Cummins/Onan W3M-19 — Spark Plug Replacement

For the Cummins/Onan W3M-19.

Applies to: Cummins Onan W3M 19

Procedure

1. When replacements are made, the new spark plugs should be of the same make and model number to insure good results
2. Adjust the gaps to 0.030 in

Source: manual:902-TM5-5404 Onan W3M-19 (W2C) Genset Maintenance & Parts manual.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.