Duramax 6.6L Turbo Diesel V8, B20-Diesel compatible

The available Duramax 6.6L Turbo Diesel V8 engine includes the following equipment:

  • B20-Diesel compatible
  • Allison® 1000 6-speed automatic transmission
  • 3.73 gear ratio
  • Exhaust brake
  • Engine block heater
  • Capped fuel fill

Requires available Duramax Plus Package on Crew Cab LTZ and High Country. LTZ and High Country models require 6" rectangular chrome assist steps.