The new 2021 GMC Sierra 2500HD is confirmed and it will introduce further updates. This truck is trendy thanks to its robust design. Moreover, the upcoming model will be redesigned, and we can expect it to hit the markets later next year. According to the latest spy photos, the new model will receive very subtle cosmetic upgrades. GMC will definitively make this model very competitive as it does with the smaller Sierra 1500.
Besides that, in terms of performances, we can expect the same engines. General Motors offers a wide range of engines and trim levels. AT4 variant that is off-road capable is available as well, and it provides a wilder look.

2021 GMC Sierra 2500HD First Look
The heavy-duty truck 2021 GMC Sierra 2500HD will offer a better and refreshed look. Also, there will be many improvements in terms of mechanics. However, the outside design will get a minimal change and GMC Sierra 2500HD will continue to offer the same robust and practical look.
On top of that, the ProGrade trailering system is available. This system is a highlight on the offer and it provides 15 different views of the truck and trailer. Thanks to that, driving and parking will be facilitated.
As we have already mentioned, AT4 is the off-road model that will also be available. This truck offers a more unique exterior design than the base one. It offers off-road suspension and rear locking differential. Also, the Sierra 2500HD AT4 comes with the standard skid plates and it comes with better safety. Moreover, features like hill descent control, the hill start assist, and traction control are standard.

Interior Refreshments
The interior design of Sierra HD models will be refreshed. According to the latest reports, there will be more quality materials and better safety. General Motors will improve HD line and most of the trucks will borrow cues from the smaller Sierra 1500.
The heavy-duty truck features a large head-up display (HUD) and an easy-to-use touchscreen infotainment system. Also, General Motors added more standard features. Denali is particularly one of the expensive trim and it provides a rich package of features. This trim includes premium leather seating surfaces, contrast stitching, and trims finished in dark aluminum and open-pore wood. On top of that, the AT4 model offers more aluminum finishes on the steering wheel, center stack and sill plates.

Powerful Engines and Towing Rate
The heavy-duty truck 2021 GMC Sierra 2500HD truck will keep the same engines as the predecessor. Buyers have a choice to go for 2- or 4-wheel drive (2WD, 4WD) and two powerhouse engines. The base model will, for sure, use the same 6.6-liter V8 gasoline engine that can produce 401 hp and 464 lb-ft of torque. Furthermore, this powertrain will use a 9-speed automatic gearbox.
The next option and stronger is a 6.6-liter V8 Duramax diesel engine that delivers 445 horsepower and up to 910 lb-ft of torque. Thanks to this powerful engine and a new 10-speed Allison transmission, GMC Sierra 2500HD is a tow king. The truck with this engine can tow a maximum of 35,000 pounds.

2021 GMC Sierra 2500HD Price and Release Date
The upcoming 2021 GMC Sierra 2500HD is a robust, heavy-duty truck that will introduce more updates. The new model, according to some reports, will start at $36,500, which is $2000 more than before.
Moreover, there will be numerous modifications and choosing the range-topping Denali trim level will raise the price to $62,000. Latest GMC’s heavy-duty lineup is expected to arrive in the last quarter of 2020.