2 Pcs Car Crankcase Vent Valve for BMW 545I 550I 645I 650I 745I 750I Alpina B7 X5 Specification: Diameter: 66mm Material: Plastic - Rubber - Steel Fits: 2004 - 2005 BMW 545I 2006 - 2010 BMW 550I 2004 - 2005 BMW 645CI 2006 - 2010 BMW 650I 2003 - 2005 BMW 7 #bmw