Powerflex Black Series 25mm Front Anti-Roll (ARB)/Sway/Stabilizer/Stabiliser Bar D-Bush Polyurethane Bushes/Bushings for BMW 5 Series E60 E61 xDrive AWD & Z4 E85 E86 (PFF5-4602-25BLK)

Powerflex Black Series 25mm Front Sway Bar Bushings for BMW E60 E61 xDrive and Z4 E85 E86

Transform front-end grip and steering feel with this track-focused polyurethane bushing set. Engineered for drivers who want razor-sharp response and consistent geometry control, these 25mm front stabiliser bar D-bushes clamp the bar securely to cut deflection, calm roll and keep alignment true under hard cornering, braking and quick direction changes.

We run this upgrade on our own builds and customer cars, and the feedback is consistent every time. Tighter front axle control, crisper initial turn-in and a more planted, confidence-inspiring drive on spirited road runs and track days. If your factory rubber mounts are perished or soft, this is the simple bolt-in fix that restores precision and ups performance.

Why choose this polyurethane bushing set

• High-durometer 95A compound limits bar movement for stable geometry and predictable handling
• Improves steering feedback and reduces lean for a more responsive front end
• Resistant to oil, fuel, road grime and heat for long service life
• Direct OE-style fitment on the front stabiliser bar, 25 mm diameter
• Ideal for fast road, club motorsport, autocross and track day use

Vehicle compatibility

• BMW 5 Series E60 E61 xDrive all-wheel drive models, 2003 to 2010
• BMW Z4 E85 Roadster and E86 Coupe, 2003 to 2009

Important check. Your front sway bar must be 25 mm. Measure with vernier calipers or confirm via VIN before ordering.

What you receive

• 2 x 25mm front stabiliser bar D-bushes

Part number

PFF5-4602-25BLK

Replaces OE references

• 31356770003
• 31352229421
• 31351096365

Technical details

• Material 95A polyurethane performance compound
• Location Front axle stabiliser bar mounts, 25 mm diameter

Fitment and support

Installation is straightforward. Safely lift the vehicle, remove the bar clamps, clean the mating surfaces, lightly lubricate as directed and torque hardware to factory specifications. For professional fitting and alignment, book with MJ Modifications, Warwickshire. Request a quote at info@mjmodifications.co.uk.

Compatibility check before dispatch

Add your UK registration or the last seven digits of your VIN at checkout and we will confirm the part suits your chassis and bar size.

Customer satisfaction

Used in-house and supplied to enthusiastic BMW owners, these front sway bar mounts consistently deliver sharper steering, improved stability and outstanding durability with minimal NVH increase for the performance gained.

Helpful search terms

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Reference diagram