The Cummins Onan 4.0KYFA-6747 is a 4kW gasoline electric start microquiet generator designed for RV and marine applications. With a single phase system and a rated output of 3,100 - 4,000 watts, this generator provides reliable power for various essential systems. Backed by the reputable brand Cummins, this model offers efficient and dependable performance, making it a valuable component for recreational vehicles and boats.