Complete information about the 2021 GMC Sierra Diesel pickup truck, including introduction date, specifications, pricing, pictures and other details.

First GMC, last GMC. Buyers, run in the other direction from the 2021 GMC Sierra 2500HD Denali, or live with daily, expensive regret!

We take a look at the giant 2020 GMC Sierra 2500 HD AT4 with the 6.6L gas engine. Want to know what the AT4 offers for people interested in doing some serious off road travel? We go over all of ...

The 2021 GMC Sierra AT4 looks good, offers plenty of utility, and makes owning a diesel-powered light-duty pickup mighty affordable. The ride and handling are better than the Sierra’s standard ...

2021 GMC Sierra 2500HD Price in Canada The 2021 GMC Sierra 2500HD model comes in 32 trim levels. Canadian pricing ranges from $46,448 to $78,548 MSRP.

The 2021 GMC Sierra 2500HD Base Double Cab Standard Box is equipped with a [n]Gasoline 6.6L V-8 engine that can produce up to 401 hp @ 5200 rpm horsepower and a maximum torque of 464 lb-ft @ 4000 rpm.

What’s 220 pounds to General Motors’ new 6.6-liter Duramax diesel V-8 engine? Not much, based on the minuscule differences between the performances of the 2017 GMC Sierra 2500HD tested here ...

The 2017 GMC Sierra 2500HD Denali is the stud of the GM truck lineup, by far. With its prominent grill, chrome accents, and beefed-up suspension, the 2500HD Denali demands your attention.

Work Truck or Show Truck? The Sierra 2500HD Denali Ultimate looks to elevate the brand’s premium status, with a refreshed Duramax, a new exterior, and more.

At first glance, the 2024 GMC Sierra Denali 2500HD Denali Ultimate seems like the Undercover Boss version of the heavy-duty truck world, as if it put on work boots but forgot to take off the Rolex.