This crankshaft main bearings guide set is compatible with vehicles equipped with N52, N54, and N55 3.0L engines.It includes one set of main bearings and installation guides.Fits the following engine types: - N52B25 2.5L L6 (2497cc) naturally aspirated - N51, N52, N53 3.0L L6 (2996cc) naturally aspirated - N54, N55 3.0L L6 (2979cc) turbocharged Compatible with these models and production years: 125i (E82/E88, 2006–2013, N52) 128i (E82/E88, 2006–2013, N51/N52) 130i (E81/E87, 2005–2011, N52) 135i / M135i (E82/E88/F20/F21, 2007–2016, N54/N55) 1 Series M Coupe (E82, 2009–2012, N54T) M235i (F22/F23, 2012–2016, N55) 323i (E90–E93, 2005–2011, N52) 325i (E90–E93, 2005–2012, N52/N53) 328i (E90–E93, 2005–2012, N51/N52) 330i (E90–E93, 2005–2012, N52/N53) 335i (E90–E93/F30/F31, 2007–2016, N54/N55) 435i (F32–F36, 2013–2017, N55) 523i (E60/E61, 2004–2010, N52/N53) 525i (E60/E61, 2005–2010, N52/N53) 528i (E60/E61, 2005–2010, N52/N53) 530i (E60/E61, 2005–2010, N52/N53) 535i (E60/E61/F10/F11, 2006–2017, N54/N55) 535i GT (F07, 2009–2017, N55) 630i (E63/E64, 2005–2010, N52/N53) 640i (F06/F12/F13, 2011–2018, N55) 730i/730Li (E65/E66/F01/F02, 2004–2014, N52) 740i/740Li (F01/F02, 2007–2015, N55) X1 25i/28i/35i (E84, 2008–2015, N52/N55) X3 2.5si/3.0si (E83, 2006–2010, N52) X3 28i xDrive/35i xDrive (F25, 2009–2017, N52/N55) X4 35i xDrive/M40i xDrive (F26, 2013–2018, N55) X5 3.0si (E70, 2006–2010, N52) X5 35i xDrive/40i xDrive (E70, 2009–2013, N55) X5 35i xDrive (F15, 2012–2017, N55) X6 35i xDrive/40i xDrive (E71/F16, 2007–2018, N55) Z4 2.5si/3.0si (E85/E86, 2005–2008, N52) Z4 30i (E89, 2008–2016, N52) Z4 35i/35is (E89, 2009–2016, N54/N54T)