2024 GMC Sierra 2500HD AT4X: Best Off-Road Heavy-Duty Truck

2024 GMC Sierra 2500HD AT4X diesel

The updated 2024 GMC Sierra HD has just been presented to the public by GM, and a large number of changes are included. Notably, the most recent update for the 2024 model year involves the introduction of the new 2024 GMC Sierra 2500HD AT4X, an even more competent off-roader trim level scheduled to go on sale later in 2023 when the first 2024 GMC Sierra HD units reach dealers in the current year.

The GM has stated that the new 2024 GMC Sierra 2500HD AT4X would be “really off-road capable,” despite the fact that GM has not yet released all of the vehicle’s information. However, at this moment, we may imagine enhancements like an increased ride height, front and rear e-lockers, and knobby Goodyear Territory MT tires. It is still unknown exactly what will supply and consist of. According to earlier reporting by GM Authority, the 2018 GMC Sierra HD AT4X, unlike the lighter-duty Sierra 1500 AT4X, does not appear to be going to be fitted with Multimatic DSSV dampers.

2024 GMC Sierra 2500HD AT4X off road

2024 GMC Sierra 2500HD AT4X Redesign, New Features

The upcoming off-roaders have many things in common, and effectiveness is one of them. The new modern offer contains a lot more advantages than we had a chance to see in previous models. The upcoming 2024 GMC Sierra 2500HD AT4X will suffer smaller changes regarding redesign methods, but notable ones will be visible from the back side of the truck. However, even if becomes quite lighter in the new redesign, the towing capacity is still the same. These differences are notable while accelerating the speed.

The new Sierra 2500HD works smarter thanks to additional trailer assistance technologies. These ones are including Transparent Trailer View, Trailer Side Blind Zone Alert, and optional Adaptive Cruise Control with Trailering. The heavy-duty Sierra is a good option for people who has a need and live on heavy terrains, even though it doesn’t have the maximum towing of rivals like the Ram HD and Ford Super Duty.


The 2024 Sierra 3500HD AT4X has sizable dashboards with switchgear that is easy to use. The front bench on the majority of models may be split-folded and converted into a pair of bucket seats with a center console. A head-up display, a heated steering wheel, heated and cooled front seats, and wireless charging are further interior Sierra options. The AT4X version will have largely updated variations of the infotainment system. However, compared to Denali upper trim version, this model lacks luxury soft surfaces.

The GMC has made plenty of room for passengers in the crew cab and plenty of cubby storage. The rear bumper features steps at each corner, and long cargo boxes have built-in steps on both sides of the bed. Additional customization options for the box include LED lights, retractable tie-downs, and a 120-volt outlet. The ingenious multi-function tailgate, which has six configurations and includes a work area and bench, is the new Sierra’s most impressive feature.

2024 GMC Sierra 2500HD AT4X

2024 GMC Sierra 2500HD AT4X Engine, Specs, Diesel

Two engine options are available for the 2024 GMC Sierra 2500HD. The offer starts with the 6.6L V8 L8T gasoline. This engine is still capable of producing 401 hp and 464 pound-feet of torque. It is mated to an Allison-branded 10-speed automatic transmission. This is rather of the GM six-speed automatic transmission which was formerly standard on gasoline-powered Sierra HD models. The 6.6L V8 L5P turbodiesel Duramax engine is one of the options, and it now has a rating of 470 hp and 975 pound-feet of torque. These numbers are up from the 445 horsepower and 910 pound-feet it had before the 2024 model year update.

The most powerful Sierra 3500HD can tow up to 36,000 pounds. The diesel engine, normal cab, rear-wheel drive, dual-rear-wheel axle, and gooseneck hitch are however necessary for that enormous capacity. The identical truck’s maximum weight is reduced to 32,000 pounds when it has a fifth-wheel hitch. The Sierra 2500HD is only available with a single rear-wheel axle. Its most powerful model is capable of towing 22,500 pounds.

2024 GMC Sierra 2500HD AT4X price

2024 GMC Sierra 2500 HD AT4X Release Date and Price

There was info about pricing the new model of 2024 GMC Sierra 2500HD AT4X. It states that may be several trim options for this model. This off-road truck with heavy-duty features may cost with starting price of $45,500. This model is basic with fair equipment whatsoever.

The more updated units with stronger towing capacity and improved infotainment systems and engines will have a higher price. According to some data, the most updated model should cost over $55,000. However, before the final launch, we have approximately calculated the value of these units. Regarding the technology and investments we encountered, the price is more than adjusted. We expect the final word from the GM by the end of the current year.

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