2025 Gmc Sierra 3500hd Towing Capacity. The hd sierra and its twin the chevrolet silverado hd are designed for heavy towing and hauling. The motortrend buyer's guide has the 2025 gmc sierra 3500hd specs you need, from dimensions and cargo space to power and mpgs.

The lowest towing capacity rating for the refreshed 2024 gmc sierra hd is 14,500 pounds, as attached to a variety of different model configurations. 2025 silverado 2500 hd starting at $45,300 * as shown: