Powerflex PFF5-4101 Poly Bush/Bushing Kit - Front Lower Control Arm Rear Mount (Thrust/Radius/Tension Strut/Wishbone Rear to Chassis) for BMW 3 Series xDrive AWD F30 F31 F34 GT - Replaces 31126854729 - Pack of 2

PFF5-4101 Polyurethane Bush Kit - Front Lower Arm Rear Mount for BMW 3 Series xDrive F30 F31 F34 - Pack of 2

Transform steering accuracy and chassis control on your AWD 3 Series with the PFF5-4101 polyurethane bush kit from Powerflex. Designed for the front lower arm rear mounting point on BMW F30 Saloon xDrive, F31 Touring xDrive and F34 Gran Turismo xDrive, this upgrade replaces the ageing OE rubber with high-performance polymer bushings for a more precise, planted drive on the road.

We fit these in-house at MJ Modifications and our customers consistently report crisper turn in, improved straight line stability and more confidence under hard braking. If your car feels vague, wanders over uneven surfaces or shows inconsistent alignment, these bushes deliver the tight, consistent geometry your suspension needs to perform at its best.

What you get

• Part number: PFF5-4101
• Vehicle: BMW 3 Series xDrive only - F30 Saloon xDrive, F31 Touring xDrive, F34 GT xDrive
• Location: Front lower control arm rear mount - also known as thrust arm rear, tension strut rear, wishbone rear bush, radius rod to body
• Diagram reference: 1
• Quantity in pack: 2 bushes
• OE reference for identification: 31126854729

Why upgrade to polyurethane here

• Offset bore sleeve mirrors the factory design to keep correct geometry while dramatically reducing unwanted movement
• Sharper steering response and better on-centre feel without harshness
• Reduced compliance under braking and cornering for more consistent camber and toe
• Enhanced road contact that can help combat edge wear and cupping on the front tyres
• Durable construction that resists the cracking and perishing common with standard rubber
• Powerflex Lifetime Warranty for long-term peace of mind

By controlling deflection at the rear of the front arm, these bushings stabilise the wheel under load, helping your F30, F31 or F34 xDrive track straight, brake harder and turn in cleanly. Ideal for fast road use and daily driving where feel and consistency matter.

Fitting and support

Professional installation recommended. MJ Modifications in Warwickshire can supply and fit this kit and carry out alignment if required. For a fitting quote or booking, email info@mjmodifications.co.uk.

Note: For xDrive models only. Please confirm your chassis code and drivetrain before ordering.

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