I ordered this because the thread on the gear tension screw had become stripped and wouldn't hold enough pressure to grip the filament.
Replacing this part really showed off how well designed the entire extruder assembly is in regards to user repairs and replacements, all parts were easily accessible and everything was very easy to take apart/ put back together properly.
In the end I needed to replace the whole extruder assembly anyway (unrelated issue) but that was also a very simple process and im not going to complain about having spare parts waiting to go.