Product review (5 stars): Replacement part works great.
This was an easy fix to our problem.  Our refer was cool, but not cold.  The freezer was very cold, but frosty.  The fan was out, which is how temperature is regulated.  (Unfortunately, this is the second time we've had this issue with our 5 year old whirlpool frig.at least this second time we knew exactly how to proceed.)  The replacement fan was fairly easy to install and did the trick.