Unplug the refrigerator from the power source.
Unscrew the screw at the top of the refrigerator door. Remove the hinge.
Pull the old door cam out from the area under where the hinge was. Place the new cam in the old cam’s place. Make sure the rounded side of the cam is facing upwards.
Place the hinge back over the door cam. Use the screwdriver to tighten the screw in its place over the hinge.