Product review (5 stars): The ice maker is excellent, but I didn't realize the wire harness was blown too.
The ice maker is excellent, and it was easy to replace.

I want to offer a word of caution, however.  In addition to my old ice maker going bad, it took the thermal fuse on the wire harness out with it when it died.  (That's the black plastic thing in the middle of the red wire.  It protects the system by shutting off the power if the heater - which helps release the ice after it is frozen - gets stuck in the "on" position.)  I didn't check this initially, so I didn't realize I needed a new one.  You can check it with an ohm meter measuring the resistance of the red wire from the plug on one end of the harness to the other:  ~0 ohms is good, and ~infinite ohms is bad.  Thus the new ice maker didn't work when I initially installed it.  It started working once I repaired the wire harness.  The most straightforward way is to purchase the complete wire harness if you need it based on the ohm test and replace it.  You can also replace the thermal fuse directly, but that is not the course of action recommended by the manufacturer.  It is, however, what I did.  It was $1.45 at Electronic Parts Outlet for the 170 degree F, 20 A thermal fuse.  I would not recommend simply bypassing the thermal fuse, as this is an important safety feature of the product.