Powerflex Front Radius Arm to Chassis Bushes - Caster Adjustable - BMW 4 Series F32 F33 F36 - PFF5-1901G
Upgrade your BMW 4 Series handling with these Powerflex Front Radius Arm to Chassis Bushes, caster adjustable for precise geometry tuning. Powerflex part number PFF5-1901G is engineered for the BMW F32, F33 and F36 platforms and is a proven fast road suspension upgrade that sharpens steering response, improves turn-in and enhances tyre contact under heavy cornering.
In Road Series specification, this replacement bush is 60% stiffer than the original rubber bush to control unwanted suspension flex and improve chassis performance. PFF5-1901G features on-car adjustability with +/- 0.75 caster offset, allowing you to dial in extra caster for better steering feel and stability. The additional caster also generates more negative camber on turn, improving front end grip and tyre contact when pushing on.
We use these bushes on our own builds and our customers love the sharper steering and confidence they deliver on fast road setups. If you want a direct-fit bush upgrade that boosts handling without compromising road manners, this is the smart choice.
Why choose PFF5-1901G for your BMW 4 Series
- Caster adjustable front radius arm to chassis bushes - tune your alignment on the car
- Road Series compound - 60% stiffer than OE rubber for improved control
- Sharper steering feel, improved turn-in and more consistent tyre contact under load
- Ideal for road and fast road use
- Direct replacement for worn OEM bushes - upgrade your suspension precision
Compatibility - BMW 4 Series
- F32 - 4 Series Coupe
- F33 - 4 Series Convertible
- F36 - 4 Series Gran Coupe
Part numbers and technical details
- Powerflex part number: PFF5-1901G
- Diagram reference: 1
- Number of bushes in pack: 2
- Replaces OEM bush part numbers: 31126855743, 31126855741, 31126855742
- Adjustability: +/- 0.75 caster offset on the car
- Non-adjustable alternative: use Powerflex PFF5-1901
Search-friendly terms
Powerflex PFF5-1901G BMW 4 Series bushes, BMW F32 front control arm bush, F33 radius arm bush, F36 front wishbone bush, caster adjustable bush, castor adjustable bush, front radius arm to chassis bush upgrade, BMW suspension bushes, road and fast road bushes, replacement for 31126855743 31126855741 31126855742.
Fitting and setup
Professional fitting and alignment recommended to maximise the benefits of the caster adjustment. Nforcd offers fitting and geometry services in Warwickshire. Request a quote at Sales@nforcd.com.
Choose Powerflex Front Radius Arm to Chassis Bushes PFF5-1901G for your BMW F32 F33 F36 4 Series and enjoy a tighter, more precise front end on every drive.