SI number
WARNING: This page is about a different car, the 2016 BMW Z4, 2015 BMW Z4, and 2014 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
01 07 90 (244)
Courtesy of BMW OF NORTH AMERICA, INC.
Consisting of:
1 = 0491574 Frame
NOTE:
(Main frame)
2 = 0491575 Fixture
3 = 0491576 Ring
4 = 0491577 Shell
NOTE:
(Bearing shell) 2 pieces