3 O-ring sealing. Compatible with ForBMW 7 ( For E65, For E66, For E67) 730 d 730 Ld (2002 - 2008). ForBMW For X3 ( For E83) 3.0 d 2.0 d 3.0For sd (2003 - 2008). ForBMW For X5 ( For E70) 3.0 d 3.0For sd xDrive 30 d (2007 - 20139. ).