Powerflex USA - BMW E39 5 Series Non-M Rear Lower Arm Rear Bushing - 12 mmFits E39 non m sedan models that use a 12mm bolt diameter. This part replaces the bushing in E39 arm OE numbers: 33326755471 and 33326755472. Stock rubber control arm bushings give a disconnected and mushy feel to the front suspension, especially when worn, as the bushing deflects more than it should. You get sloppy steering, vibrations, and poor handling which makes the car feel unstable. These urethane bushings are stiffer than stock rubber and will