Missing metallic bits inside spark plug hole?

Snowman

Specialist
May 20, 2018
69
11
0
Ride
BMW 335 -07
Today i started to remove the valve cover to replace my leaking gasket.
However i managed to damage the tool which i used to remove the round things inside the spark plug holes, which caused some damage to the metallic "insulators".
However i cant really manage to find the part number for the parts, does anyone know the partnumber or where i can get them?
It is this part that im looking for -->
pic17.jpg
 

135Pats

Specialist
Nov 17, 2016
70
48
0
MD
PN: 11127575422
 

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