Features: 1.The wheel speed sensor is a sensor used to measure the speed of a car wheel. 2.High frequency response, output signal voltage amplitude is not affected by the speed. 3.Strong ability to resist electromagnetic interference, having stable performance. 4.Replacing OEM numbers for reference: 34523405907, 34523420331, durable and sturdy, easy to install. 5.Rear left/right wheel speed sensor, important ABS system parts, fits for X3 E83. Specification: Conditon: 100% Brand New Item Type: Wheel Speed Sensor Material: ABS Color: As Pictures Shown OEM: 34523405907, 34523420331 Place on the Vehicle: Rear Left/Right Fitment: Fit for X3 (E83) 2.0 d 2003-2007 Fit for X3 (E83) 2.0 d 2007-2009 Fit for X3 (E83) 2.0 i 2005-2008 Fit for X3 (E83) 2.5 i 2004-2006 Fit for X3 (E83) 2.5 si 2006-2008 Fit for X3 (E83) 2.5 si xDrive 2006-2008 Fit for X3 (E83) 3.0 d 2004-2005 Fit for X3 (E83) 3.0 d 2005-2008 Fit for X3 (E83) 3.0 i xDrive 2004-2006 Note: Please double check the part number of your item, matching information is just for reference. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!