Powerflex PFR5-426 Rear Differential Mount Bush Polyurethane - BMW 3 Series xDrive AWD E90 E91 E92 E93 (2005-2013) | Rear Final Drive Mount/Insert | Performance Diff Bushing Upgrade/Replacement E9x

Powerflex PFR5-426 Polyurethane Rear Final Drive Rear Mount – BMW 3 Series E90 E91 E92 E93 xDrive AWD 2005 to 2013

Part number: PFR5-426

Stop unwanted movement at the back end of your E9x xDrive. This uprated polyurethane rear final drive rear mount from Powerflex replaces the tired factory rubber mount to sharpen drivetrain control, reduce shunt, tame wheel hop and deliver crisper response on throttle and under braking. Built for durability and precision, it is a direct-fit performance bushing that keeps the rear axle geometry consistent for confident handling on road and spirited driving.

Why choose this Powerflex upgrade

• Stiffer, precision-moulded polyurethane for long service life and consistent performance
• Reduces diff wind-up and axle tramp for improved launches and traction
• Helps maintain rear alignment under load for stable cornering and predictable turn-in
• Resists oil, road salt and temperature cycles far better than standard rubber mounts
• Balances performance with comfort for daily use and fast-road setups
• Backed by the Powerflex Lifetime Warranty for peace of mind

Compatibility

For BMW 3 Series xDrive all wheel drive only: E90 saloon, E91 touring, E92 coupé, E93 convertible from 2005 to 2013. E9x AWD models only.

What you receive

• 1 x Powerflex PFR5-426 rear final drive rear mount (quantity in pack: 1)
• Assembly grease and fitting guidance from Powerflex

Technical details

• Location: rear final drive rear mount position
• Diagram reference: 26
• Direct replacement performance bushing for the OE mount

Fitting and support

Professional installation recommended. MJ Modifications in Warwickshire have installed these on customer cars and our own builds, with excellent feedback on stability, traction and rear-end control. For a fitted price or workshop availability, request a quote at info@mjmodifications.co.uk.

Why enthusiasts pick PFR5-426

Owners tell us this upgrade tightens the rear of the car, cuts out slop, and makes the 3 Series xDrive feel more planted when accelerating out of bends. It is a simple, high-value suspension and driveline improvement that complements springs, dampers and tyres for a balanced fast-road setup.

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