Product review (5 stars): Saved me over $250
Sears came out and explained this is what I needed for my refrigerator that was not cold enough.  They wanted $390 to repair it, with part and labor.  I watched an online video on how to do it myself (even though the video was not of my specific refrigerator), and ordered this part.  It arrived about 4 days later.  When the weekend came, I started the job with a little more confidence than I had previously.  Long story short, with the help of my frig parts diagram (copied from the site with the video), and 1/4" nut driver, it took me 45 minutes to fix it myself.  It now cools as if brand new!