You can find GM twins in every truck segment in the US. The 2021 GMC Sierra HD lineup, is mechanically the same as the Chevy. There we find Series 2 and 3 vehicles with petrol and turbodiesel configuration. The Sierra 2500 and 3500 trucks recently hit the new generation with fresh styling, so there won’t be big changes in the upcoming vehicles. Still, the company is trying to draw more interest with minor updates across the packages.
There are two base versions in the heavy-duty segment. You will pick either a Series 2 Sierra 2500 or Series 3 Sierra 3500 truck. From there, you will have different options, including bed and cab configurations. Premium Denali package is available for both versions, while the dual-rear wheel is reserved only for the 3500HD model and diesel engine. MultiPro tailgate and Transparent trailer view are the top-notch technologies available in the heavy-duty class.
2021 GMC Sierra HD Configurations
The Regular cab can be combined only with the long box. Double and Crew Cab layouts are adding Standard Bed (for Sierra 3500 not available with Double Cab). For both 2021 GMC Sierra HD trucks, there are five trim levels: Base, SLE, SLT, AT4, and Denali. The last two are special packages. The AT4 is an off-road model with special features that will make towing easier in extreme conditions. On the other side is the luxury 2021 GMC Sierra HD Denali version, loaded with some of the most advanced hi-tech kits. Two-wheel drive is standard and buyers can upgrade the ride to the 4×4.
New Petrol Engine
Well, it is not new anymore, but a 6.6-liter petrol unit replaced the previous gasoline mill and added more power. Now, the base version is ready to deliver 401 hp and 464 lb-ft of torque. It also increases the towing capacity, but the gasoline engine is still far away from the best numbers coming with a diesel configuration. A six-speed automatic transmission sends power to rear wheels, or all four corners if required.
Diesel Specs and Towing Capacity
If you are after the 2021 GMC Sierra HD Series 2 truck, then the max towing capacity is 18,500 pounds. By selecting the 2021 Sierra 3500HD Duramax diesel and some proper equipment, you can maximize the hauling potential. Dually truck is ready to pull 35,500 pounds. The difference between this and numbers coming from the main competitors, Dodge Ram 3500HD and Ford F-350 DRW, are not too big. It is just a battle for the reputation. A 6.6-liter turbodiesel unit creates 445 horsepower and 910 lb-ft of torque. Here the GM is behind the rival companies which tuned their outputs to more than 1,000 pound-feet. Instead of a six-pace transmission, a diesel engine will be paired with a 10-speed gearbox.
2021 GMC Sierra HD Price
The cost of the 2021 GMC Sierra HD lineup can vary, depending on the configuration. The base offer starts at $40,000 for the Series 2 truck and $1,500 more for the Sierra 3500. But, different options can make both of them pretty expensive, especially if you select a high-output diesel engine and luxury Denali package.