Outten Chevrolet of Allentown
2026 Silverado 2500HD Specs and Dimensions PA
Measure the space your truck and passengers need.
The right Silverado 2500HD configuration has to fit the driveway, the passengers and the cargo. Use measurements for the exact cab and bed you are considering. A Crew Cab Standard Bed number should not be used to plan parking for a Long Bed truck.
Outten Chevrolet of Allentown can help you narrow the physical choices before a test drive. For Bethlehem and Easton shoppers with a garage or shared driveway, measure usable space with the door closed and account for walking room around the vehicle.
Quick answers
- The gas and diesel engines are both 6.6L V8s with a 10-speed automatic.
- Regular Cab uses a Long Bed; Double and Crew Cab offer Standard or Long Bed layouts.
- The LT gas Crew Cab 4WD Standard Bed example below is 250.0 inches long.
- Body width, mirror width and turning room are different measurements.
Engine Specifications
| Engine | Horsepower | Torque | Transmission |
|---|---|---|---|
| 6.6L gasoline V8 | 401 hp | 464 lb-ft | Allison 10-speed automatic |
| Available 6.6L Duramax turbo-diesel V8 | 470 hp | 975 lb-ft | Allison 10-speed automatic |
Power figures describe the engine, while load ratings describe a configured vehicle. A bed full of equipment in Emmaus or a passenger-filled trip from Nazareth changes the weight carried by the truck regardless of its engine output.
Exterior Dimensions and Cab Choices
| Measurement | LT Crew Cab 4WD Standard Bed, gas |
|---|---|
| Overall length | 250.0 in. |
| Body width, excluding mirrors | 81.9 in. |
| Height | 79.8 in. |
| Wheelbase | 159.0 in. |
| Bed length | 82.3 in. |
| Turning circle | 52.7 ft. |
These figures apply to the identified configuration. Add clearance for mirrors, the garage opening, overhead equipment and doors opening beside a wall. Measure the space the truck can actually use, not just the building’s nominal dimensions. Accessory steps, a rack or other fitted equipment also need a physical clearance check.
Regular, Double and Crew Cab
Regular Cab is the front-row layout paired with a Long Bed. Double Cab provides a second row; Crew Cab is the larger passenger-cabin choice. Double and Crew Cab each offer Standard and Long Bed configurations. Choose the cabin by who rides with you, then choose the bed by the cargo that must fit with the tailgate secured.

Interior Dimensions and Seating
| Cab measurement | Crew Cab |
|---|---|
| Front headroom | 43.03 in. |
| Front legroom | 44.53 in. |
| Front shoulder room | 66.02 in. |
| Rear legroom, LT example | 43.4 in. |
| Rear headroom, LT example | 40.1 in. |
The LT example with a front bench seats six. Seat and console choices affect the layout, so inspect the actual truck rather than assuming every Crew Cab has the same seating arrangement. A tall rear passenger should sit behind the person who normally drives. Try getting into the rear row with a bag, and check whether your normal gear can be secured without taking up a passenger position.
Bed Space and Cargo Planning
The Standard Bed example measures 82.3 inches in length. Plan around the item you carry, the space occupied by a toolbox or hitch, and how the load will be restrained. A closed tailgate and secure load are more useful planning goals than fitting an object diagonally for a photograph. Keep passenger and cargo weight in the payload calculation even when there is still open bed space.
Weight, Capacities and Wheels
| Item | LT gas Crew Cab 4WD Standard Bed example |
|---|---|
| Published payload | 3,426 lbs. |
| Fuel tank | 36.0 gallons |
The truck’s own certification and tire/loading labels control the vehicle you buy. Optional equipment changes weight, and the published example is not a substitute for those labels. Wheel diameter is also part of Chevrolet’s towing configuration tables, so a wheel choice should be reviewed with trailering needs. Use the towing page for the load calculation.
Key Features and Cabin Equipment
LT and higher trims have the larger center touchscreen and driver display. Check the practical details alongside the dimensions: whether your hand reaches the controls comfortably, where your phone sits, and how much room the center console or front bench gives the passengers. The trim guide explains the equipment choices without treating them as changes to the truck’s physical rating.
Warranty Coverage
| Coverage | Term |
|---|---|
| Bumper-to-Bumper Limited Warranty | 3 years/36,000 miles |
| Gas powertrain limited warranty | 5 years/60,000 miles |
| Duramax powertrain limited warranty | 5 years/100,000 miles |
Whichever comes first applies to each term. Coverage concerns defects in covered components and is subject to exclusions. Routine care belongs in the maintenance and service plan.
Specifications in Practice
For Whitehall and Slatington buyers, check the place where the truck spends the night as well as the places it visits. A trip to Coca-Cola Park or the PPL Center can involve a different parking arrangement from a home driveway. Check the posted clearance for the specific parking facility and use an appropriate space; a nominal truck height is not a guarantee of garage access.
Silverado 2500HD Specifications FAQs
Does 81.9 inches include the mirrors?
No. The 81.9-inch figure in this configuration table is body width without mirrors. Measure the mirror position you use when checking a narrow opening.
Why does turning circle matter if the truck fits my driveway?
The truck must also turn into that space. A suitable parking rectangle can still be difficult to reach when a fence, wall or another vehicle restricts the approach.
Can I use Crew Cab rear-seat figures for a Double Cab?
No. Compare the cab you intend to buy and have the rear passengers sit in that truck. These tables label the Crew Cab measurements explicitly.
Is payload the same as bed volume?
No. Payload is a weight limit that includes occupants and carried loads. Bed size describes physical space. A compact load can reach a weight limit before the bed looks full.
How should I measure garage height?
Measure the lowest part of the opening and the path inside, accounting for overhead hardware. Then measure the actual truck with its fitted accessories and allow clearance.
Fuel Economy and Trip Planning
Plan fuel stops around the route, load and your own consumption records. The 36.0-gallon tank in the LT gas Crew Cab example describes capacity, not a promised driving range. Weather, speed and trailer use affect how far that fuel will take you.
Safety Features
| Feature | Practical role |
|---|---|
| Automatic Emergency Braking | Helps respond to certain detected collision risks |
| Forward Collision Alert | Warns of certain detected collision risks |
Remain attentive and follow the operating limitations in the owner information. Driver assistance does not establish a safe following distance for every condition.
For the LT gas Crew Cab 4WD Standard Bed example, gross vehicle weight rating is 10,450 lbs. and ground clearance is 10.1 in. The Silverado HD bed lineup offers up to 83.5 cu. ft. of cargo volume; this maximum is separate from the Standard Bed length shown above.
Across Silverado 2500HD configurations, unloaded curb weight ranges from 6,266 to 8,408 lbs. The range spans different trucks and must not be combined with the LT example’s GVWR to calculate payload.
Explore the Silverado 2500HD
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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.