2025 GMC Sierra 2500 HD Specs and Features

Meet the Refined and Brawny 2025 GMC Sierra 2500 HD in Ardmore, OK

The 2025 GMC Sierra 2500 HD isn’t just a truck – it’s a statement. Whether you’re tackling a rugged job site, blazing through off-road trails, or just cruising through town like a boss, this heavy-duty powerhouse has the chops to handle it all. Built to tow, haul, and dominate, the Sierra 2500 HD has a no-nonsense attitude on the outside and a surprisingly cushy interior that could rival your living room. It’s tough when it needs to be and luxurious when you want it to be – a true double threat.

And for 2025? GMC turned the dial up with an expanded lineup of trims. If you had your eye on a 2024 GMC Sierra 1500, you could get improved towing and hauling, as well as all the amenities, with the latest Sierra 2500 HD. With seven trim levels ranging from the no-frills Pro to the downright decadent Denali Ultimate, there’s a Sierra for everyone. Whether you’re a workhorse enthusiast or a luxury aficionado, you’ll find your match.

• Pro: All business, no fuss.
• SLE: Adds a touch of comfort and convenience.
• SLT: A versatile mix of ruggedness and refinement.
• AT4: Your go-anywhere, off-road adventurer.
• Denali: Think "boardroom on wheels."
• AT4X: Off-road thrills with high-end style.
• Denali Ultimate: GMC’s crown jewel – because why stop at “Denali” when you can climb to the summit with “Ultimate”?

Step Inside: Comfort Meets Craftsmanship

Inside the Sierra 2500 HD, you’ll find a cavernous interior that seats anywhere from three to six passengers, depending on your cab choice. Got a crew? Opt for the Double Cab or Crew Cab, which offers two rows of seating. Rolling solo or just need the essentials? The Regular Cab has you covered with a single-row bench.

But this isn’t your grandpa’s pickup. Higher trims elevate the cabin experience with leather seats, heated and ventilated front seating, and a 10-way power-adjustable driver’s seat that feels more like a throne. Add in perks like a heated steering wheel and dual-zone climate control, and you’ll wonder if you’re driving a truck or a luxury SUV.

Bringing the family along for the ride? The Double and Crew Cab models come equipped with full LATCH systems for rear outboard seats and a tether anchor for the middle seat, making it as family-friendly as it is work-ready.

Rugged Exterior, Refined Everywhere Else

From the trail to the tailgate party, the Sierra 2500 HD knows how to make an impression. Each trim brings its own flair:

• The SLE and SLT trims offer sleek 20-inch machined aluminum wheels, LED projector headlights, and those oh-so-handy trailering mirrors for extra visibility.
• The AT4 and AT4X trims are off-road icons with glossy black wheels, BFGoodrich tires, and a branded spray-in bedliner to show they mean business. Don’t forget the power-retractable assist steps – because climbing into your truck shouldn’t feel like scaling a mountain.
• The Denali and Denali Ultimate trims turn up the sophistication with polished wheels, chrome accents, and the Denali Ultimate’s signature Vader Chrome grille. It’s the kind of detail that says, “I work hard, but I look even better doing it.”

When it comes to bed options, you can choose between a 6-foot-10-inch standard bed or a whopping 8-foot-2-inch long bed for those supersized loads. Plus, GMC offers features like in-bed lighting, extra tie-downs, and even a 120-volt power outlet to keep your tools (or your morning coffee machine) running smoothly.

And let’s talk about the showstopper: the MultiPro tailgate. With six configurations, it’s the Swiss Army knife of tailgates. Need steps? Done. A workstation? No problem. A tailgate that opens with a nudge? Easy. It’s the kind of innovation that makes you wonder how you ever managed without it.

Color choices include:

• Titanium Rush Metallic
• Volcanic Red Tintcoat
• Onyx Black
• Sterling Metallic
• White Frost Tricoat

2025 GMC Sierra 2500 HD Power and Performance

When it comes to getting the job done – or just showing off some serious truck muscle – the 2025 GMC Sierra 2500 HD delivers in spades. With two powerhouse engine options under the hood, this truck is ready to tackle anything from towing and hauling to conquering the trails.

For starters, the base engine is a no-nonsense 6.6-liter V8 that cranks out an impressive 401 horsepower and 464 lb-ft of torque. It's ideal for those who appreciate a robust workhorse that gets the job done without breaking a sweat. But if you're the type who hears "enough power" and thinks, "I can do better," you’ll want to upgrade to the Duramax Diesel V8.

This 6.6-liter diesel beast doesn’t just talk the talk – it roars with 470 horsepower and a staggering 975 lb-ft of torque. It's the engine equivalent of a heavyweight champion, ready to dominate anything you throw its way. With the diesel option, the Sierra 2500 HD boasts a towing capacity of up to 22,070 pounds, meaning it can easily haul boats, campers, or a trailer full of weekend toys. And if you need even more muscle, its big sibling, the Sierra 3500 HD, steps up with a jaw-dropping towing capacity of 36,000 pounds – perfect for those who believe too much is just enough.

Not to be outdone, the Sierra 2500 HD also flexes a payload capacity ranging from 1,736 to 3,975 pounds, depending on your chosen configuration. So whether you’re hauling work equipment or packing up for an epic adventure, you’ve got plenty of room to load it all.

Adventure-Ready AT4 and AT4X Trims

If your idea of a perfect day involves leaving the pavement far behind, the Sierra 2500 HD’s AT4 and AT4X trims have your name written all over them. These off-road warriors come with features that make trail-blazing a breeze – and look darn good doing it.

First, there’s the 1.5-inch suspension lift, giving you that extra clearance to glide over rocks, roots, and whatever Mother Nature throws in your way. Then there are the Multimatic™ DSSV dampers, designed to deliver a smooth ride even when the terrain is anything but smooth.

The 35-inch Goodyear® Territory MT tires offer unbeatable grip on mud, snow, gravel, and everything in between. Paired with Rancho® shocks, these tires make sure the Sierra stays comfortable and steady, no matter how rough the trail gets.

Find Your 2025 GMC Sierra 2500 HD at Jeremy Hodge Chevy GMC

Whether you’re hauling lumber, towing a camper, or just turning heads in the parking lot, the 2025 GMC Sierra 2500 HD is ready to impress. Swing by Jeremy Hodge Chevy GMC in Ardmore, OK, take a test drive, and see for yourself why this truck is redefining what it means to go big. Your Sierra adventure starts here!