Product review (5 stars): Bought this because mine kept falling off during wash, ...
Bought this because mine kept falling off during wash, really it is just the little white piece that needed to be replaced but this one has a re-designed piece.  This was a substitute part number I found on sears parts direct.  Fit perfectly, the newer design has 3 tabs holding the arm in place instead of 2.  That's 50% more tabs!  Maybe it will last 50% longer...