2026 GMC Sierra 4WD AT4X with Sport Mode
TruckDieselUp to 19 MPG combined
We don't publish an MSRP for this vehicle — no free public source carries one, and we would rather show nothing than a number we made up. The price calculator works from whatever figure a dealer quotes you.
Configurations (1)
Named by powertrain rather than by trim level (EX-L, Limited…). EPA publishes the configuration, not the marketing name.
| Configuration | Fuel | Drive | Economy | Annual fuel | |
|---|---|---|---|---|---|
| 3L 6-cyl Diesel Automatic 4WD | Diesel | 4WD | 19 MPG (19/20) | $4,200 | Price it → |
Fuel economy from the U.S. EPA (fueleconomy.gov). Location data from SimpleMaps (CC BY 4.0).