So I posted a couple of years ago on a part number for a fuel pump for this motor. I never did get one as the surging comes and goes. Well I went out last Friday and it started doing it again. I got a part number of 5007420 from brown. I noticed this is a no warning (oil) pump. Is there a part number for a pump or rebuild kit for one that has the low oil warning alarm? Could this be something else. It only surges while getting on plane, other than that it is fine. What do you guys think?