Powerflex Black Series Front Lower Control Arm Rear Bush Caster Offset PFF5-1302GBLK for BMW 1 Series F40, 2 Series F44, F52; MINI F54 F55 F56 F57 F60

Powerflex Black Series Front Wishbone Rear Position Bushes with Caster Increase for BMW F40 F44 F52 and MINI F54 F55 F56 F57 F60

Part number: PFF5-1302GBLK

Transform steering feel, tighten front axle geometry and unlock confidence on fast road and track with these race-focused polyurethane rear-position wishbone bushes. The Powerflex Black Series compound delivers ultra-low deflection for laser-sharp response, while the offset design builds in approximately 1 degree of extra caster for improved camber gain in corners and rock-solid straight line stability.

Engineered around a precision CNC machined mount with a knurled body that retains lubricant and allows the bush to rotate freely, this setup reduces torsional wind-up, cuts wear and keeps alignment consistent under load. The result is crisp turn-in, more consistent braking stability and repeatable handling lap after lap.

We run PFF5-1302GBLK on our own builds and customer cars. Feedback is the same every time: noticeably better steering precision, tighter front end control and a more connected drive without the vagueness of tired rubber bushes.

Key highlights

• Black Series polyurethane, Shore A 95 for maximum chassis control in demanding use
• Approx 1 degree additional caster for enhanced camber on lock and sharper response
• Knurled, grease-retaining body for smooth articulation and reduced wear
• CNC machined mount for an accurate, repeatable fit
• Ideal for fast road, track days and motorsport where geometry stability matters

Vehicle applications

Direct replacement rear-position bushing for the front lower arm on the following models:

• BMW 1 Series F40
• BMW 1 Series F52 Sedan
• BMW 2 Series F44 Gran Coupe
• MINI F54 Clubman
• MINI F55 5 Door
• MINI F56 3 Door Hatch
• MINI F57 Convertible
• MINI F60 Countryman

Unsure on fitment? Add your UK registration or the last 7 of your VIN at checkout and we will confirm compatibility before dispatch.

Replaces OE references

• 31126850403 / 31126850404
• 31126874341 / 31126874342

What is included

• 2 x Powerflex Black Series rear-position bushes for the front lower control arms

One kit covers both sides of the vehicle.

Installation

Professional fitting recommended. Book our Warwickshire workshop for installation and alignment setup. Contact MJ Modifications for a quote at info@mjmodifications.co.uk.

Download the official fitting guide

Why this upgrade

• Reduces unwanted arm movement for consistent front-end geometry
• Improves steering accuracy and on-centre feel
• Supports aggressive driving without the compliance of factory rubber
• Proven on our own cars and highly rated by customers

Image and diagram reference

Diagram reference: 2

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