Description
Powerflex Control Arm Outer Bushings (Caster Offset) for Porsche 911, 996 & 997, & Boxster.
Function and design
A suspension arm bushing forms a controlled mounting point between the arm and its supporting structure. Compliance at that joint allows movement under load; the condition and construction of the bushing influence how consistently the arm locates the wheel.
What to consider
For a suspension refresh, replacing deteriorated mounting bushings addresses movement at the joint rather than changing the spring or damper rate. Final steering and handling behavior also depends on the remaining joints, tires and alignment.
Application
Porsche 911, 996 & 997, & Boxster.
Choose your series
- Street: the road-oriented series; compound selection depends on the individual application.
- Black Series: the firmer series generally intended to prioritize movement control. Product-specific fitment and intended-use restrictions still apply.
Geometry specification
An offset bushing changes the relationship at its mounting point. A fixed offset is not an on-car adjustment range. Confirm the intended orientation and have the final alignment checked after installation.
Available options and part numbers
| Series | Manufacturer SKU |
|---|---|
| Street | PFF57-502G |
| Black Series | PFF57-502GBLK |
Installation considerations
Inspect the arm, housing and associated joints during installation. Use the fitting procedure for the selected part number and check alignment after work affecting suspension geometry.
Representative image: One or more images shown are generic or representative photographs provided for illustration. The product supplied may differ in shape, color, dimensions, hardware, or quantity shown. Your selected SKU and the written product specification determine the item supplied.