Onan residential and marine generators manufactured by Cummins Power Generation are covered by a base standard warranty of five years or 2,000 hours, whichever comes first. The warranty covers any failures of the product under normal use and service that result from a defect in material or factory workmanship.
Warranties on Onan generators vary by generator type, age, class and usage. Commercial generator warranties range from 12 to 24 months, or a set amount of operating hours. Warranty coverage for RV generators have a duration of three years from warranty start date or 2,000 hours, whichever occurs first.
Cummins also offers an extended warranty program that can be purchased at the time of generator purchase, or as late as one year beyond the expiration of the standard base warranty.