If after you do your trouble shooting and you confirm you need a new starter for your Onan generator you can use this one.
New Starter Replaces ONAN 191-2231 A029p528 https://amzn.to/3TRToom
For Onan generator models 5500 and 7000
Starter Replaces ONAN 191-2231 , DENSO 228000-8830 , 228000-8831 , 26024344A