Powerflex PFR5-5630-10 Rear Shock Top Mount Bracket & Polyurethane Polybush Kit 10mm Pin (2 Bushes) for BMW Z4M E85/E86 2006-2009

PFR5-5630-10 Rear Damper Upper Mount Bracket and Polyurethane Bush Set for BMW Z4 M E85 E86 2006 to 2009

Give your Z4 M Roadster or Z4 M Coupé the rear-end precision it deserves with this pair of performance polyurethane bushes and brackets for the rear damper upper mount. The PFR5-5630-10 kit tightens up the back of the car, reduces flex at the shock tower, and helps keep geometry stable under load. Ideal for spirited road driving and track days where consistency and confidence matter.

Part number: PFR5-5630-10

Fitment: BMW Z4 M E85 Roadster and E86 Coupé, 2006 to 2009

Pin size: 10 mm upper shock pin

Diagram reference: 30

Contents: 2 polyurethane bushes

What you will feel

• Sharper steering response and more connected rear axle feel
• Improved stability over bumps and during quick direction changes
• More consistent wheel alignment under braking and acceleration
• Better tyre contact patch for grip you can trust
• Reduced unwanted movement compared to ageing factory rubber mounts

Why this kit

• Engineered polyurethane resists wear and degradation far better than OE rubber
• Fit and forget durability with excellent control of noise, vibration and harshness
• Backed by the Powerflex Lifetime Warranty for total peace of mind

Pin size guidance

This version suits dampers that use a 10 mm upper pin. As a guide, many Original BMW, AST, Bilstein HD and Sport, Bilstein PSS, FK, H and R, Koni Sport, KW V1 V2 V3 and ST setups use 10 mm. Some JRZ RS and Tein units use 12 mm. If unsure, measure the diameter of the top shaft. For 12 mm, choose PFR5-5630-12.

Compatibility notes

• Designed for BMW Z4 M models only, E85 and E86 2006 to 2009
• Will not fit E36 or E46 Cabriolet models

Proven by enthusiasts

We have fitted this bush set on our own builds and for many customer cars. Feedback is consistently positive, with owners praising the tighter rear end, cleaner feedback through the chassis and a more planted drive without fuss.

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk.

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