Product review (5 stars): Grommet Replacement for KitchenAid Refrigerator.
I have a kitchenaid refrigerator KBFS25EWMS5 the grommet was bad causing my freezer to frost over.  the drain froze over and I trimmed it back a little to much.  turns out many people are having this problem.  thus  Grommet PN W10309238 is now obsolete and has been replaced with this part W10619951.  this part includes the grommet and drain assembly all into one package.  not to hard to replace but be careful when removing the old drain tube so that you don't crack the drain pan!  you will need a screw driver to push the snapping mechanism back to remove the existing part.  read the directions before installing new part.  works well - no ice or frost problems.