January 26, 2025

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2021 GMC Sierra 2500HD Review, Ratings, Specs, Prices, and Photos

The 2021 GMC Sierra Major Duty pickup hog mollies are back this year—how could you miss them? Mechanically linked to the Chevrolet Silverado Hd twins, the GMC versions are comparatively a minor far more rock ‘n’ roll. New this 12 months are versions of the pickup that just take it even more off-highway (X31) and just take it even more into superlative naming schemes (Denali Black Diamond). It’s nevertheless supplied in 2500 and 3500 versions, with one- or dual-rear-wheel configurations, with one particular of two V-eight engines. Common-, double-, and crew-taxi configurations are out there, the previous of which is far more well-known with retail purchasers.

It’s a seven. on our ranking scale with two crucial asterisks—heavy-obligation pickups aren’t rated for gasoline overall economy or basic safety. If scored, it would pretty much undoubtedly sink that selection the truck lacks standard active basic safety functions observed on lots of other new vehicles and its gasoline-overall economy figures are about “LOL.” (Read through far more about how we charge vehicles.)

The GMC Sierra Hd unabashedly punches a huge gap in the wind. Following previous year’s update, the heavy-obligation pickup included girth and grandeur, most notably in its huge, upright grille that can be lacquered with acres of chrome.

Assessment proceeds below

The overall body sides are equally impressive for their size and mass. GMC does minor to cover the truck’s mass—it’s wonderful.

A 6.6-liter gas V-eight is standard and makes 401 horsepower. It’s paired to a 6-velocity automatic transmission and can lug far more than 3 tons in the mattress if necessary. A 6.6-liter turbodiesel is a expensive up grade but comes with eye-popping stats: 445 hp, 910 lb-ft, up to 35,five hundred pounds of towing. It’s teamed to a clean ten-velocity automatic and greater for it.

Crew cabs are far more common and are incredibly at ease places to be for up to 5 grown ups. GMC presents quick- or extended-mattress setups (except standard-taxi pickups, which only offer you a extended mattress) and its deep and wide mattress holds loads. A trick tailgate is equipped on most vans and it’s helpful—provided you don’t bang it into a trailer hitch.

Like previous 12 months, the Sierra Hd is supplied in base, SLE, SLT, AT4, and Denali trim stages that start out at about $forty two,000 and run past $80,000. Like other heavy-obligation rivals, no two GMC Sierra HDs have to have to be the same, although most purchasers have regarded the crème de la crème: Sierra Hd Denali with the optional turbodiesel motor. They’re good places to be, and they are also larger than some flats.