GMC Sierra 2500 HD vs Chevrolet Silverado 2500 HD

A comparison of engines and performance

The 2025 GMC Sierra 2500 HD and the 2025 Chevy Silverado 2500 HD both come with formidable engine options that are built for heavy-duty performance. Both trucks come with a standard 6.6-liter V8 engine and produce 401 horsepower and 464 pound-feet of torque. For even more capability, each heavy-duty truck offers an optional 6.6-liter Duramax® turbo diesel V8 engine, which generates 470 horsepower and an impressive 975 pound-feet of torque. Both trucks operate with the proven Allison® ten-speed automatic transmission.

The towing capacities are similar, with both trucks pulling up to 22,070 pounds when properly equipped for fifth-wheel/gooseneck trailering. But there are some differences in terms of towing technologies. The Sierra 2500 HD offers DFW area buyers an exclusive ProGrade™ Trailering System while the Silverado 2500 HD has an advanced Transparent Trailer View. The benefit of the GMC Sierra 2500 HD ProGrade™ Trailering System is that it enhances towing confidence with features like Hitch Guidance, Trailer Sway Control, and a Tow/Haul Mode, which makes it easier and safer to handle heavy trailers.

A comparison of exterior design

The exterior design of both heavy-duty trucks features 17-inch steel or 17- to 20-inch aluminum wheels. The Sierra 2500 HD is elevated to a higher level by standard high-strength LED headlights, but you have to pay extra to get that on higher Silverado 2500 HD trims. For cargo convenience, each truck's bed comes with 12 tie-downs, and on higher trim levels, a spray-in bed liner is available for better durability. A six-position tailgate is offered on both trucks. The MultiPro tailgate is available in the GMC Sierra 2500 HD on most trims while the Multi-Flex tailgate on the Silverado 2500 HD is an option that requires spending more money. Bottom line: The GMC Sierra 2500 simply gives Dallas-Forth Worth area buyers some of the most desirable features without making you pay extra.