Product review (5 stars): Tight fit
I replaced 2252130 motor with the 2188860 motor in a Kitchen-Aid KSCS23FTBL01 Refrigerator.  It worked, however it should be noted the new unit (2188860) is about 3/8" thicker and requires 4 shims (or spacers) and longer screws to enable proper mounting on the holding bracket.  (The spacers and longer screws are not included with the unit.)

It's a tight fit but works fine..