Product review (4 stars): Works great
Worked fine and from what I could tell of part numbers molded into this, it appears to be OEM or exact clone.  Could not tell from packaging whether this was OEM.  Install was reasonable though I did need to rotate it (there is a pointer/mark molded to the top of the gasket) so that the fill elbow lines up without twisting the gasket.  Also, my family loved how this thing smelled like Easter candy.  Seriously.