Two Powerhouses to Choose From
When it comes to what’s under the hood, the 2026 Silverado 2500 doesn't mess around. I was incredibly impressed with the powertrain options because they cater to exactly what truck owners need. The standard 6.6L V8 gas engine feels strong and responsive, providing that classic, rumbling power that gets the job done without breaking a sweat.
For those who need to take things to the next level, the available 6.6L Duramax® Turbo-Diesel V8 is an absolute monster—in the best way possible. I could feel the immense torque the second I touched the pedal. It’s the kind of power that makes towing heavy equipment or a large trailer feel effortless and stable. Paired with the Allison® 10-speed automatic transmission, the shifting is so smooth you barely notice it, allowing the engine to always be in its sweet spot for power and efficiency.
- Standard 6.6L V8 Gas Engine: Delivers robust horsepower and torque for everyday hauling and towing.
- Available 6.6L Duramax® Turbo-Diesel V8: Offers class-leading torque for the most demanding jobs, providing maximum towing confidence.
- Allison® 10-Speed Automatic Transmission: Ensures smooth power delivery and optimizes fuel efficiency.