Caterpillar 3406 b c mechanical with fass

Why would you want to rely on an electric add on for a work truck, you won’t be able to source parts or replacements on the road.

If your stock pump is working correctly then you should have no issues especially if it is maintaining pressure.

 

From what I understand Fass is very effective on mechanical engines. Don't believe it is intended to replace your fuel pump though, it's just to enhance it.

A buddy of mine has one on a Cat BXS and I can tell you fist hand that it has failed and left him stranded on top of the Kosciuszko Bridge in NYC. We got it home and assembled a fuel line to bypass the Fass to pinpoint the problem. It was a some electric motor on the Fass. In case it happened again he carries the bypass hose on the truck and it's a good thing because the same thing happened some time later but, he saved a tow bill by installing the bypass hose we made.

 

I've thought about putting one on my e model cat but that sort of situation is what I'm afraid of.