What other filter can you use for an Onan 140-3116 air filter?

NAPA 9087

Go to Wixfilters website. (Wix filters)

Go to Fram website. (Fram filters)

Go to Pureoil website. (Purolator filters)

Each one has a cross-reference tool in their website.

Apparently, I'm not allowed to give you the fricken links, due to some totally assenine policies that this website has.

Kudos! ~AJ