Product review (5 stars): Beats buying a new fridge.
The Evap fan in the back of the freezer would stall and squeal each time the compressor came on, and I matched up this fan by the picture and dimensions.  It is sort of a universal fit, but there are different versions for different fridges, so find one that matches the best.  The wiring headers were not in the same location as my old ones, so I had to extend them, but this is to be expected.  It has been a couple months and is still working quietly.  Very happy to have avoided the hassle of a repairman or a new appliance.