crwdns2934241:0crwdne2934241:0 mayer

crwdns2934249:0crwdne2934249:0:

I can't find this listed as a separate part.  You'll probably have to replace the chassis.  I did find a cheap one of those:  http://www.ecrater.com/p/8128097/922-4689-r-15-imac-flat-panel-chassis-p-n805-3450

crwdns2915684:0crwdne2915684:0:

open