Powerflex PFF5-4020 Engine/Motor Mount Insert Bush Kit – BMW 3 Series E90 E91 E92 E93 E9x (2005-2013) – 70A Yellow Polyurethane Road Series – Torque/Transmission Mount Insert – Reduce Engine Rock, Drivetrain Shunt & Gearbox Movement

Powerflex PFF5-4020 Motor Mount Insert Bushes for BMW 3 Series E90 E91 E92 E93 2005-2013

Part number: PFF5-4020

Transform the way your E9x 3 Series puts power down with these Powerflex PFF5-4020 motor mount insert bushes. Made from Road Series Yellow 70A polyurethane, they fill the voids in the factory mounts to curb powertrain twist, cut drivetrain shunt and keep the engine and gearbox properly located under load. Expect crisper acceleration, cleaner upshifts and a more direct, connected feel without making the car harsh to live with. A favourite on our own cars and consistently praised by customers, this is a simple, high-value upgrade for fast-road BMWs.

What you will feel

• Noticeably reduced engine rock for tighter driveline control
• Smoother, more precise gear changes under acceleration
• Improved pedal response and power delivery on and off throttle
• More consistent handling as the powertrain stays aligned in corners and during braking
• Helps support and extend the life of the original mounts
• Quick installation with mounts in situ for minimal downtime

Fitment

BMW 3 Series E9x platform 2005-2013:

• E90 Saloon
• E91 Touring
• E92 Coupe
• E93 Convertible

Diagram reference: 21

Technical details

• Material: Powerflex Yellow polyurethane, 70A Shore hardness
• Series: Road Series for daily and spirited road use
• Pack contents: 2 insert bushes
• Fits OE mount voids that cross-reference to: 22112284817, 22112284818

NVH note

Stiffening the connection between the power unit and subframe can add a slight increase in vibration at idle. The 70A Road compound is engineered to deliver control with only a modest rise in cabin buzz, making it a smart choice for street-driven cars that want performance without the drone.

Installation and support

We have fitted these inserts many times at MJ Modifications in Warwickshire and the results speak for themselves: better shift feel, reduced driveline lash and a more planted car. Want us to install yours? Request a fitting quote at info@mjmodifications.co.uk.

Also consider

Depending on your OE mount design, Powerflex PFF5-4021 may be the alternative insert style. Please check your original mount type before ordering if unsure.

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