Rear Wheel Bearing Housing Bushing - Audi / A4 / A5 / A6 / S6 / A7 / S7 / Q5

Rubber OEM bushings deteriorate with age. Upgrade your bushings to Lifetime Warranty Powerflex bushings. Bushings that won't increase noise or harshness while providing a lifetime of handling improvement and safety.

Increased Tire Life
Decreased Deflection
Improved Responsiveness
Reduced Braking Distances
Improved Performance
Increased Safety 


Powerflex Street and Black Series are both types of suspension bushings designed to enhance the performance and handling of vehicles. The main difference between Powerflex Street and Black Series bushings lies in their durometer or hardness levels.


Powerflex Street bushings are designed for a balance between improved performance and comfort. They are made from a softer durometer material compared to the Black Series bushings. This results in better noise and vibration isolation, making them suitable for daily driving and enthusiasts looking for enhanced handling without sacrificing too much ride comfort.


Powerflex Black Series bushings are engineered for maximum performance and handling improvements. They are made from a harder durometer material, providing more precise control over suspension movement and reducing flex during aggressive driving. While they offer significant performance benefits, they may transmit more road noise and vibration into the cabin compared to the Street bushings.

In summary, Powerflex Street bushings are a more comfortable option for those who want an improvement in handling without compromising too much on ride quality, while Powerflex Black Series bushings are ideal for enthusiasts who prioritize the highest levels of performance and are willing to accept a firmer ride in exchange for enhanced control and responsiveness. The choice between the two depends on individual preferences, driving style, and the intended use of the vehicle.

OE / OEM Cross Reference Numbers:8K0505279E

This part also goes by the following cross reference.

Cross Reference Part Number: OEM_Cross_Reference