Powerflex PFR5-412-12b Rear Upper Control/Wishbone Arm Outer to Hub/Knuckle Bushes (Pair) for BMW 1 Series E81-E88 & 3 Series E90-E93 (E8x/E9x incl xDrive) - Polyurethane Road Series - Rear Camber/Toe Link Mount - Ref 12b

BMW E8x E9x Rear Knuckle Mount Bushing Pair – PFR5-412-12b – Reference 12b

Sharpen your BMW’s rear-end precision with this polyurethane bushing pair for the upper link to hub carrier. Part number PFR5-412-12b replaces tired factory rubber, tightening rear geometry for crisper turn-in, steadier camber and toe under load, and more predictable handling on UK roads. Expect better tyre wear, improved braking stability and a more connected drive without the harshness of solid mounts. Ideal for daily use, fast-road builds and spirited B-road driving.

We fit these at MJ Modifications and our customers love the transformation. Consistent alignment equals confidence on corner exit and fewer alignment headaches after hard use. If you are chasing a firmer, longer-lasting solution for the outer joint of the rear upper link, this is the proven upgrade.

Why this bushing upgrade works

• Controls deflection at the hub carrier for stable rear geometry
• Reduces squirm and tramlining for cleaner feedback through the chassis
• Helps minimise inner-edge tyre wear on lowered or spiritedly driven cars
• Durable polyurethane outlasts OEM rubber for long-term performance
• Road Series comfort with performance focus – great balance for UK conditions

Vehicle fitment

For the following BMW platforms and variants, including xDrive where applicable:

• 1 Series: E81, E82, E87, E88
• 3 Series: E90, E91, E92, E93

Fits the outer bushing position on the rear upper link to hub carrier.

What you receive

• 2 x polyurethane bushings for the rear upper link to hub carrier

Quantity required per vehicle: 2. Supplied as a matched pair.

Part details

• Brand: Powerflex Road Series
• Part number: PFR5-412-12b
• Reference: 12b
• EAN: 5055676501721

Installation and fitting

Professional fitting recommended to ensure correct alignment and torque. For expert installation, contact MJ Modifications in Warwickshire for a quote at info@mjmodifications.co.uk.

Download the official installation guide

Compatibility check before dispatch

We can confirm fitment before shipping. Add your UK registration or last 7 of VIN at checkout and we will verify suitability for your vehicle.

Customer results

Frequent feedback includes tighter rear axle control, more confidence on uneven surfaces and reduced tyre feathering after alignment. A great upgrade for mapped cars, cars on uprated springs and dampers, or anyone wanting OEM-plus precision.

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