Product review (5 stars): Easy Fix and OEM Part
OEM part worked perfectly.  For less than 10$ and about an hour of work I fixed my refrigerators issue.  The defroster never came previously causing the the coils to freeze over.  Once this happened my side by side refrigerator began getting much warmer than usual.  Defrosting with a hairdryer made the fridge work normally for a few days, but replacing this part completely fixed the issue.  It's an easy fix.