering the transfer case and oil pan. Red recovery hooks and 20-inch High Gloss black aluminum wheels complete the rugged appearance.
The AT4X takes off-road capability further with a driver-selectable full-locking rear e-locking differential for enhanced traction in demanding conditions. The available AT4X AEV Edition adds front and rear AEV-stamped steel bumpers with heavy-duty cast recovery points, AEV Salta Black Gloss aluminum wheels, and stamped-steel skid plates for serious trail protection.
The 2026 GMC Sierra 2500HD provides two formidable engine choices designed to tackle demanding tasks. The standard 6.6-liter V8 gasoline engine produces 401 horsepower and 464 pound-feet of torque, featuring Direct Injection and Variable Valve Timing for efficient power delivery.
For those requiring maximum pulling power, the available Duramax 6.6-liter Turbo-Diesel V8 generates an impressive 470 horsepower and a commanding 975 pound-feet of torque. This B20-Diesel compatible engine comes with an engine block heater for reliable cold-weather starts. Both engines pair with a smooth-shifting 10-Speed Automatic transmission, while drivetrain options include Four-Wheel Drive and Rear-Wheel Drive configurations.
The Sierra 2500HD establishes itself as a serious work truck with available towing capacity up to 22,390 pounds when properly equipped. The comprehensive Trailering Package includes a trailer hitch with 7-pin and 4-pin connectors plus Hitch Guidance technology. Drivers can enhance their towing confidence with the available In-Vehicle Trailering App, which provides checklists, trailer maintenance reminders, trailer security alerts, and trailer electrical diagnostics.
For fifth-wheel and gooseneck applications, the available Gooseneck/5th Wheel Prep Package includes a hitch platform with tray to accept ball, stamped bed holes with removable caps, and a bed-mounted 7-pin trailer harness. The Max Trailering Package adds 3500 HD frame components, leaf springs, a 12-inch rear axle, and an enhanced shock package for maximum capability.
The Denali and Denali Ultimate trims transform the Sierra 2500HD into a premium work truck. Denali features include Forge Perforated Leather seating surfaces, 12-way power-adjustable front seats with lumbar support, heated and ventilated front seats, and heated second-row outboard seats. The Bose Premium 7-speaker audio system with Richbass woofer fills the cabin with quality sound.
The Denali Ultimate elevates luxury with Full Grain Leather seating, 16-way power front seats including lumbar and massage functions, and the Bose Premium Series 12-speaker system with CenterPoint, Richbass woofer, and AudioPilot technology. A power sunroof, power-retractable assist steps with LED perimeter lighting, and the Rear Camera Mirror with full display complete this premium experience. Find your ideal trim in our new GMC inventory today.
The Sierra 2500HD cabin offers generous space with 44.5 inches of front leg room and multiple body configurations, including Regular Cab, Double Cab, and Crew Cab with Standard or Long Bed options. The available 13.4-inch diagonal Premium GMC Infotainment System features Google built-in apps for navigation and voice assistance, wireless Apple CarPlay® and Android Auto™ compatibility, and Bluetooth streaming audio.
The GMC MultiPro Tailgate provides six functional load and access features for versatile cargo management. HD Surround Vision delivers an overhead view of the area around the vehicle. At the same time, Hitch Guidance with Hitch View offers Pan, Zoom, and Tilt image adjustment for precise trailer hookups. The available Bed View Camera monitors cargo in the pickup bed, and Trailer Side Blind Zone Alert helps drivers navigate traffic while towing. A Multicolor 15-inch Diagonal Head-Up Display keeps essential information in the driver's line of sight.
Butte GMC invites drivers throughout Montana to explore the impressive 2026 GMC Sierra 2500HD lineup. Whether you need a capable work truck, an off-road-ready adventure vehicle, or a luxurious daily driver with serious towing capability, the Sierra 2500HD offers the right combination of power and refinement. Browse our new GMC lineup to discover available Sierra 2500HD models, and visit our financing center to explore payment options that fit your budget. Contact Butte GMC today to schedule a test drive and experience the capability of the 2026 GMC Sierra 2500HD firsthand.
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3900 Harrison Ave.
Butte, MT 59701
