Understood your point but these quotes(321 and 325 were sent within weeks time (Three days gap in between )
However our main concern is still not answered , Why we are quoting P/n 23907409. You said this is pump body complete . This position 1 and article number as per catlog sent by you is 21000411010 . We need only fluid end as per catalog is Position 1.1 and in english version is pump body .Artikelnummer is something 21000411022.