Product review (5 stars): OEM Whirlpool - Perfect fit!
This was an exact replacement for my broken ice maker.  I was able to install it without any modifications.  It came with several different styles of power cables but it was easier to use my existing power cable.  Total install time was around 10 minutes.

The ice maker came in a Whirlpool box so I am confident this is an actual OEM product.

Remember to reuse the metal, shut-off arm from your old ice maker or the new ice maker will never turn off.

I had ice within an hour of installing it.