Powerflex Black Series Front Radius Arm to Chassis Bushes for BMW 3 Series F30 F31 F34 (Front Lower Control Arm Rear) - Track & Motorsport Polyurethane 95A - PFF5-1901BLK - Replaces OEM 31126852991 31126852992

Track-grade front tension strut to body bush kit for BMW 3 Series F30, F31, F34 — PFF5-1901BLK

Unlock razor-sharp steering feel and consistent alignment control with this motorsport-spec polyurethane bush pair from Powerflex. Part number PFF5-1901BLK replaces the soft factory mounts at the rear of the front lower arm, giving your F3x chassis rock-steady geometry under hard braking and aggressive cornering. Built in 95 Shore A material for serious circuit work, these bushes deliver the precise feedback, stability and confidence fast drivers demand.

We have fitted these on our own builds and for many happy customers. The result is immediate: crisper turn-in, reduced toe change under load and a planted front end that inspires push-after-push on track days. If you’re chasing lap-time consistency and durability from your suspension, this is the upgrade to make.

What you get

• Part number: PFF5-1901BLK
• Quantity: 2 bushes (pair)
• Compound: Black Series polyurethane, 95 Shore A
• Diagram reference: 2

Fitment and position

• BMW 3 Series F30, F31, F34
• Location: rear mount of the front lower control arm
• Also known as: front wishbone rear bush, tension strut to chassis mount, compression strut rear bushing, arm-to-body bush
• OEM cross-reference: 31126852991, 31126852992

Why choose this bush kit

• Holds caster and camber more consistently when loaded
• Minimises compliance to reduce unwanted deflection
• Sharper front-end response and more direct steering feel
• Motorsport-ready durability for repeated heat cycles and kerb strikes
• Direct replacement for the standard rubber mounts

Ideal use

Designed for track and competition. Perfect for drivers seeking a stiff, precise solution in the front arm rear position without the maintenance of spherical joints.

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. Request a fitting quote: info@mjmodifications.co.uk.

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