looking in the drawing of the Ultimaker3 (same feeder) the item number is 1279.
normally you can order any part at an ultimaker reseller, but I'm not sure in this case as the spare parts books of UM2+ and UM3 only mention the complete feeder assembly, but ask your reseller anyway, they can probably order it.
Otherwise it seems like a part you could possibly find in a good hardware store...
did you find one?
I also need one
Link to post
Share on other sites