2025 Gmc Sierra 3500hd Payload Capacity. Detailed specs and features for the 2025 gmc sierra 3500hd diesel denali ultimate including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders,. Select a 2025 gmc sierra hd to view feature and capability specs on the official site.

As we can see from these tables, the 2025 gmc sierra hd model with the highest towing capacity rating is the 3500 hd regular cab / long bed drw (dual rear wheel) with. Discover the unmatched 2025 gmc sierra 3500 towing capacity, capable of handling up to 36,000 pounds.