Feature 1Direct Replacement: Door lock actuator motor is specifically designed for E53 X5 20002006 models, offering a convenient solution for maintaining or upgrading your vehicle's door locking system. 2OE Number: 937856, 937856, 51218402537, 51218402537 are the reference part numbers. Please double check the part number of your item to ensure perfect match. 3Excellent Functionality: The door lock actuator motor effectively controls the automatic locking and unlocking of car doors, providing sensitive using and stable signals for a seamless driving experience. 4Rugged Construction: Constructed from high strength materials, this actuator motor is meticulously processed with a fine finish, ensuring a sturdy structure that is resistant to oxidation, and wear. 5Enhanced Security: With its dependable performance, this motor enhances the security of your vehicle by ensuring consistent and reliable working of the door locks, adding an extra layer of protection and convenience. Item Type: Integrated Door Lock Actuator Motor Material: ABS + Metal Part Number: 937-856, 937856, 51-21-8-402-537, 51218402537 Position: Front Left Fitment: Replacement for E53 X5 2000-2006 Package List 1 x Integrated Door Lock Actuator Motor Note Please double check the part number of your item, matching information is for reference only.