Product review (4 stars): subco icemaker tips
5 stars for seneca appliance parts. fast delivery and good instructions included. 4 stars for the product. the ice maker is the only one i have seen for my subzero refrigerator and is inexpensive. the down side is that it lasts  as long as it lasts 3-4 years in my case and then you replace it.

a couple of installation tips. hold the shelf above away from the old unit with bungee cord. loosen but do not remove the 2 screws in the back and lift the unit off the screws. the wiring harness is held in by a tab which can only be accessed after you have removed the white cover on the old unit.fold the tab down toward the connector and it slides out easily. on your model as on mine you need to notch out the rear of the white water well on the right side. look for the cut lines and follow them otherwise the pipe will not fit

take your time, take pictures with your phone, follow the instructions and it is pretty straightforward/