2026 GMC Sierra 2500 HD Overview

The latest GMC Sierra 2500 HD has everything you need to take on anything the roads of Fairmont can throw your way, but don’t just take our word for it. In our detailed guide, we highlight the key features and capabilities of this pickup truck. We encourage you to read our guide and see what you can expect from the 2026 model before taking it for a test drive at our dealership!

2026 GMC Sierra 2500 HD Trims

Morgantown drivers will be able to choose from seven configurations for the 2026 model year, and here are some of the key features each configuration has to offer:

PRO

• 6.6L V8 gas engine with 10-speed automatic transmission
• Trailering Package, Trailering Mirrors, and Trailer Brake Controller
• Best-in-class HD cargo bed volume
• Wireless Apple CarPlay® and wireless Android Auto™ compatibility

SLE

Includes PRO key standard features, plus: 

• 13.4-inch diagonal center touchscreen and 12.3-inch diagonal digital Driver Information Center
• Traction Select System with Tow/Haul mode
• 17-inch machined aluminum wheels

SLT

Includes SLE key standard features, plus: 

• 10-way power driver and front outboard passenger heated seats with lumbar
• Heated steering wheel
• ProGrade® Trailering System with In-Vehicle Trailering App
• 18-inch machined aluminum wheels with dark grey metallic accents

AT4

Includes SLT key standard features, plus: 

• Exclusive Jet Black interior with Kalahari accents, and heated and ventilated perforated front leather seating surfaces
• Exclusive 20-inch gloss-black aluminum wheels with available BFGoodrich® off-road tires
• Off-Road Suspension Package with twin-tube Rancho shocks and skid plates
• Up to 14 available camera views with HD Surround Vision
• Adaptive Cruise Control with trailering

AT4X

Includes AT4 key standard features, plus: 

• Factory-installed 1.5-inch suspension lift, Multimatic® DSSV dampers, rear electronic-locking differential, larger steel transfer case skid plate, and front aluminum skid plate
• 35-inch Goodyear® Territory MT tires
• 16-way heated and ventilated power front seats with massage feature
• Obsidian Rush interior featuring full-grain leather seating with technical-grain leather accents and authentic Vanta ash wood

Denali

Includes SLT key standard features, plus: 

• 20-inch Ultra-Bright machined aluminum wheels with bright chrome inserts
• Denali-exclusive authentic wood, patterned aluminum trim, and Forge perforated leather seating surfaces
• 12-way heated and ventilated power front seats

Denali Ultimate

Includes Denali key standard features, plus: 

• Duramax 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission
• Signature Vader Chrome grille and exclusive 20-inch Ultra-Bright machined aluminum wheels with gloss-black inserts
• Exclusive Alpine Umber interior featuring full-grain leather seating, authentic Paldao wood, and 16-way power front seats with massage feature
• 12-Speaker Bose Premium Series with Centerpoint surround sound
• Illuminated power assist steps and MultiPro Tailgate Audio System by KICKER

2026 GMC Sierra 2500 HD Engines

There are two engine options for the 2026 Sierra 2500 HD, and either option provides more than enough power for you to confidently traverse the streets of Grafton. Take a look at the capabilities of both engines:

Standard 6.6L V8 Gas Engine

• Up to 401 hp
• Up to 464 lb-ft of torque
• 10-speed automatic transmission

Available 6.6L Duramax Turbo-Diesel V8 Engine

• Up to 470 hp
• Up to 975 lb-ft of torque
• 10-speed automatic transmission

2026 GMC Sierra 2500 HD Towing & Payload Capacities

How much can the GMC Sierra 2500 HD tow? We’ve listened to the maximum towing and payload capacities of the 2026 model below:

• Maximum towing capacity of 22,390 pounds
• Maximum payload capacity of 4,049 pounds

Schedule a test drive of the GMC Sierra 2500 at Dan Cava's GMC to experience its breathtaking power up close!

2026 GMC Sierra 2500 HD Dimensions

Here’s how much room you’ll have inside the GMC Sierra 2500 HD and how much room it takes up on the outside:

Interior

• Head Room (1st/2nd Row): 39.88–43.03 inches/40.12 inches
• Leg Room (1st/2nd Row): 44.53 inches/43.4 inches
• Cargo Volume: 69.5–83.5 cubic feet
• Seating Capacity: 3–6 passengers

Exterior

• Ground Clearance: 10.1–11.6 inches
• Wheelbase: 142–172 inches
• Length: 236.3–266.8 inches
• Height: 79.8–82.68 inches
• Standard Bed: 6 feet 9 inches
• Long Bed: 8 feet

Test-Drive A 2026 GMC Sierra 2500 HD For Sale At Dan Cava's GMC!

Are you ready to see what the GMC Sierra 2500 HD feels like from behind the wheel? If so, visit us in Bridgeport to test-drive any of our available models. When you find a GMC Sierra 2500 HD that you love, be sure to ask us about our new vehicle specials!