Upgraded Rubber Control Arm Bushing Compatible with BMW E90 E82 E84 F30 X1 Z4 Models Features： 1、Applicable Model: The suspension control arm bushing is for 3 Series X1 Z4 E90. Please confirm whether it is consistent with the product you want before buying to avoid unnecessary return. 2、OE Number: The part numbers for reference are 31126763719, 31120393540. Please confirm whether it is consistent with the OE you need to avoid wrong buying and other problems. 3、Improved Performance: The control arm bushing improves the performance of the vehicle's suspension system, making the vehicle more stable and smooth during driving. 4、Durable Material: The front control arm bushing is made of durable and reliable material, high strength and wear resistant, can withstand long periods of use and harsh road conditions. 5、Easy Installation: The front axle suspension control arm bushing is simple to install and replace without complex tools and additional costs. Specification： Item Type: Control Arm Bushing Material: Iron OE Number: 31126763719, 31120393540 Applicable Models: Fit for 3 Series Fit for X1 Fit for Z4 Fit for E90 Package List： 1 x Control?Arm?Bushing