Heavy-Duty Excellence: The 2025 GMC Sierra HD

When you need serious hauling power beyond the impressive capability of the Sierra 1500, the 2025 GMC Sierra HD is the workhorse for you. Both the 2500 HD and 3500 HD can be had with a gas or diesel engine, rear- or all-wheel drive, and many cab and bed configurations. It can also be equipped with luxurious interior features to keep you comfortable and simplify your day.

Powerful Engine Options

Both the 2025 Sierra 2500 HD and 3500 HD come standard with a hefty 6.6-liter V8 gas engine that makes 401 horsepower and 464 pound-feet of torque, paired with a 10-speed automatic transmission. To unlock the ultimate towing capability, a 6.6-liter turbo-diesel V8 is also available for 470 hp and an incredible 975 lb-ft of torque.

Drivetrain Options

The base Pro model of the Sierra 2500 HD features standard rear-wheel drive, but four-wheel drive is available and comes standard on the higher trim levels. The 3500 HD models have similar offerings and add dual rear- and four-wheel drive options for maximum traction to help you haul heavy loads.

Cab and Bed Configurations

Whether you need more space for cargo than people, extra room for passengers, or a balance between the two, there’s a cab and cargo bed configuration to meet your needs. Depending on the trim level, the 2500 HD is available as a three-seat regular cab with a long 98.27-inch-long bed, a six-seat double cab with the long bed or the 82.2-inch-long standard bed, and an extra-roomy crew cab with either bed length.

The 3500 HD mostly offers the same configuration options, except the double cab can only be combined with the long bed.

Max Trailering Capacities

Whatever your heavy towing needs may be, there’s a configuration that’s up to the task, and all models now come with a standard integrated trailer-brake controller. The maximum weight you can tow with the Sierra HD ranges from 14,500 lbs for the 2500 HD Pro base configuration to 36,000 lbs when you equip the 3500 HD with the regular cab, long bed, a fifth wheel or gooseneck hitch, diesel engine, and dual rear-wheel drive.

If you’re looking for your next heavy-duty truck, the 2025 Sierra HD is up for handling hard work and making each journey more fun and efficient. Visit us at Schepel Buick GMC in Merrillville, IN to check it out for yourself and compare the options in person.

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