PLEASE NOTE! This part will only work with the following models:
XDT11, XDT11Z, XDT11R
It will NOT work with other models! 
Do not buy this if your impact is a different model!

Armature with Magnet and Brushes
New part, pulled from brand new impact drivers

This part is compatible with the following machines:
Makita
XDT11
XDT11R
XDT11Z