Powerflex PFR5-1921 Rear Subframe/Cradle Polyurethane/Poly Bush/Bushing Insert Kit for BMW 3 Series F30 F31 F34 F3x xDrive AWD (4x4) Saloon/Touring/GT - Set of 2 -

Transform rear-end stability on your BMW 3 Series xDrive with polyurethane rear cradle inserts

If your F30, F31 or F34 four wheel drive 3 Series feels a little loose at the back, this Powerflex insert pair is the proven fix. The precision moulded polyurethane pieces slide into the voids of the original rear cradle bushes to control movement of the subframe under load. The result is crisper turn in, more confidence on bumpy B-roads, better traction out of corners and improved braking stability without the harshness of solid mounts.

Why this upgrade works

• Controls subframe deflection for sharper, more predictable handling
• Helps maintain alignment under load for steadier tyre contact and reduced shoulder wear
• Enhances braking feel and rear axle stability during hard stops
• Improves traction on xDrive AWD cars without a big increase in NVH
• Durable polyurethane construction that resists oil, salt and age-related softening
• Ideal for daily driving and fast-road use
• Backed by the Powerflex Lifetime Warranty

Ageing rubber subframe mounts allow the rear cradle to shift, causing vague steering, rear steer effects and inconsistent tyre wear. These inserts support the existing OE bush, tightening the chassis response while keeping comfort intact. Our workshop has fitted many sets and customers consistently report a more planted feel from the back of the car with no intrusive cabin noise.

Vehicle compatibility

Fits BMW 3 Series xDrive models on the F3x platform:

• F30 Saloon xDrive
• F31 Touring xDrive
• F34 Gran Turismo xDrive

What is included

• 2 x rear cradle bush inserts for the rear position
• Fitting grease and instructions from Powerflex

Installation and support

Designed to insert into the voids of the factory rubber bush, making this a smart, cost-effective chassis upgrade. Professional fitting available at MJ Modifications in Warwickshire. For a quote, email info@mjmodifications.co.uk.

Quick benefits at a glance

• More precise rear axle control
• Cleaner steering feedback and cornering balance
• Better grip on uneven roads
• Improved braking confidence
• Long-lasting performance

Search terms to help you find the right part

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