Product review (5 stars): Original Whirlpool coupling assembly #285753
Don't buy Whirlpool's new coupler Part #285753A with the steel insert!

Use this coupler and not the newer version Part # 285753A.  This latest version coupler has steel inserts imbedded in its 2 plastic sections, the idea
being to make it more reliable. I'm afraid this hasn't been the case in practice, so
avoid this one.

I have two reasons for this. First, they are so tight and hard to drive onto the gearcase
and motor shafts, it's hard to install one without damaging the shafts. And because they
are so tight, removal when they do break can also be very difficult.

Secondly, repairmen have started to see them stripping/rounding off the drive flats on motor
shafts, ruining motors - and that's unacceptable! The idea behind any drive 'weak link'
- belt, coupler, etc - is to slip or sacrificially fail when something goes horribly wrong,
to keep from ruining something more major and expensive.

Having to replace an expensive main drive motor due to a $10 drive coupler failure
tells us there's a major problem with this new coupler design with the metal insert.  Continue to use Part #285753 which Amazon sells for a few cents more.