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Heavy-Duty Excellence: The 2025 GMC Sierra HD

Heavy-Duty Excellence: The 2025 GMC Sierra HD

If a regular pickup isn't enough for the job, the mighty 2025 GMC Sierra HD is the way to go. Offered in 2500 and 3500 heavy-duty variants, the V8-powered truck brings unmatched towing and hauling capabilities to the worksite.

Heavy-Duty Excellence: The 2025 GMC Sierra HD

Heavy-Duty Performance

No towing job is too difficult for the Sierra HD's tremendously powerful V8 options. The pickup truck's base engine is a 6.6L gas V8 that cranks out 401 horsepower and 464 lb-ft of torque. The V8 pairs with the legendary Allison 10-speed automatic transmission, which comes with a dedicated tow/haul mode alongside several other work-oriented features. Without any additional equipment, the gas-powered Sierra 3500 HD tows an impressive 4,571 lbs.

Alternatively, drivers can choose the available 6.6L Duramax turbo-diesel V8 that kicks out 470 horsepower and 975 lb-ft of torque. An engine block heater and an engine after-run feature improve the diesel V8's performance in extreme heat and cold. Similar to the gas V8, the powerplant is mated to an Allison 10-speed automatic transmission that enhances its capability. Under the right conditions, the diesel-powered Sierra 3500 HD tows an incredible 36,000 lbs.

Spacious and Versatile Bed

The Sierra HD's spacious and versatile bed design lets you haul larger goods than most other pickup trucks. Both the Sierra 2500 HD and 3500 HD base models feature a 6-foot-long bed with 69.5 cubic feet of cargo volume. If you need additional space, you can opt for the available 8-foot-long bed, which increases the cargo volume to 83.5 cubic feet. All Sierra HD models come with side bed steps for easy access to the pickup box.

To make getting goods in and out of the bed more convenient, the Sierra HD offers the available GMC MultiPro Tailgate. It features six functions, including the ability to form a load stop, a full-width bed step, and an outdoor work surface.

Exceptional All-Terrain Capabilities

When work calls from beyond the pavement, you can answer with the all-terrain capable AT4 trim. The Sierra 3500 HD AT4 comes with 4WD, 11.2 inches of ground clearance, twin-tube Rancho shocks, protective skid plates, and several other off-road features.

The AT4X trim level, which is exclusively offered on the Sierra 2500 HD, allows you to drive even further into nature. The Sierra 2500 HD AT4X is ready to cross unforgiving terrain with its 11.6-inch ground clearance, 31.6-degree approach angle, and 25.7-degree departure angle. The truck's other off-road features include Multimatic DSSV dampers, 35-inch Goodyear Territory MT tires, and available stamped steel bumpers.

Take the GMC Sierra HD to the worksite to power through any towing job. Contact us at Schwan Buick GMC in Mandan, ND to learn about the distinct capabilities of the Sierra 2500 HD and the Sierra 3500 HD, and find out which heavy-duty pickup truck suits you best.

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