Powerflex PFF5-4020 Engine/Motor Mount Insert Bushing Kit for BMW Z4 E89 2009-2016 – Yellow 70A Polyurethane Void Filler (2 Inserts) Fits OE 22112284817/22112284818

PFF5-4020 Poly Motor Mount Bush Inserts for BMW Z4 E89 2009-onwards

Transform the way your BMW Z4 E89 puts power down with this pair of Yellow 70 Shore A polyurethane motor mount bush inserts. Designed to slot into the voiding of the factory powertrain mounts, PFF5-4020 firms up engine support to curb unwanted movement, sharpen throttle response and deliver cleaner, more precise gear changes. Ideal for fast-road use and enthusiast builds that want a tighter, more connected drive without the harshness of solid mounts.

What you will feel

• Noticeably steadier drivetrain under acceleration and on-off throttle transitions
• Crisper gearchanges thanks to reduced engine rock
• More immediate response to pedal inputs and improved traction feel
• More consistent handling balance as the powertrain stays aligned with the chassis
• Helps reduce fatigue of ageing OE mounts by supporting the original rubber
• Only a small increase in cabin NVH at idle compared with full replacement stiffer mounts

Why enthusiasts choose this upgrade

• High quality polyurethane in Yellow 70A for daily-driven performance
• Slides into the existing mount voids, so there is no need to remove the OEM mount for installation
• Engineered specifically for BMW Z4 E89 2009-on for a precise, secure fit
• Trusted by our team and our customers – we have fitted these inserts on in-house builds and feedback has been excellent

Technical details

• Part number: PFF5-4020
• Vehicle: BMW Z4 E89 2009-onwards
• Compound: Yellow polyurethane, 70 Shore A
• Pack contents: 2 inserts
• Diagram ref: 21
• Replaces OEM refs: 22112284817, 22112284818

Track-focused option

Building a dedicated circuit or competition car and want maximum stiffness and response. Choose the 95A motorsport compound version for the most control of drivetrain movement. Expect a greater increase in NVH compared with the road-focused Yellow 70A inserts.

Fitment and installation

PFF5-4020 inserts press into the voids of the original Z4 E89 powertrain mounts. A modest rise in noise, vibration and harshness at idle is normal when stiffening the connection between the engine and chassis. The firmer the compound, the more NVH you will feel.

Prefer professional installation. Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Common search terms

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