Powerflex PFR5-412 Polybush Rear Upper Control Arm/Wishbone/Link to Hub/Knuckle Bushes for BMW X1 E84 xDrive AWD/4x4 2008-2015 - Wheel Carrier/Hub Carrier Bushings | Polyurethane Suspension Bush Kit Pair

Powerflex PFR5-412 Poly Bush Set for BMW X1 E84 xDrive

Transform the back end of your E84 X1 with this uprated polyurethane bushing kit from Powerflex. The PFR5-412 kit replaces the factory rubber mounts that sit between the rear upper link and the wheel carrier, tightening up the chassis for crisper turn in, better mid-corner stability and more consistent alignment under load. Ideal for spirited road use, daily driving and OEM-plus refresh builds, this is a proven fit-and-forget suspension upgrade that resists oil, heat and road grime far better than standard parts.

We run these on our own cars and have installed them for countless customers with excellent feedback on steering precision, braking confidence and reduced rear-end wander. If your BMW feels vague, tramlines, chews through tyres or struggles to hold geometry, tired rubber is usually the culprit. These poly bushes keep everything locked in and working as intended.

Key details

• Part number: PFR5-412
• Location: Rear upper link to hub carrier on E84 chassis
• Vehicle: BMW X1 E84 xDrive 2008 to 2015
• Diagram reference: 12a
• Contents: Pair of bushes with sleeves

Why this upgrade

• Sharper handling with reduced deflection compared to OE rubber
• Holds alignment under braking and cornering for predictable grip
• Smoother tyre wear and improved contact patch stability
• Durable, corrosion resistant and impervious to common contaminants
• Excellent noise, vibration and harshness control for road use
• Backed by the Powerflex Lifetime Warranty for peace of mind

Compatibility

Fits BMW X1 E84 xDrive AWD models built from 2008, 2009, 2010, 2011, 2012, 2013, 2014 to 2015. Also known as rear knuckle bushes, rear hub carrier bushes, upper wishbone to hub bushings or rear upper arm to wheel carrier mounts.

What you will feel

• More direct rear-end response and improved turn in
• Less rear steer and a calmer car over bumps
• Confidence under heavy braking with stable geometry

Professional fitting

Installation is straightforward for a competent workshop with a press. For expert fitting, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Great for

• Suspension refresh on ageing E84 platforms
• Fast-road builds wanting OE comfort with tighter control
• Preventing premature tyre wear caused by bush movement

Common search terms

BMW X1 E84 rear knuckle bushings, E84 xDrive rear hub carrier mount, BMW X1 upper wishbone to hub bush, rear upper arm bushing kit, poly bush kit BMW X1 E84 AWD, BMW E84 suspension refresh, rear wheel carrier bush set, performance chassis bushes, polyurethane rear link bushes, BMW X1 4x4 rear suspension bushes, hub to link bushing pair, uprated rear suspension mounts, geometry control bushes, BMW E84 rear axle upgrade, Powerflex polybush PFR5-412.