Powerflex radius arm to chassis urethane bushing, BMW F-serie RWD (F20, F22, F30…)

Powerflex Front Radius Arm to Chassis Bush – BMW F-Series RWD (F20, F22, F30, F32…)

This Powerflex polyurethane bush for the chassis-side of the front radius arm is a very popular and effective suspension upgrade for rear-wheel-drive BMW F-series models. The original rubber bush is a known wear item and often deteriorates at relatively low mileage.

Typical symptoms of a worn bush include vague steering feel, instability under braking, knocking noises, and uneven tyre wear. The Powerflex polyurethane bush restores front axle control and improves steering precision without unnecessary loss of ride comfort.

This is the chassis-side bush that replaces the original rubber component. The PFF5-1901 version is non-adjustable (non-eccentric). If caster adjustment is required, an adjustable version is available under product code PFF5-1901G.

Key Features

• Durable Powerflex polyurethane construction
• Improves steering response and front axle stability
• Reduces braking movement and suspension knock
• Ideal for road and performance-oriented use
• Direct replacement for RWD models

OEM References

• Bush: 31126855743 / 31 12 6 855 743
• Radius arm: 31126855741 / 31 12 6 855 741
• Radius arm: 31126855742 / 31 12 6 855 742

Fitment (RWD)

• BMW F20, F21 RWD (2011–2019)
• BMW F22, F23 RWD (2013–2021)
• BMW F30 / F31 / F34 RWD (Sedan / Touring / GT) (2011–2018)
• BMW F32 / F33 / F36 RWD (2013–2020)

If you are unsure about compatibility, feel free to contact us with your vehicle VIN.

Installation Instructions

Download installation instructions (PDF)