Get to Know the 2026 GMC Sierra 3500HD near Milwaukee, WI

2026 GMC Sierra 3500HD

2026 GMC Sierra 3500HD

*MSRP Starting at $56,995


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TOP FEATURES

AVAILABLE TOW UP TO
30,800 LBS.1

AVAILABLE
DURAMAX® 6.6L TURBO-DIESEL V8 ENGINE
WITH 975 LB.-FT. OF TORQUE AND 470 HP

WORLD’S FIRST
SIX-FUNCTION MULTIPRO™ TAILGATE
WITH AVAILABLE KICKER® AUDIO SYSTEM2

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2026 GMC Sierra 3500HD

Overview of the 2026 GMC Sierra 3500HD in Waukesha

Looking for a large pickup with cutting-edge safety technologies and high-end build credentials? Then check out the impressive 2026 GMC Sierra 3500HD, with its choice of 6.6L V8 gas engine or 6.6L Duramax turbo diesel engine, paired with a ten-speed automatic transmission. Standout features include the advanced trailering technology, impressive touchscreen infotainment screen, impressive towing, adaptive cruise control and Multi-Pro tailgate. There’s also a wide range of trims and customization options, and the Denali Ultimate is a particularly exciting choice if you love premium finishes.

Technology highlights

The 2026 GMC Sierra 3500HD offers up to 20,000 lbs of towing, and a max payload of 3,945 lbs, depending on your configuration. The driver safety and assistance stack is particularly impressive, with and innovative snow plow feature for bad weather, audio start, adaptive cruise control and an available head-up display.

2026 GMC Sierra 3500HD

2026 GMC Sierra 3500HD Trim Levels

2026 GMC Sierra 3500HD Pro

*Starting at $56,995

2026 GMC Sierra 3500HD Pro

2026 GMC Sierra 3500HD SLE

*Starting at $61,195

2026 GMC Sierra 3500HD SLE

2026 GMC Sierra 3500HD SLT

*Starting at $68,495

2026 GMC Sierra 3500HD SLT

2026 GMC Sierra 3500HD AT4

*Starting at $75,395

2026 GMC Sierra 3500HD AT4

2026 GMC Sierra 3500HD Denali

*Starting at $78,695

2026 GMC Sierra 3500HD Denali

2026 GMC Sierra 3500HD Denali Ultimate

*Starting at $99,795

2026 GMC Sierra 3500HD Denali Ultimate

2026 GMC Sierra 3500HD

Design and Styling

The GMC Sierra 3500HD is refreshed for 2026 with LED lighting, daytime running lights, and a configurable Multi-Pro tailgate. Check out the spray-in bed liner, tie-downs and 120-volt power outlet. Some models have bed steps too. There’s a range of wheel options, plenty of legroom, comfortable seats and a great range of colors to choose from!

Reviews for the GMC Sierra 3500HD

We expect the 2026 GMC Sierra 3500HD to do well in the industry awards as it’s always been a top favorite, and has one of the highest residual figures for pickups in the industry. Last year it was voted North American Car of the Year for its build, performance and safety stack. Head to Boucher Buick GMC Waukesha to organize your test drive today!

2026 GMC Sierra 3500HD

Reviews for the GMC Sierra 3500HD

How much does a GMC Sierra 3500 cost?

The 2026 GMC Sierra 3500HD starts at $56,995 with the Pro trim level.


How much can a GMC Sierra 3500 tow?

The 2026 GMC Sierra 3500HD can tow up to 36,000 pounds..

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2026 GMC Sierra 3500HD

Shop the 2026 GMC Sierra 3500HD Today!

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.

  1. Requires a 3500 HD Denali Crew Cab DRW model with available Duramax 6.6L Turbo-Diesel V8 engine, Gooseneck/Fifth Wheel Prep package and gooseneck/fifth-wheel hitch. Maximum trailering ratings are intended for comparison purposes only. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The trailering capacity of your specific vehicle may vary. The weight of passengers, cargo and options or accessories may reduce the amount you can trailer.
  2. Non-GM warranty. Limited warranty by KICKER®, 3 years/36,000 miles, whichever comes first. For more information, contact your dealer.
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Boucher Buick GMC of Waukesha 43.0268, -88.1931.