BMW 3 Series Polyurethane Bushing Set - Front Arm Upper Bushing by Powerflex (F30)
Suspension bushings are one of the most highly stressed components fitted to a motor car. They undergo enormous strains in the most arduous of conditions with no maintenance or lubrication.
The material standard bushings are manufactured from is a rubber compound containing natural products which deteriorate with age. It becomes softer and more pliable, resisting the forces placed on it less and less. Therefore allowing more and more movement of suspension components and offering less and less control over the suspension geometry.
This causes excessive tire wear, braking instability and poor handling. This is the single biggest reason you can instantly tell the difference driving a three year old car and a new one. However, even new cars will benefit from Powerflex bushings!
These are replacement parts in a black material that are 200% stiffer than the original rubber bushings to withstand increased loading seen in this position of the car.
Because of their superior design they offer much more effective control of the suspension components to a much greater extent than normal rubber items.
This bushing fits BMW arm part number 31126855743 / 31126855741 / 31126855742.