Cummins Onan

About Cummins Onan

This is the official online store for Cummins Onan generator maintenance parts and manuals. It is operated by Cummins Onan. Their office is centrally located in Elkhart, Indiana.

Cummins Onan - Performance You Rely On
Over 85 Years of Quality
Begun 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. During our history, the Onan branded product lines have expanded, while still being known as solid, innovative and hard working.

World Leader in Power Generation
Today Cummins 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.

Cummins Onan branded products are used in recreational vehicle, marine, commercial mobile, residential standby and portable applications. Cummins Power Generation branded products include temporary or permanent pre-integrated Power Command power systems and related accessories. Power system products include diesel and gas generator sets, automatic transfer switches and paralleling switchgear used in commercial and industrial applications for emergency backup or as the primary power source. Cummins Power Generation also provides services ranging from system design, project management, financing, and operation and maintenance contracts to development of turnkey power plants.

Largest Customer Support Network
Cummins Onan generators and engines are supported by the largest and best-trained worldwide certified distributor/dealer network in the industry. That means that when you need help, a Cummins Onan distributor/dealer is nearby. This extensive network makes it easier to get genuine Cummins Onan parts, quality service, and expert installation assistance when and where you need them. Our extensive training and certification process demonstrates our strong commitment to exceptional product service and support. Many distributors/dealers also support Cummins engines and products.

Learn More
To learn more about our company and products, we invite you to visit our corporate site,, and the Cummins Power Generation site at An overview of all Cummins Power Generation related businesses can be found at

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