Contents inside this Modal are only authorable inside of this page.

The Next Generation GMC Sierra Denali’s new powertrains are ready to take on your performance and power needs:

  • New 5.3L V8 with Dynamic Fuel Management paired with an 8-speed automatic transmission serves up 355 horsepower and 383 lb-ft of torque
  • New available 6.2L V8 with Dynamic Fuel Management paired with an all-new 10-speed automatic transmission provides an impressive 420 horsepower and 460 lb-ft of torque
  • New available 3.0L Duramax Turbo Diesel inline 6-cylinder paired with an all-new 10-speed automatic transmission (late availability)
  • All-new Dynamic Fuel Management system  enables the engine to operate in 17 different patterns between 2 and 8 cylinders, depending on demand, to optimize power delivery and efficiency
  • All-new 10-speed transmission has more gears that mean more ratios, which gives Sierra Denali refined performance and outstanding shift quality