Cummins/Onan — THIS PAGE LEFT INTENTIONALLY BLANK
A Cummins/Onan service procedure — check it applies to your exact model before use.
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Procedure
- 1. Engine Serlal Number (ESN)
- 2. Control Parts List (CPL).
Source: manual:LeeBoy-Cummins-B3.9-B5.9-Engine-Manuals.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.