Cummins Onan is a leading manufacturer of reliable power solutions and RV generators, providing consistent electricity for mobile, marine, and commercial applications.
Onan, now a prominent part of the Cummins family, is a highly respected brand in the mobile power industry. They specialize in manufacturing highly reliable generators for recreational vehicles (RVs), marine vessels, and commercial applications. For decades, the Onan name has been synonymous with robust power solutions that ensure users have seamless access to electricity whether they are on the road, on the water, or at a remote job site.
Onan generator sets are engineered for exceptional durability, quiet operation, and fuel efficiency. Their diverse product lineup includes gasoline, diesel, and propane-powered units specifically designed to meet the rigorous demands of mobile operating environments. Features like remote control panels and advanced diagnostics make managing Onan generators straightforward for everyday consumers and professionals alike.
Support for Cummins Onan products is extensive, backed by a global network of authorized dealers and comprehensive warranty programs. Detailed operator and maintenance manuals are provided to assist users in safely operating, troubleshooting, and maintaining their equipment to achieve peak long-term performance.
Latest manuals from manuals+ curated for this brand.
Common questions about manuals, registration, and support for this brand.
The model and serial numbers are located in the gray boxes on the generator's nameplate. You will need these specific numbers when contacting an Onan dealer for parts, service, or product information.
No. Onan generators are not intended for use as life support systems, as they can stop without warning. Redundant power or an alarm system must be used if operation is critical for health or safety.
It is highly recommended to use API performance Class SJ, SH, or SG engine oil. For temperatures consistently above freezing, SAE 30 or 15W-40 is typically preferable, but always consult your operator manual for the correct viscosity grades based on ambient temperature.
Warranty claims, services, and part replacements are processed through the official Cummins Onan authorized dealer and service center network.