Facts About Generators

Cummins/Onan QSJ5.9G Engine

The Cummins/Onan QSJ5.9G is a 5.9 L naturally aspirated or turbocharged engine rated at 1800 rpm. It powers generator sets from Cummins/Onan, including the C100 N6, C45 N6, C50 N6 and C60 N6.

Engine specifications

Displacement5.9 L
AspirationNaturally aspirated or turbocharged
Rated speed1800 rpm

Generator sets powered by this engine