2026 GMC Sierra 3500 Towing Capacity

What is the towing capacity of the GMC Sierra 3500 HD? When properly equipped, this heavy-duty truck can tow up to 36,000 pounds. That said, when you’re behind the wheel of a 2026 Sierra 3500, you’ll confidently tow heavy equipment on the jobsite or haul a trailer across Plainfield on the weekend. In addition to the maximum towing capacity, other specs you should be aware of include:

• Maximum available GCWR of 43,900 pounds
• Maximum available payload of 7,290 pounds
• Maximum available GVWR of 14,000 pounds

Read on if you want to explore this truck’s engine options and towing features.

2026 GMC Sierra 3500 Engines

This heavy-duty Sierra model is available with 2 engine options: the standard V8 gas engine and the optional diesel engine. While the gas powertrain delivers outstanding performance, the diesel one is available for drivers who want more power on the roads of Shorewood. Check out the details for these options below:

6.6L V8 Gas Engine

• 401 hp
• 464 lb-ft of torque
• Paired with an Allison® 10-speed automatic transmission

6.6L Duramax Turbo-Diesel V8 Engine

• 470 hp
• 975 lb-ft of torque
• Paired with an Allison® 10-speed automatic transmission or a 10-speed automatic transmission with integrated Power Take-Off (PTO)

2026 GMC Sierra 3500 Towing Features

Along with offering an impressive towing capacity, the 2026 GMC Sierra 3500 HD also features various advanced trailering tech to ensure you enjoy a smooth-sailing towing experience every time. Take a look at some of these technologies here:

• ProGrade Trailering System: Hitch and tow with ease thanks to this advanced suite of available intelligent technologies.
• Up to 14 available camera views: Confidently tow a trailer with the transparent trailer view, which is compatible with most traditional, gooseneck, and fifth-wheel trailers.
• Adaptive Cruise Control with Trailering: This optional feature allows the vehicle’s Adaptive Cruise Control system to account for additional drag and increased braking distances when towing a trailer.
• In-Vehicle Trailering App: This app features a checklist, trailer maintenance reminders, and more functionality to streamline your trailering experience on the roads of Minooka.

Explore The Sierra 3500 HD Further With D'arcy Buick-gmc

Now that you know what the 2026 GMC Sierra 3500 towing capacity is, what’s next? If you’d like to learn more about this truck, discover its exterior or trim options. Feel free to contact our Joliet dealership with any questions.