2013 Onan gen ? Fuel filter ??

DrewE wrote:
At 100 hours, you probably don't need to do anything.

x2

At 100 hours, you probably don't need to do anything. What you're seeing is most likely the fuel pump, I suspect--typically a metal cylindrical object with the fuel line going in and out and (if you look closely enough) wires to power the pump.

I don’t see anything, except buried in the back corner of the gen cabinet looks like maybe a metal one,, no clue how to get to it or with 100 hrs if I even need to

Can you follow the fuel line back to the gas tank?
I know the older Onan generators have a small filter where the fuel line enters the carburetor.

It’s a Onan 4000 gas

Not enough information. Need model and gas or diesel. Did you check out on the onan/cummins website for information?

I don't know about a 2013 Onan, but when I had a 1996 there was a fuel filter. It was located at about where the fuel line enters the genny enclosure. I bought a new fuel filter, but sold the rig before I installed it.