Shop the New 2026 GMC Sierra HD at Jennings Chevrolet Buick GMC
The 2026 GMC Sierra HD delivers unmatched strength, capability, and refined comfort for any heavy-duty task. At Jennings Chevrolet Buick GMC in Chambersburg, PA, you can explore this powerhouse truck and discover the perfect combination of performance and luxury built for work or play.
If you're located in Greencastle, Waynesboro, Hagerstown or nearby, make Jennings Chevrolet Buick GMC your destination for the 2026 GMC Sierra HD. Browse our extensive inventory today and experience the exceptional engineering that sets the Sierra HD apart.
View Inventory2026 GMC Sierra HD Features
DURAMAX 6.6L TURBO-DIESEL V8 ENGINE
Experience legendary power with the available Duramax 6.6L Turbo-Diesel V8 engine, paired with a smooth 10-speed automatic transmission. Its efficient turbocharger delivers exceptional torque and towing capability for any heavy-duty challenge.
ADVANCED TRAILERING TECHNOLOGY
The Sierra HD offers cutting-edge trailering-assistance features, including trailer sway control and integrated trailer brake systems. Confidently tow heavy loads knowing your truck is engineered for precision, stability, and control.
LUXURIOUS INTERIOR MATERIALS
Inside the Sierra HD Denali Ultimate, you'll find Alpine Umber leather seating with plaited contrast stitching, as well as embossed and laser-etched topographical designs inspired by mountain summits. Every detail reflects premium craftsmanship and attention to luxury.
LED PROJECTOR HEADLAMPS & SIGNATURE LIGHTING
Stand out on the road with LED projector headlamps and animated signature lighting that not only enhance safety but also elevate the Sierra HD’s bold exterior design. Illuminate your path with style and precision.
Experience the 2026 GMC Sierra HD at Jennings Chevrolet Buick GMC
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May not represent actual vehicle. (Options, colors, trim and body style may vary)
The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.