Product review (5 stars): This unit replaced no. 2198202 okay though it is not identical.
This unit was slightly different than my original (which was part no. 2198202).  Otherwise it installed exactly like my original unit and is working fine.  The two wires that fit on the same side can be wired in either position (the position of these tabs is different on the two units).  I did see that there were other cheaper units available from Amazon that looked identical to my original unit.  I just did not want to clean out the fridge to pull the unit out first before ordering.