How Much Can the 2026 GMC Sierra HD Tow and Haul?

When your work demands serious capability, the 2026 GMC Sierra HD towing capacity delivers professional-grade performance that handles your toughest jobs. At Vaughn Automotive, serving Ottumwa drivers, this heavy-duty lineup combines exceptional towing ratings with payload strength for demanding applications.

Towing Capacity That Handles Your Biggest Jobs

The 2026 GMC Sierra HD towing capacity reaches impressive heights across both models. The GMC Sierra 2500 HD can tow up to 22,390 pounds conventionally when properly equipped with the available Duramax® diesel engine, while the GMC Sierra 3500 HD delivers up to 36,000 pounds with gooseneck or fifth-wheel configurations. Both models offer exceptional conventional towing capability. Your specific rating depends on cab configuration, bed length, drivetrain choice, and wheel configuration.

Payload Ratings for Heavy-Duty Hauling

Beyond towing, the 2026 GMC Sierra HD handles serious payload demands. The GMC Sierra 2500 HD offers a maximum payload capacity of 3,863 pounds in properly equipped rear-wheel drive crew cab configurations. The GMC Sierra 3500 HD increases capability to 7,290 pounds maximum payload, with dual rear wheel models providing additional stability for heavy loads in construction and equipment transport applications.

Power Behind the Performance

Two powerful engines drive the capability of the new GMC Sierra HD. The standard 6.6-liter V-8 gasoline engine produces 401 horsepower and 464 lb-ft of torque, paired with a responsive 10-speed automatic transmission. For maximum towing confidence, the available Duramax® 6.6-liter turbo-diesel V-8 delivers 470 horsepower and massive 975 lb-ft of torque at just 1,600 rpm. The ProGrade® Trailering System provides up to 14 camera views, including a transparent trailer view, helping you maneuver heavy loads with precision and confidence.

Test Drive the 2026 GMC Sierra HD in Ottumwa, IA

Ready to discover which GMC Sierra HD configuration matches your towing and hauling needs? Our team at Vaughn Automotive Chevrolet Buick GMC of Ottumwa understands the demands southern Iowa drivers face and can help you find the perfect heavy-duty truck. Contact us today to explore our GMC Sierra 2500 HD and 3500 HD inventory and experience professional-grade capability firsthand.

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