GO WITH OEM---CORN IS HARD ON A MACHINE AND YOU WANT THE BEST FOR YOUR DOllAR. SOME AFTERMARKETS ARE lINE-BORED....NOT WHAT IS INTENDED BY MANUFACTURER FOR PROPER THRESHING.
I don't know about pricing differences, but the loewen conaves, line bored or OEM style, are the strongest built concaves on the market, so you need one of these especially for corn. Some people call them stone crushers. They will not bend or bow like the ones from CASEIHC.
