Cummins Onan

Identify Your Generator Model

Identifying Your Commercial Generator

Knowing the model number of your Cummins Onan generator set can be extremely helpful in terms of saving you time. When contacting a Cummins Onan Authorized Commercial Vehicle Service and Parts Dealer for service, operator manuals, maintenance or parts questions, always be prepared to refer to the complete model, specification and serial number. With this information, your Dealer or Distributor can help you more completely and quickly.

The following steps should help you identify your generator set:

  1. Can you read the information on the nameplate?
    The model and specification (or spec) of the set are indicated on the nameplate. The spec is the letter at the very end of the model information. Depending on the age of your set, the spec may or may not be clearly identified for you. Here is an example of a nameplate for a model KY spec K:
  2. If you can't find or read the nameplate, can you find a serial number stamped on the generator set?
    Call the Cummins Onan Customer Response Center with the serial number at 1-800-888-6626. Press "3" when prompted by the recording. They will help you identify the model and spec letter you need to order parts and manuals. If you cannot find the serial number on your set, they can help you determine where to look for it.
  3. If none of the above helps you identify your Cummins Onan generator set, please contact a Cummins Onan distributor or dealer.
    Without nameplate information or a serial number, you may need to have a Cummins Onan dealer or distributor in your area look at the set to identify it. To find the nearest location, use the Cummins Onan Dealer Locator or call 1-800-888-6626 and press "1" when prompted by the recording.