Head down to Boucher Buick GMC Waukesha this month to check out the exciting GMC Sierra 2500HD – the latest GMC heavy-duty truck from the top-selling Sierra range! The GMC Sierra 2500HD blends reliable performance with rugged, upscale features, with a range of trims that includes the high-end Denali. Choose from either a 6.6-liter V8 gas engine, or a 6.6-liter Duramax V8 turbo-diesel engine, both paired with a ten-speed Allison transmission. The diesel offers up to 470hp and 975lb-foot from the diesel, making it ideal for heavy loads. You’ll find a range of finishes, crew cab variations, customization options and four-wheel drive possibilities to pick from!
The GMC Sierra 2500HD is packed with exciting tech, including the 13.4-inch premium display in the higher trims and a 7-inch infotainment touchscreen, included as standard. Benefit from advanced connectivity and a wide range of driver safety and assistance features, including adaptive cruise control, forward collision alert, lane departure warnings and blind spot checks. Depending on the trim, there are also sunroof options, heated seats, wireless charging, and an available head-up display.
2026 GMC Sierra 2500HD PRO*Starting at $46,700 |
2026 GMC Sierra 2500HD SLE*Starting at $53,500 |
2026 GMC Sierra 2500HD SLT*Starting at $64,700 |
2026 GMC Sierra 2500HD AT4*Starting at $71,600 |
2026 GMC Sierra 2500HD AT4X*Starting at $83,700 |
2026 GMC Sierra 2500HD Denali*Starting at $75,000 |
2026 GMC Sierra 2500HD Denali Ultimate*Starting at $93,800 |
The 2026 GMC Sierra 2500HD has a strong and bold design, with sleek LED lights, an aggressive front grille, and smart daytime running lights. Check out the upscale finishes on the Denali trim and larger alloy wheels. Inside the cabin, you’ll love the luxurious finishes offset so perfectly against the Sierra’s rugged capability.
The 2026 GMC Sierra 2500HD is yet to be assessed in the industry awards, but it comes from a long line of award winners! Last year’s Sierra won a range of accolades, including 2025’s ALG Residual Value Award in its segment. We expect great things, so head down to Boucher Buick GMC Waukesha to organize your test drive!
The 2026 GMC Sierra 2500HD weighs between 6,203 and 8,605 pounds.
The 2026 GMC Sierra 2500HD’s length depends on the configuration. See box length configuration below:
The 2026 GMC Sierra 2500HD Can tow up to 22,390 pounds3.
The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Dealer sets final price. Click here to see all GMC vehicles' destination freight charges.
