Mines 06F 127 025 H which means its the newer revision the same as you would get from the dealers
IIRC you can't get a spare sensor you have to buy the complete unit
I think i read the extra parts they are talking about are in relation to how the fuel pipe fit to the bottom of the pump
as this was changed slightly,(remember something about banjo bolts) but don't quote me on that
HTH
EDIT: just checked ETKA and there is a "K" revision