Product review (5 stars): Perfect fit.
Perfect fit.  This is actually the second time I replaced this.  The first replacement was not an LG OEM part and did not last.  This one fits like a glove and no longer requires the use of a little plastic shroud that the old one used.

There are youtube videos to show how to replace this part.  The repair is not for the faint of heart, as disassembling a machine you paid over $1000 for can seem scary to some, but trust me, it is exactly as the videos show, no surprises.  I am not sure how small appliance repairmen make a living in the age of the internet.