This is a brand new, working part, this buttons fingerprint recognition function is disabled by default as the Touch ID is matched to the logic board; It is similar to the iPhones. This means you can use the power on and off function only rather than the Touch ID.
Unfortunately, at this point in time, there is no way around this and the only option to have the Touch ID working as well is to go to Apple directly but the cost of repair would be very high.

Package including:
1 x 821-01536-A Power Button(without fingerprint recognition function)

Identifying Numbers:
APN: 999-0041
PPN: 821-00919-A 821-01536-A 821-01536-02

Compatible:
-Compatible for Macbook Pro 13.3 " A1989 2018 year
-Compatible for MacBook Pro Retina 13.3" A2159 Mid 2019(EMC:3301)
Mid 2019 for MacBook Pro Retina 13.3" EMC 3301 MUHN2LL/A* "Core i5" 1.4 13" Touch/2019 2 TB 31.4 GHz Core i5 (I5-8257U)
Mid 2019 for MacBook Pro Retina 13.3" EMC 3301 BTO/CTO "Core i7" 1.7 13" Touch/2019 2 TB 31.7 GHz Core i7 (I7-8557U)