Product review (5 stars): Smaller than original, works fine
I used this for a Whirlpool side-by-side refrigerator. My original part number was 1105523:&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Whirlpool-Part-Number-1105523-Tray-Evaporator/dp/B001HP2OGA/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Whirlpool Part Number 1105523: Tray, Evaporator</a>. This seems to be the current replacement. As other reviewers have said, this is slightly smaller than the original but that doesn't really matter once you get it in there.

In terms of the replacement process, the only way I was able to gain access to the drip pan was to completely remove the water filter housing. Do a YouTube video search for "replace whirlpool water filter housing" and you'll see how this works. Then the old pan is taped down (probably to keep it in place during shipping) so you have to cut the tape off in the front and back too. It's a real pain to get the old pan out. Make sure you plan for plenty of time and frustration. Also, you may as well clean out all the dust and dog hair under the fridge while you're down there (maybe now is a great time to buy that coil brush you've always wanted?).