2026 Silverado 2500 HD · Specs & Dimensions
2026 Chevrolet Silverado 2500HD Specs
Engine output, bed and box dimensions, weights, capacities, and the full size picture, laid out so you can match a configuration to the job before you ever step on the lot.
Gas 401 hp / 464 lb-ft
Duramax 470 hp / 975 lb-ft
Standard or 8-ft Long Bed
Up to 36-gal fuel tank
Spec sheets on a heavy-duty truck only matter once you tie them to a use, so this guide pairs the numbers with what they mean for towing, hauling, and fitting the truck in your shop or garage. Every figure here is for the 2026 Silverado 2500HD; many vary by cab, bed, and drivetrain, and those splits are called out. Buyers from Centerton, Lowell, and Pea Ridge across Northwest Arkansas use this page with our George Nunnally Chevrolet team to spec the right build.
Want the configuration-by-configuration trailering matrix instead of the summary below? That lives on the towing & payload guide. To see how equipment changes by trim, use the trim levels comparison.
Powertrain
Engine & transmission specs
| Spec | 6.6L V8 Gas (standard) | Duramax 6.6L Diesel (available) |
|---|---|---|
| Configuration | V8, OHV, gas | Turbo-diesel V8 |
| Horsepower | 401 hp @ 5,200 rpm | 470 hp |
| Torque | 464 lb-ft @ 4,000 rpm | 975 lb-ft |
| Transmission | 10-speed automatic | Allison 10-speed automatic |
| Available drivetrain | 2WD or 4WD | 2WD or 4WD |
| Available axle ratios | 3.42 / 3.73 | 3.42 / 3.73 |
Capability
Towing, payload & weight ratings
| Rating | Maximum (properly equipped) |
|---|---|
| Conventional towing, gas | up to 16,000 lbs |
| Conventional towing, Duramax + Max Trailering | 20,000 lbs (Crew Cab) |
| Gooseneck / 5th-wheel, Duramax + Max Trailering | 22,050 lbs |
| Max GCWR | 30,000 lbs |
| Max GVWR | up to about 11,900 lbs |
| Payload | up to about 3,700 lbs (3,426 lbs, popular gas Crew Cab) |
Maximums apply to specific, properly equipped configurations and vary by cab, bed, drivetrain, and axle ratio. See the towing guide for the full matrix.
Footprint
Exterior dimensions
| Dimension | Figure (varies by config) |
|---|---|
| Overall length | approx. 231 - 260 in |
| Wheelbase | approx. 142 - 176 in by cab & bed |
| Width (excl. mirrors) | approx. 81.9 in |
| Height | approx. 78 - 81 in |
| Ground clearance | about 9 in (more on ZR2) |
| Seating | up to 6 |
The Durabed
Bed & cargo dimensions
| Spec | Standard Bed | Long Bed |
|---|---|---|
| Bed length | 82.25 in (about 6 ft 10 in) | 98.27 in (8 ft) |
| Cargo volume | approx. 70 cu ft | up to about 83.5 cu ft |
| Construction | High-strength steel Durabed | High-strength steel Durabed |
| Available tailgate | Multi-Flex (6 functions) | Multi-Flex (6 functions) |
Weights & Fuel
Curb weight & capacities
| Spec | Figure |
|---|---|
| Curb weight | from about 6,700 lbs (gas Crew Cab); diesel adds several hundred lbs |
| Fuel tank | 28 - 36 gal by configuration |
| Assembly | Flint, MI and Oshawa, Ontario |
| Basic warranty | 3 yr / 36,000 mi (5 yr / 60,000 mi powertrain) |
Read the Numbers
Which specs matter for your job?
| If you mostly… | Watch this spec |
|---|---|
| Tow heavy trailers | GCWR, axle ratio, Duramax torque |
| Haul tools and material in the bed | Payload, GVWR, bed length |
| Park in a standard garage or shop bay | Overall length, height, wheelbase |
| Drive long highway miles | Fuel tank, diesel range |
From our Bentonville store we help NWA buyers from Centerton to Pea Ridge spec the right truck. Once you know which numbers govern your build, check live inventory to find a matching truck, or estimate a payment.
Next Step
Spec it, then see it
Match these numbers to a truck in stock at our Northwest Arkansas dealership, or get pre-approved first.
Questions
2026 Silverado 2500HD spec FAQs
How long is the 2026 Silverado 2500HD bed?
The Standard Bed measures 82.25 inches (about 6 feet 10 inches) and the Long Bed is 98.27 inches (8 feet). The long bed offers up to about 83.5 cubic feet of cargo volume in the high-strength steel Durabed.
How big is the fuel tank?
Fuel tank capacity ranges from 28 to 36 gallons depending on the configuration, giving the Silverado 2500HD long highway range for Northwest Arkansas drivers, especially with the diesel.
How much does the 2026 Silverado 2500HD weigh?
Curb weight starts around 6,700 pounds for a gas Crew Cab and rises several hundred pounds with the Duramax diesel. Maximum GVWR runs up to about 11,900 pounds depending on configuration.
What are the engine output figures?
The standard 6.6L gas V8 makes 401 horsepower and 464 lb-ft of torque. The available 6.6L Duramax turbo-diesel V8 makes 470 horsepower and 975 lb-ft, paired with an Allison 10-speed automatic.
Will it fit in a standard garage?
Overall length ranges from about 231 inches to over 250 inches and height is roughly 78 to 81 inches, so measure your garage depth and door height first, especially for Crew Cab Long Bed builds.
May not represent actual vehicle. (Options, colors, trim and body style may vary)
The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.