2023 GMC Sierra 3500HD Full Review, Engine Specs, Release Date, Price

The forthcoming 2023 GMC Sierra 3500HD should arrive next year with some small exterior and interior enhancements. If you didn’t know, this truck is one of the best in heavy duty class offering stout towing and hauling capabilities. On top of that, it rides on a strong platform, and it has no less attractive cabin than the light-duty GMC 1500 truck. Actually, the cabin is roomy and is fitted with the latest technology.

Like the previous generation, the new one will continue to be powered by the same 6.6-liter gasoline V8 producing 401 horsepower, 464 lb.-ft of torque. This unit is paired with a six-speed automatic transmission. Along, the manufacturer also offers a stronger 6.6-liter turbocharged diesel V8 that is capable of producing 445 hp, 910 lb.-ft. Unlike the base one, this engine is mated to a 10-speed automatic transmission.

2023 GMC Sierra 3500HD side

2023 GMC Sierra 3500HD Exterior

The 2023 Sierra 3500HD pickup won’t be mistaken for any other truck in heavy-duty class. This model looks robust and is emblazoned with red letters GMC across the grille. It also features LED headlights, taillights, and C-shaped LED strips as daytime running lights. The Denali treatment is the most favorite, and it includes a more attractive grille, side mirror housings finished in chrome, and unique wheels.

In general, this truck is most recognized by its large proportions and a hood with a prominent scoop. As before, the Sierra 3500HD comes with built-in steps behind the cab and also on the rear bumper for easy access to the bed. On the other hand, you can get additionally roof-marker lights that are standard on all dual-rear-wheel models as well as on all Denali versions.

First Look Inside

The 2023 GMC Sierra 3500HD offers a modern cabin and outstanding headroom and legroom. Like the outgoing model, the forthcoming one will keep the same seating layout with enough room to fit five passengers. As for the design inside, it will vary depending on the chosen trim level. The manufacturer will stand out in the market with base, LE, SLT, AT4, and Denali trim levels. SLE models are available in regular, Double, or Crew cabs, while SLT comes with a Double or Crew cab.

The AT4 and Denali are also available, but they come solely with the Crew cab. The base Sierra HD offers a large head-up display (HUD) and a user-friendly 7-inch touch-screen infotainment system. The Denali version is much more lavish and is highlighted by premium leather seating surfaces, contrast stitching, along with dark aluminum trim and open-pore wood. The AT4 is off-road-focused trim, and it includes darkened trim, aluminum finishes, and sill plates. The seats of this model are covered in Jet Black leather, while headrests are embroidered with an AT4 logo. The 2023 Sierra HD also offers a Rear Camera Mirror, and several drivers assistances features like forward-collision alert with automatic emergency braking, lane-departure warning, and automatic high beams.

2023 GMC Sierra 3500HD cabin

2023 GMC Sierra 3500HD Powertrain Specs

The new 2023 GMC Sierra 3500HD is a truck made for work. So, considering that, it needs strong and potent engines. As the outgoing model, the forthcoming one will be available with two engine choices. The base model uses a 6.6-liter gasoline V8 engine producing 401 horsepower and 464 lb.-ft of torque. Like before, the manufacturer decided to pair this unit with a six-speed automatic transmission.

Besides, GMC also offers a 6.6-liter turbocharged diesel V8 capable of developing 445 hp with 910 lb.-ft of torque. This engine comes with special made 10-speed automatic transmission. When properly equipped, the Sierra 3500 HD can tow up to 36,000 pounds and more than 5,000 pounds of payload. The Ford F-350 Super Duty and Ram 3500 are models in the same class and both offer tremendous 37,000 pounds thanks to a massive 1,050 lb.-ft of torque.

2023 GMC Sierra 3500HD

When Can We Expect the 2023 GMC Sierra 3500HD?

The upcoming 2023 GMC Sierra 3500HD will get some small modifications, mostly on the front and rear. On the other hand, its interior will offer more comfort, and it should be filled with tech, just like the lighter GMC Sierra 1500 model. We expect this truck to go on sale next year with a slight increased price.

The long box and dual rear wheels start at less than 70,000, and it can climb to $80k for the range-topping variant. The diesel-powered drivetrain cost additionally $10k above the price above. These prices are considerable, and they are currently in the same line with heavy-duty pickups from Ford and Ram.

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