2012 kx250f cases

I’m looking to possibly grab a 2012 kx250f project that has a Grenaded bottom end and needs cases. Does anyone know if the 2012 cases are an oddball year? When looking up the part numbers, the 2011 and 2013-2016 are all the same but 2012 has different part numbers. Everything else in the bottom end (bearings, crank, etc) seem to be the same for all years. Of course, used 2011 or 2013 newer cases are plentiful and nothing for 2012. Any insight would be appreciated