GMC Sierra HD 2026 Review, Specs, Price and Mileage (Brochure)
The 2026 GMC Sierra HD is a powerful and reliable heavy-duty truck built for tough tasks. This blog covers the key specs, features, price, and mileage of the 2026 model. Whether you’re looking for performance or comfort, the Sierra HD offers everything you need for work and play.
Pricing
The price of the 2026 GMC Sierra 2500HD / 3500 HD starts at $49,295 and goes up to $96,395 depending on the trim and options.
| Trim Level | Price |
|---|---|
| Pro | $49,295 |
| SLE | $56,095 |
| SLT | $67,295 |
| AT4 | $74,195 |
| Denali | $77,595 |
| AT4X | $86,295 |
| Denali Ultimate | $96,395 |
What’s New for the GMC Sierra HD 2026
For 2026, the Sierra HD sees only minor updates. GMC swaps out a few paint colors for similar shades and expands the availability of the MultiPro tailgate.
Colour Availability of GMC Sierra HD 2026
The 2026 GMC Sierra HD is available in 14 different colors, offering a variety of choices to suit your style.
- Coastal Dune
- Downpour Metallic
- Onyx Black
- Silver Ice Metallic
- Sterling Metallic
- Tangier Orange
- Summit White
- Woodland Green
- Cardinal Red
Specifications
Exterior Dimensions
| Dimension | Measurement |
|---|---|
| Length | 231.9 in. |
| Overall Width | 81.2 in. |
| Height | 75.5 in. |
| Bed Length | 69.9 in. |
Interior Dimensions
| Dimension | Front Seat | Rear Seat |
|---|---|---|
| Head Room | 43.0 in. | 40.1 in. |
| Leg Room | 44.5 in. | 43.4 in. |
| Shoulder Room | 66.0 in. | 65.2 in. |
Entertainment
| Feature | Specification |
|---|---|
| Infotainment Display Size | 7.0 in. |
| AM/FM Stereo | Standard |
| Total Speakers | 6 |
Steering
| Feature | Specification |
|---|---|
| Steering Wheel Type | Tilt-adjustable |
| Steering System | Electric power steering |
Brake
| Feature | Specification |
|---|---|
| Brake System | Standard |
Wheels and Tires
| Feature | Specification |
|---|---|
| Wheel Type | Painted steel wheels |
| Wheel Size | 17 x 8.0 in. |
| Tire Type | All-season tires |
Engine
| Feature | Specification |
|---|---|
| Base Engine Size | 2.7 L |
| Engine Type | Gas (Inline 4) |
| Max Towing Capacity | 9,400 lbs. |
| Max Payload Capacity | 2,000 lbs. |
Drivetrain
| Feature | Specification |
|---|---|
| Transmission | 8-speed shiftable automatic |
| Drive Type | Rear wheel drive |
Fuel and MPG
| Feature | Specification |
|---|---|
| Fuel Type | Regular unleaded |
| EPA City MPG | 18 MPG |
| EPA Highway MPG | 21 MPG |
| Combined MPG | 19 MPG |
Frequently Asked Questions
What is the price range of the 2026 GMC Sierra HD?
The price of the 2026 GMC Sierra HD starts at $49,295 for the Pro trim and goes up to $96,395 for the Denali Ultimate trim.
What is the fuel efficiency of the 2026 GMC Sierra HD?
The 2026 GMC Sierra HD offers an EPA-rated fuel efficiency of 18 MPG in the city, 21 MPG on the highway, and a combined 19 MPG.
What are the exterior dimensions of the 2026 GMC Sierra HD?
The 2026 GMC Sierra HD has a length of 231.9 inches, width of 81.2 inches, height of 75.5 inches, and a bed length of 69.9 inches.
What type of engine does the 2026 GMC Sierra HD have?
The 2026 GMC Sierra HD is equipped with a 2.7 L inline 4 gas engine.
What kind of wheels and tires does the 2026 GMC Sierra HD use?
The 2026 GMC Sierra HD comes with painted steel wheels, size 17 x 8.0 inches, and all-season tires.
