Powerflex PFF5-4020 Engine Mount Insert Kit for BMW 4 Series G22/G23 (2020-on) Road Series Yellow 70A Polyurethane, Fits OEM 22112284817 22112284818

Part number: PFF5-4020

Transform the way your BMW 4 Series feels on the road

Give your G22 or G23 a tighter, more precise drivetrain with this PFF5-4020 motor mount insert pair. Crafted in Yellow 70A polyurethane, this upgrade fills the voids in the factory engine supports to stabilise the powertrain under acceleration, braking and gear changes. Expect crisper throttle pickup, tidier shifts and a more connected driving experience without sacrificing day-to-day comfort.

Why enthusiasts choose this poly bush insert kit

• Reduces engine rock and drivetrain lash for cleaner power delivery
• Improves shift feel by limiting movement of the powertrain assembly
• Helps curb wheel hop and shunt during hard launches and lift-off
• Keeps the OEM mounts from overworking by supporting the stock rubber
• Quick fitment - typically no need to remove the original mounts from the car
• Balanced 70A durometer for street and fast-road use with minimal NVH increase

We have installed this insert kit on customer BMW 4 Series builds at MJ Modifications and the feedback is consistently positive. Drivers report a more planted front end, better drivability in stop-start traffic and greater confidence when pressing on.

What is included

• Quantity: 2 inserts
• Material: Yellow 70A polyurethane
• Series: Road-focused specification

Compatibility and cross references

• Chassis: BMW 4 Series G22 coupe and G23 convertible - 2020 onwards
• Diagram reference: 21
• Fits into mounts corresponding to OEM numbers: 22112284817 and 22112284818

Important note on NVH

A modest rise in vibration and cabin feedback, particularly at idle, is normal when reinforcing the connecting mounts between the engine and chassis. The 70A rating offers an excellent compromise for daily-driven cars that enjoy spirited use.

Professional fitting available

For hassle-free installation and expert advice, book your fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Search terms to help you find the right upgrade

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