I have had an Onan and the Powertech with the Kubota and now the Powertech with the Cat. I really do not have a preference on which engine is in the Powertech but I did have a bit of trouble with the Onan. But all was under warranty and after replacing the entire generator it served me well for 4 more years.
I have not develope an informative opinion on the Powertech.
Wick
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