GMC Sierra 2500HD Pickup, starting at 46,300 $

Q: What drivetrain options does the GMC Sierra 2500HD offer?

Available drivetrains: All Wheel or Rear Wheel.

Q: How powerful is the GMC Sierra 2500HD?

Peak output for the GMC Sierra 2500HD is up to 470 HP, depending on trim.

Q: What are the GMC Sierra 2500HD's length, width, and height?

The GMC Sierra 2500HD measures 241.22 in. long, 81.85 in. wide, and 79 in. tall.

The GMC Sierra 2500HD Pickup impresses with 470 HP and an attractive starting price of 46,300 $ . Here are all the details at a glance.

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from $46,300

GMC Sierra 2500HD

Price : 46,300 - 93,600 $
Body Type : Pickup
Engine Type : Gasoline,
Transmission : Automatic
Drive Type : All Wheel, Rear Wheel
Power HP : 401 - 470 HP
Seats : 3 - 6
Model Year : 2,025
Torque : 464 - 975 lb-ft
Fuel tank capacity : 36 gal
Length : 236.3 - 266.77 in.
Width : 81.75 - 81.85 in.
Height : 79 - 82 in.
Brand : GMC

Big-Truck Presence, GMC Polish

The GMC Sierra 2500HD looks every inch the heavy hauler, with a towering grille, squared-off fenders, and signature C-shaped LEDs that announce business before the engine even fires. Trims like AT4 and AT4X turn down the chrome and turn up the attitude, while Denali models lean into a more premium, polished vibe. At roughly 236–267 inches long, about 82 inches wide, and up to 82 inches tall, it’s a lot of truck and not a guaranteed garage fit. Practical touches like large bed steps and the clever MultiPro tailgate are reminders that form follows function here.

Workday Command Center

Inside, the Sierra 2500HD mixes big-truck durability with modern tech, anchored by a crisp 13.4-inch touchscreen and a 12.3-inch digital instrument cluster on most trims. Large, well-damped knobs and buttons make gloves-on operation easy, and storage cubbies are everywhere. Material quality rises sharply as you climb the range, with Denali Ultimate layering in plush leather, open-pore wood, and available massaging seats. It feels ready for long days, whether that’s at job sites or interstate miles with a trailer in tow.

Space for Crew and Cargo

This HD hauler offers seating for 3, 5, or 6 depending on cab and seat configuration, with Crew Cab models providing adult-friendly legroom for the back bench. Bed choices cover the bases for tools and toys, with standard and long boxes, plenty of tie-downs, and optional bed lighting. The six-function MultiPro tailgate makes loading, stepping up, and even workbench duty easier. It’s a setup built to swallow gear without swallowing your patience.

Muscle Under the Hood

Most versions run a stout 6.6-liter gas V8 with 401 hp and 464 lb-ft, paired to a 10-speed automatic that keeps the power in the sweet spot. The available 6.6-liter Duramax turbo-diesel ups the ante to 470 hp and a thunderous 975 lb-ft, delivering relaxed, confident thrust with heavy trailers. Rear-wheel drive is standard on many work-focused models, while four-wheel drive is widely available for all-weather traction. Noise is well contained, and the diesel’s strong exhaust brake helps tame long descents.

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Numbers That Move Jobs

Properly configured, the Sierra 2500HD can tow well over 20,000 pounds with the diesel, with conventional and fifth-wheel options to match your trailer. Payload generally lands in the 3,200–3,900-pound range depending on cab, bed, and drivetrain, enough for tools, tongue weight, and a full crew. GMC’s ProGrade Trailering system adds up to 14 camera views, transparent trailer mode, hitch guidance, and onboard trailer profiles. In real life, those features shave minutes off every hook-up and add confidence when threading a big rig through tight spots.

Ride, Steering, and Control

An independent front suspension helps the GMC steer more precisely than some solid-axle rivals, with decent straight-line stability on the highway. Unloaded, the ride is firm and can jiggle over sharp bumps, but it settles down nicely with a few hundred pounds in the bed. AT4 and AT4X bring off-road tuning, underbody protection, and all-terrain tires for rough sites and rutted trails. Brakes feel strong and reassuring, important when you’ve got several tons pushing from behind.

Fuel Stops and Real-World Range

Heavy-duty trucks aren’t EPA-rated for fuel economy, so plan on low-teens mpg from the gas V8 and mid-teens from the diesel when unladen. Add a big trailer and the gas can dip into the single digits, while the diesel typically holds to the low teens depending on weight and terrain. With a 36-gallon tank, range can stretch to roughly 400–600 miles, making long hauls less stop-and-go. The diesel’s exhaust brake also helps reduce brake wear and driver stress on mountain routes.

Screens, Smarts, and Safety Nets

The infotainment suite is modern and straightforward, with the 13.4-inch display offering Google built-in, plus wireless Apple CarPlay and Android Auto. A head-up display up to 15 inches is available, and trailering tech includes bed-view, surround-view, and transparent trailer camera modes. Safety features cover forward automatic emergency braking, lane-keeping assistance, blind-zone alerts (including trailer coverage), and adaptive cruise control. On higher trims, available Super Cruise adds hands-free driving on mapped highways and even works while towing.

Lineup and Who It’s For

The Sierra 2500HD range is wide, spanning 2WD or 4WD, Regular, Double, and Crew cabs, and trims from Pro and SLE to SLT, AT4, AT4X, Denali, and Denali Ultimate. Most models use the 401-hp gas V8, while the 470-hp diesel headlines in premium configurations like Denali Ultimate for serious towing and long-distance work. Contractors, ranchers, and RV owners will appreciate the capability and tech, while Denali flavors cater to those who want luxury without giving up muscle. If the job involves big trailers or heavy payloads, this is the sweet spot; if not, a half-ton may be the smarter everyday tool.

Costs and Consumption
Price 46,300 - 93,600 $
FuelEconomy City -
FuelEconomy Hwy -
Electric Range -
Battery Capacity -
Fuel tank capacity 36 gal

Dimensions and Body
Body Type Pickup
Seats 3 - 6
Doors -
Curb weight -
Trunk Volume -
Length 236.3 - 266.77 in.
Width 81.75 - 81.85 in.
Height 79 - 82 in.

Engine and Performance
Engine Type Gasoline,
Transmission Automatic
Drive Type All Wheel, Rear Wheel
Power HP 401 - 470 HP
Torque 464 - 975 lb-ft
Number of Cylinders -
Engine Displacement -
Gears -

General
Model Year 2,025
Brand GMC

How much does the GMC Sierra 2500HD cost?

Base pricing begins at 46,300 $.

What drivetrain options does the GMC Sierra 2500HD offer?

How powerful is the GMC Sierra 2500HD?

What are the GMC Sierra 2500HD's length, width, and height?

DriveDuel uses data analysis and artificial intelligence to evaluate vehicle data and create content. Content is regularly reviewed and improved. Prices shown are manufacturer suggested retail prices (MSRP). Taxes, registration fees and dealer charges are not included.