Powerflex Black Series PFR5-426BLK Rear Differential Mount / Final Drive Bushing/Bush for BMW 1 2 3 4 Series (E81 E82 E87 E88 F20 F21 F22 F23 E90 E91 E92 E93 F30 F31 F32 F33 F36) Polyurethane Diff Carrier Rear Mount Upgrade OEM 33316769376 33316792514

Powerflex PFR5-426BLK Black Series - Rear Final Drive Mount Bushing for BMW 1, 2, 3 and 4 Series

Unlock a tighter rear end and more consistent power delivery with the Powerflex PFR5-426BLK Black Series rear final drive mounting bushing. This uprated polyurethane mount replaces the soft factory rubber at the back of the differential, keeping the final drive securely located under hard acceleration, braking and cornering. The result is cleaner shifts, improved traction off the line and a more connected, precise feel from the back axle on fast road, track day and drift builds.

Built from high-performance polyurethane, the Black Series compound is engineered to resist oil, heat and ageing far better than OEM rubber. It is a direct replacement part that combats diff wind-up, axle tramp and unwanted movement that can cause clunks and wheel hop. Expect sharper response and a planted rear end that inspires confidence.

Key reasons to choose this upgrade

• Controls final drive movement for crisper throttle response and cleaner gear changes.
• Reduces axle tramp and wheel hop for improved grip on launches and corner exits.
• Stiffer, durable poly bush material outlasts stock rubber in demanding conditions.
• Enhances rear-end stability and reduces driveline lash and diff knock.
• Direct-fit replacement for a straightforward install and long service life.

We run Powerflex bushes on our own cars and customer builds. Feedback from BMW 1 Series, 2 Series, 3 Series and 4 Series owners is consistently positive, with a noticeable gain in rear axle precision and stability.

Compatibility - BMW platforms

• 1 Series: E81, E82, E87, E88 (2004-2013) and F20, F21 (2011-2019)
• 2 Series: F22, F23 (2013+)
• 3 Series: E90, E91, E92, E93 and F30, F31 (2011+)
• 4 Series: F32, F33, F36 (2013+)

Cross-reference OEM numbers

• 33316769376
• 33176770866
• 33316792514
• 33316880637

What you receive

1 x rear final drive rear mounting bushing. Quantity required per vehicle: 1.

Fitting and support

Professional installation recommended. MJ Modifications offers in-house fitting at our Warwickshire workshop. Request a quote: info@mjmodifications.co.uk

Compatibility check before dispatch

We verify fitment prior to shipping. Add your UK registration number or the last 7 digits of your VIN at checkout so we can confirm accuracy.

Part number

PFR5-426BLK

Search terms to help you find the right part

BMW diff mount bushing, BMW rear final drive mount, diff carrier bush, rear-end mount, Black Series poly bush, uprated differential bushing, E81 diff mount, E87 final drive bush, E90 rear axle bush, E92 diff mount upgrade, E93 drivetrain mount, F20 diff bushing, F21 rear diff mount, F22 performance diff bush, F23 rear axle mount, F30 drivetrain bush, F31 diff hanger, F32 rear end bushing, F33 diff carrier mount, F36 differential bush, anti-tramp bush, wheel hop fix BMW, drivetrain lash reduction, performance polyurethane bushing, track day diff mount, drift diff bush, BMW 1 Series diff mount upgrade, BMW 2 Series rear diff bushing, BMW 3 Series differential mount, BMW 4 Series final drive bush, Powerflex Black PFR5-426BLK.