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_x000D_ Item Type: Wheel Speed Sensor_x000D_ Material: ABS_x000D_ Color: As Pictures Shown_x000D_ OEM: 34523405907, 34523420331_x000D_ Place on the Vehicle: Rear Left/Right_x000D_ Fitment: _x000D_ _x000D_ Fit for X3 (E83) 2.0 d 2003-2007_x000D_ Fit for X3 (E83) 2.0 d 2007-2009_x000D_ Fit for X3 (E83) 2.0 i 2005-2008_x000D_ Fit for X3 (E83) 2.5 i 2004-2006_x000D_ Fit for X3 (E83) 2.5 si 2006-2008_x000D_ Fit for X3 (E83) 2.5 si xDrive 2006-2008_x000D_ Fit for X3 (E83) 3.0 d 2004-2005_x000D_ Fit for X3 (E83) 3.0 d 2005-2008_x000D_ 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._x000D_ If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!