Powerflex Black Series Front Lower Control Arm Rear Bush Polyurethane PFF5-4101BLK for BMW F-Series xDrive AWD (F20 F21 F22 F23 F30 F31 F34 F32 F33 F36 1 2 3 4 Series) - Tension Strut/Caster/Radius Arm Wishbone Bushing Kit - Replaces 31126854729

Powerflex Black Series Tension Strut to Body Poly Bushes for BMW F-Series AWD

Part Number: PFF5-4101BLK
Replaces OE: 31126854729

Sharpen the front end of your BMW F-Series with these performance-grade urethane tension strut bushes. By replacing the soft factory rubber in the front lower arm rear position (often called the thrust arm, caster arm or wishbone rear mount), you gain crisper steering, improved stability under braking and more consistent geometry at speed. Built for drivers who want a more connected feel on British roads and confidence for spirited driving or the odd track day.

• Direct replacement for the front lower arm rear bushing that locates the tension strut to the body
• Firmer, more precise response with reduced wander and tramlining on uneven surfaces
• Helps maintain caster and toe under load for better mid-corner grip and straighter braking
• Long-lasting Powerflex Black Series construction resists ageing, oil, salt and road grime
• Press-in fitment. Replaces BMW part 31126854729 for a no-nonsense upgrade

We have installed these on our own builds and customer cars, and the feedback is consistently positive. Expect a tighter front end, cleaner turn-in and more even tyre wear when aligned correctly after fitting.

Vehicle compatibility

For BMW F-Series all-wheel drive models using the AWD front end layout, including:

• 1 Series F20, F21 xDrive
• 2 Series F22, F23 xDrive
• 3 Series F30, F31, F34 xDrive
• 4 Series F32, F33, F36 xDrive

If you are unsure about fitment for your specific chassis code, please ask us to confirm.

What you receive

• 2 x Powerflex Black Series bushes for the front lower arm rear mount

Quantity required per vehicle: 2

Installation and support

Professional fitting recommended, followed by a full alignment. For installation, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Fitment check before dispatch

We can verify compatibility. Add your UK registration or the last 7 of your VIN at checkout to ensure you receive the correct PFF5-4101BLK parts for your BMW.

Manufacturer

Powerflex

Popular searches: Powerflex Black PFF5-4101BLK, BMW F20 F21 F22 F23 F30 F31 F34 F32 F33 F36 AWD bush kit, front lower arm rear bush, thrust arm bushing, caster arm bush, wishbone rear mount, guide rod bush, poly bush upgrade, BMW 1 Series 2 Series 3 Series 4 Series AWD, OE cross reference 31126854729, performance suspension bushings, F3x xDrive front arm rear position.