What is this on my frame? 95 FLD 120

It's a head scratch-er to me. I wonder if the front bottle is some kind of oil seperator driven by air and the rear bottle has to do with power steering in some way.

It's a guess. I don't recall having those on the frame of the one I had.

In the old days a old trucker once told me to follow the hoses. Where they go to and from. They usually went to something else.

 

That looks like an oil centrifuge. But if that's a Cummins 855 big cam is guess it is a fuel air seperator system. Like FASS. That truck may have been to Pittsburgh power at one time.

 

Haven’t a clue what the front one is, but the rear one is bulk either.

 

Dare I say go ahead and unbolt them? Do you think she runs well without showing a loss due to those two not hooked to anything? It would be defensive in act to prevent tinpot DOT from writing you up.

 

The big cam threw me off, I had a similar FLD120 as in my avatar, just having a hard time recalling if I had anything that far up the frame next to the Detriot 60 that was in mine. Frankly all I worried about on that side is fuel filters, steer and associated and so on.

If they are not attached by hose to do anything, unbolt them from the frame saving the original bolts to fill the holes left behind maybe.

 

LH is a bypassed fuel water separator that looks like it may have been heated as well. Looks similar to some Racor models I have seen in the past.

The RH is a ether injector.