Thanks for the note, Tom. I thought I should add some info about the actual impeller specs for the pump.
Interestingly enough, Sherwood shows 3 different pump specs for the 427, and I suspect most all of us out there in Commanderland have the 11095G like I showed in the photos. However, there apparently are some different pumps out there, and people placing orders for replacements need to be aware of this. In the end, upon checking with the tech guys at Sherwood, the same impeller may actually work in all of them, but I sure would NOT assume that, especially since different numbers appear on their literature.
One way to be sure is to pull the pump and look at the ID number, but it's sure a lot easier to just pop in the impeller if you know what one is specified.
Of interest, I see the same 11095G Sherwood is also listed as a replacement pump for the 283F and 327F
For your reference files:
regards, Paul
FXA 38 3004 R
Original 427 power