Product review (1 stars): Utter Junk- wrong size, weak insert
Rubbish.  Complete cheap junk.
The metal insert is too small by about 0.5mm (just enough for it not to fit).  Simple solution, file off a tiny amount of metal.  That's when I noticed how easy it was to file- the insert appears to be made of cream cheese.  The aluminum insert (not mild steel as the original) gave out on the first turn of the motor.  I had purchased 2 of these so thought perhaps I had filed off just a little too much for the motor shaft to get a solid fit.  So, several attempts later with a very fine file, vernier caliper and patience of a Saint, I had a nice snug fit on the shafts- again, the insert failed instantly.

Buy the actual part from a real provider of OEM parts- I did and the washer is working like it should do, perfectly, first time, 5 minute job to replace the the coupling with the OEM one.  Save your money.