Heritage Polyurethane Front Control Arm Bushings - E39 5 Series

Product Details

Deflection Mitigation: Powerflex Heritage E39 Thrust Arm System

The front tension struts (thrust arms) on the E39 525i, 528i, and 530i bear the brunt of all braking loads and weight transfer. When the factory fluid-filled rubber bushings degrade, they allow the front wheels to migrate rearward under braking, completely disrupting dynamic toe-in and caster settings. The Powerflex PFF5-510H Bushing Set is a technical maintenance asset designed to anchor your tracking geometry.

Part of the Heritage Collection, this set is engineered to match Powerflex’s street-performance durometer curve but is molded in a discreet dark grey finish. This upgrade replaces the soft, hollow OE rubber with high-density polyurethane inside the 59mm arm bore. By stabilizing the primary front suspension pivot, you eliminate braking lag, resolve annoying front wheel shimmy, and establish a direct connection between front tire contact patches and your steering wheel under high load.

Technical Features:

• Targeted 59mm Application: Precision spec'd to fit 6-cylinder E39 aluminum tension strut housings.

• Geometry Stability: Locks down dynamic caster changes during heavy, threshold-braking inputs.

• Advanced Architecture: Multi-piece design allows simple press installation into original arms.

• Lifetime Material Integrity: Immune to ozone, engine oil, and hydraulic fluid breakdown.

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Lifetime Replacement

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