Compatible with 2008–2013 128i, 2006 325i, 2006 325xi, 2007–2011 328i, 2012–2013 328i Convertible, 2012–2013 328i Coupe, 2012 328i Wagon, 2009–2012 328i xDrive, 2013 328i xDrive Coupe, 2007–2008 328xi, 2006 330i, 2006 330xi, 2006–2007 525i, 2006–2007 525xi, 2008–2011 528i, 2009–2010 528i xDrive, 2008 528xi, 2006–2007 530i, 2006–2007 530xi, 2007–2010 X3, 2011–2012 X3 xDrive28i, 2007–2008 X5 3.0si, 2009–2010 X5 xDrive30i, 2006–2008 Z4 3.0i, 2006–2008 Z4 Coupe 3.0si, 2006–2008 Z4 Roadster 3.0si, 2009–2011 Z4 sDrive30i.Part number 12310392568 and 12317527681.Aluminum alternator mounting screw set for X3, X5, and Z4 generator applications. This is not an part.All brand mentions are used strictly for compatibility reference.