Powerflex Front Anti-Roll Bar (Sway Bar) Mounting Bushes 26.5mm for BMW Z4 E89 2009-2016, Polyurethane Pair, PFF5-4602-26.5, OE 31356765574

Powerflex Front Stabiliser Bar D‑Bushes 26.5 mm for BMW Z4 E89 2009–2016

Give your BMW Z4 E89 the crisp front end it deserves with this Powerflex polyurethane bushing set. These front bar D‑bushes replace ageing factory rubber on the Z4’s front stabiliser bar, tightening up chassis control, improving turn‑in and keeping geometry consistent under load. If you want more confidence on B‑roads and a more planted feel on the motorway, this is a simple, high‑impact upgrade that delivers every time.

Where old rubber can flex and deteriorate, Powerflex polyurethane keeps the bar located, so the tyres stay in better contact with the road and the car tracks true under cornering and braking. Expect cleaner steering feedback, reduced body movement and a more precise, connected drive. We fit these regularly at MJ Modifications and customers consistently report sharper response and improved stability without unwanted noise or harshness.

• Transforms steering feel with tighter front end control
• Helps maintain alignment for predictable handling and braking
• Reduces uneven tyre wear by keeping the front bar working efficiently
• Durable polyurethane with a lifetime warranty for road use
• Direct replacement for tired OEM rubber bushes

Key product info

• Part number: PFF5-4602-26.5
• Vehicle application: BMW Z4 E89 2009–2016
• Location: Front stabiliser bar to chassis
• Bar size: 26.5 mm
• Pack contents: Pair of bushes
• OEM reference: 31356765574
• Diagram reference: 3
• Warranty: Lifetime

Fitment and sizing

This set is for a 26.5 mm front bar only. Please confirm the diameter before ordering by measuring the bar with vernier callipers or checking against your specific factory build spec. Correct sizing ensures the best performance and longevity.

Installation

Professional fitting is recommended for optimal results. MJ Modifications in Warwickshire can supply and install this kit. Request a fitting quote at info@mjmodifications.co.uk.

Why Powerflex on your Z4 E89

Powerflex bushes are engineered to control unwanted movement without adding noise or harshness, giving you precise steering input and consistent chassis behaviour in all weather. They are a cost‑effective performance enhancement for daily driving, spirited road use and fast‑road setups.

Common issues this cures

• Vague steering and front end float
• Brake shimmy from bar movement
• Irregular tyre wear caused by geometry shift

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