Product review (5 stars): Easy install, saved the day!
Recently moved into a new house and the side by side fridge door would not have the best seal. The refrigerator door would pop open from the pressure the freezer door created when it was being closed. This led to a few instances of the door being cracked unknowingly while at work. Turns out the part with the ridges was broken off and only the shaft remained in the hole in the door.

Installed this part and the door now seals great. Hardest part of the install, as stated by other reviewers, is removing the old part from the hole if previously broken off.