This component ensures a tight seal and retains oil in the system. For most vehicles, it's usually recommended to change the cap every time you change the oil filter. The material and design are to meet the Part Number quality to long service life. It's a good choice for the direct replacement of your parts. Part Number : 11427789323, 11-42-7-789-323 Fitment:for X5 3.0L L6 2006-2013 for 335d 3.0L L6 2009-2011 Please Note: Please this part is suitable for your vehicle before purchasing. This is non-Part Number product, accessory ONLY! Colour:As Shown Material:ABS+Metal Package Contents: 1 Pcs x Engine Oil Filter Cap Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.