Onan

Established by D.W. (David) Onan in 1920, Onan has been a leader and pioneer in power generation equipment for more than 80 years and engines for 50 years. A lot of years have passed and a lot has changed since the first Onan generator sets entered the market - the products, technology, marketplace and of course, the company.

In 1986, Onan Corporation became a fully owned subsidiary of the Cummins Engine Company (now Cummins Inc.), the world's largest designer and manufacturer of diesel engines ranging from 55 to 2,700 horsepower for on-highway vehicles, industrial equipment, and power generation. Today Onan branded products are built by Cummins Power Generation, a subsidiary of Cummins Inc. and a world leader in the design and manufacture of power generation products and services.