Product review (5 stars): This is the way to go, easy to replace.
I purchased this from Chicago Replacement Parts via Amazon. This tray was an exact match to the one I was replacing. I saw other comments about ones that were white in color, possibly an aftermarket one. This one is the same translucent green/gray coating as the original. If the only thing wrong with your ice-maker is that the coating has come off, replacing the tray portion is the way to go. Removal from the freezer was loosening 2 bolts and removing 1 screw and one electrical connector. Could not be easier. The new part is not threaded, but the old screws will cut new threads into the new one easily. There is a large dab of the silver thermal conductor that goes under the temperature sensor. I used a flat bladed screwdriver to spread it around a bit before mounting it to the tray. You can see in the photos how the coating was just separating from the aluminum. The closeup of the end shows one of the mounting holes with the threads cut and the one over to the right that hasn't had the screw turned into it yet.

Like I said, if all that's wrong with your ice maker is that the coating is separating, then this is the way to go. Spending $80 or $90 for an entire unit is crazy. Hope this information helps.<a data-hook="product-link-linked" class="a-link-normal" href="/Whirlpool-W10190929-Ice-Mold-Refrigerator/dp/B00L4G9YMY/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Whirlpool W10190929 Ice Mold Refrigerator</a>