Product review (5 stars): Easy do-it-yourself repair to save hundreds to resolve a warm/frozen fridge compartment.
I was so glad to have this option instead of having a service call or buying a new fridge/freezer.
I was having problems with my food spoiling because the fridge side was too warm.  After discovering how to remove the diffuser, I was able to chill my food again while shopping for replacement parts.  I found this one and ordered it.

The fit was a bit tight, as mentioned in other reviews.  However, the power plugs and screws were perfect, so I just cinched it down and put the cover back on it, and haven't had a problem since.

The old diffuser could probably be rebuilt for next  time, but at such a low cost for a component that gives the fridge a rebirth, it was worth the expense for the low-hassle swap-out.

I think the replacement job took like 20 minutes (apart from taking the time to wash all the fridge shelves that needed cleaned anyway!)