Powerflex Engine Mount Insert Kit for BMW 3 Series F30, F31, F34 — PFF5-4020
Upgrade your BMW 3 Series drivetrain with the Powerflex PFF5-4020 Engine Mount Insert Kit. This polyurethane engine mount insert kit is a proven, high-value performance upgrade for BMW F30, F31 Touring and F34 Gran Turismo models, designed to reduce unwanted engine movement, sharpen throttle response and deliver more direct power transfer. If you’re searching for BMW F30 engine mount inserts, BMW 3 Series engine mount upgrade, Powerflex engine mount bush, or PFF5-4020, this is the road and fast-road solution that balances control with comfort.
Why choose Powerflex PFF5-4020 engine mount inserts?
- Intermediate alternative between BMW aluminium inserts and full replacement solid/competition mounts
- Yellow 70A durometer polyurethane fills OE mount voids to cut engine/transmission movement
- Minimal increase in NVH for tuned daily-driven and fast road cars
- Improved gear shifting, sharper throttle response and more consistent power delivery
- More balanced on/off throttle handling and prolonged life of OE mounts
- Smart design can be fitted without removing the original engine mounts
At Nforcd, we’ve installed these Powerflex engine mount insert kits for customers looking to tighten up drivetrain feel on the BMW F30, F31 and F34 platforms. Feedback has been consistently positive, with drivers reporting crisper shifts and a tighter, more connected drive while retaining road comfort.
Product details
- Part number: PFF5-4020
- Series: Powerflex Road Series (for road and fast road use)
- Material: Polyurethane, Yellow 70A durometer
- Number of bushes in pack: 2
- Diagram reference: 21
- Replaces OEM bush part numbers: 22112284817, 22112284818
Fitment
BMW 3 Series:
- F30 (Saloon)
- F31 (Touring)
- F34 (Gran Turismo)
Ideal search terms: BMW F30 engine mount insert kit, F31 engine mount bush, F34 GT engine mount upgrade, Powerflex PFF5-4020, BMW 3 Series motor mount inserts, polyurethane engine mount inserts, BMW drivetrain mount upgrade.
Road Series benefits
Powerflex Road Series products are engineered to improve your car’s road holding and chassis performance by controlling unwanted flex. Benefits include prolonged tyre life, improved performance, increased safety and greater cost-effectiveness.
Installation and NVH note
These inserts are designed to be installed with the OE mounts in place, making fitment quicker and easier. A small increase in NVH, usually noticeable at idle, should be expected when stiffening the mount between the engine and chassis. The harder the material, the greater the NVH transmitted; the Yellow 70A compound provides an excellent fast-road balance.
Professional fitting
We recommend professional installation. Nforcd offers fitting at our Warwickshire workshop — request a quote at Sales@nforcd.com.