31-2040 Mandrel
WARNING: This page is about a different car, the 2011 BMW X6 and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.
0491891 312040 Mandrel MW
NOTE:
(Drift) For fitting the radial shaft seal in the front wheel hubs and on the drive flange for the rear axle differential [Discontinued]
Courtesy of BMW OF NORTH AMERICA, INC.