The 2026 GMC Sierra 2500HD is a top heavy-duty truck, blending capability and comfort for demanding drivers. Whether on tough job sites, hauling equipment, or towing loads in Missouri, it offers strong performance. At JIM TRENARY OF UNION, INC., we supply the latest Sierra 2500HD to hardworking customers in Union, MO, and nearby areas. Check our new inventory for your ideal truck.
The 2026 GMC Sierra 2500HD builds on its reputation as a leading heavy-duty pickup with improved technology and capabilities. It emphasizes GMC's goal to deliver tough trucks with modern features and safety systems. The Sierra HD Pro Safety suite is standard across the lineup, offering advanced driver assistance. Customers in Sullivan, MO, will value this evolving workhorse that combines durability with practicality.
The 2026 GMC Sierra 2500HD provides two powerful engine options aimed at tackling tough tasks. Its standard 6.6-liter eight-cylinder gasoline engine delivers 401 horsepower at 5200 rpm and 464 pound-feet of torque at 4000 rpm, equipped with direct injection and variable valve timing for efficiency. For maximum power, the available 6.6-liter Duramax Turbo-Diesel eight-cylinder produces 470 horsepower at 2800 rpm and an impressive 975 pound-feet of torque at 1600 rpm, ideal for heavy towing and hauling. Both engines are paired with a refined 10-speed automatic transmission that ensures smooth shifting and performance. Those seeking lighter-duty performance may consider the GMC Sierra 1500. Drivers from O'Fallon, MO will find that whether they opt for rear-wheel or four-wheel drive, the Sierra 2500HD offers the traction and control needed for any situation.
Step inside the 2026 GMC Sierra 2500HD and discover a cabin designed for work and comfort. The 44.5-inch front leg room provides plenty of space for tall drivers on long hauls. Seating for up to six varies from durable vinyl in work trims to full-grain leather in premium models. The 13.4-inch Premium GMC Infotainment System with Google offers seamless connectivity. Heated and ventilated seats, multi-way power adjustments with lumbar support and massage, ensure comfort on long journeys. Hillsboro, MO residents will benefit from clever storage, including under-seat compartments and center consoles for easy organization.
The 2026 GMC Sierra 2500HD features bold styling and purposeful design, available in various configurations like Regular Cab Long Bed, Double Cab, and Crew Cab options. Lengths range from 236.3 to 266.8 inches, width up to 81.8 inches, with LED projector headlamps for visibility and style. The GMC MultiPro Tailgate adds six features for versatility. Browse our new GMC trucks for your ideal choice.
The 2026 GMC Sierra 2500HD prioritizes safety with the Sierra HD Pro Safety suite, featuring Automatic Emergency Braking, Forward Collision Alert, Front Pedestrian Braking, Lane Departure Warning, and IntelliBeam. It has dual-stage airbags, side-impact airbags, and head-curtain airbags for all outboard seats. Stability control, Proactive Roll Avoidance, trailer sway control, and hill start assist ensure confident handling. The HD Rear Vision Camera and optional HD Surround Vision improve awareness, especially when towing or in tight spaces.
The 2026 GMC Sierra 2500HD features advanced technology for productivity and connectivity. It includes standard wireless Apple CarPlay and Android Auto, an In-Vehicle Trailering App with trailer checklists, maintenance, tire pressure, and diagnostics. OnStar with Wi-Fi hotspot keeps drivers connected. For family transport, check out our new GMC SUVs, like the GMC Acadia for comfort and capability. Wentzville, MO customers benefit from Hitch Guidance, Adaptive Cruise Control, and Trailer Side Blind Zone Alert for easier, safer towing.
The 2026 GMC Sierra 2500HD is available in seven distinct trim levels, each offering unique features and capabilities:
Experience the capabilities of the 2026 GMC Sierra 2500HD at JIM TRENARY OF UNION, INC. in UNION, MO. Our team can help you explore configurations, features, and options to find the perfect heavy-duty truck for your needs. Whether a work truck or a luxury hauler, the Sierra 2500HD offers options for every driver. Browse our used inventory for additional choices. Visit us today to schedule a test drive and see why the GMC Sierra 2500HD leads the heavy-duty pickup segment.
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1001 N HWY 47
UNION, MO 63084
