Product review (5 stars): Fits perfectly, works great
This works great and is super easy to install.  There are instructions on the Sub Zero site and plenty of YouTube videos to show you how to do it.  The authorized repair company has a monopoly where I'm at and is a nightmare to work with, so I've started learning to care for my 25 year old Sub Zero myself.  I saved myself a lot of money by putting this in myself.  It's been in for two months now and works great.