Rear Back ABS wheel speed sensor fit for 04 05 06 07 08 09 10 B-MW X3 E83 Position: rear left driver side and right passenger side; Package: 2pcs (left and right are the same) Interchange part number: ALS441, 34523405907, 34523420331, 0265007622, 0265007855, 5S10563 Durable Construction: Crafted with high-quality materials, our sensors are built to withstand harsh road conditions, ensuring both longevity and reliability in performance. We offer a 2-year-warranty for Ruizure products, please feel free to let us know if you have any questions about the products. rear back ABS Wheel Speed Sensor Left Right fit BMW X3 E83 2004 2005 2006 2007 2008 2009 2010, Driver Passenger Side