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Duramax Injectors

Duramax Diesel 6600 engines have used Bosch common rail fuel injection systems since the first Duramax engines were built in 2001. Through the 2010 model year the injectors were solenoid activated and operated at fuel pressures up to 26,000 PSI. Beginning with the 2011 model, current injectors operate at 30,000 PSI and use piezo activation, which is five times faster and allows injection cycles timed in milliseconds. This latest fuel injection development has afforded the Duramax Diesel significantly improved horsepower ratings, fuel economy, and emissions control.