2026 GMC Sierra 2500 HD Performance

June 5th, 2026 by

2026 GMC Sierra 2500 Driving Off Road
 

2026 GMC Sierra 2500 HD Fast Facts

  • Engine Options: 6.6L V8 Gas Engine or available Duramax® 6.6L Turbo-Diesel V8.
  • Maximum Towing Capacity: Up to 22,390 pounds when properly equipped.
  • Key Technology: Available Adaptive Cruise Control with Trailering and up to 13 camera views.
  • Top Trims: Available in Pro, SLE, SLT, AT4, AT4X, Denali, and Denali Ultimate.

 

The 2026 GMC Sierra 2500 is an HD truck that provides drivers throughout Portland, Beaverton, and the surrounding areas with the power and performance they need to accomplish more. If you are interested in this capable heavy-duty pickup, learn about the new GMC Sierra 2500 specs today! Our guide reviews the new GMC Sierra engine options to help you decide whether to schedule a test drive at our dealership in Gresham. Contact Weston Buick GMC to schedule an appointment, and let us know if you have any questions.

 

 

New GMC Sierra 2500 Engine Options And Specs

The new GMC Sierra 2500 specs impress, regardless of which engine your selected trim level includes. The available Duramax® diesel engine is standard on the Denali Ultimate and available on the Pro, SLE, SLT, AT4, and AT4X. Check out the specs for each engine below as you consider your work and play needs in Vancouver, WA and the nearby communities:

6.6L V8 Gas Engine

  • Horsepower: 401 hp
  • Torque: 464 lb-ft
  • Transmission: 10-speed automatic

Duramax® 6.6L Turbo-Diesel V8

  • Horsepower: 470 hp
  • Torque: 975 lb-ft
  • Transmission: 10-speed automatic
  • Towing Capacity: 22,390 pounds*

The above towing capacity requires a 2500 HD Regular Cab long bed 2WD model that includes the available Duramax® 6.6L Turbo-Diesel V8 engine, Max Trailering Package, and other appropriate equipment. Other configurations also offer impressive towing capabilities, such as the GMC Sierra 2500 HD Crew Cab, which features an available max tow rating of up to 21,870 pounds.** Before you sign the paperwork, you can value your trade online to see how much your current vehicle is worth toward a new heavy-duty truck.

New GMC Sierra 2500 Standard And Available Performance Features

Whether you’re driving in Beaverton or anywhere else, the GMC Sierra 2500 includes features that make every ride safer and more enjoyable. Check out standard and available performance features across the configurations:

  • Adaptive Cruise Control with Trailering
  • Up to 13 camera views, including transparent trailer view
  • MultiPro™ Tailgate and MultiPro Tailgate Audio System by Kicker®
  • X31 off-road package with twin-tube Rancho® shocks and skid plates
  • Auxiliary trailer camera
  • Forward Collision Alert
  • Following Distance Indicator
  • Front Pedestrian Braking
  • IntelliBeam
  • Lane Departure Warning
  • Automatic Emergency Braking
  • Buckle to Drive
  • And more!

Experience The New GMC Sierra 2500 Specs At Weston Buick GMC

Do you have questions about the new GMC Sierra 2500 engine options? Are you ready to take a test drive at our dealership in Gresham? Call (503) 665-2166 or contact us online today. Our team is standing by to help you explore your auto finance options and secure a payment plan that works for your budget. Visit Weston Buick GMC today to experience the raw capability of the heavy-duty Sierra pickup line for yourself!

*Requires a 2500 HD Regular Cab long bed 2WD model with available Duramax 6.6L Turbo-Diesel V8 engine, Max Trailering Package, 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.

**Requires a Crew Cab long bed 2WD model with available Duramax 6.6L Turbo-Diesel V8 engine, Max Trailering package, Gooseneck/Fifth-Wheel Prep Package, 18-inch or 20-inch wheels and tires 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.

 

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