Powerflex Rear Subframe/Cradle Front Bush Insert Kit (Pair) for BMW 3 Series F30 F31 F34 F3x - Road Series Polyurethane Poly Bushings - Rear Axle Carrier Mount Upgrade - Replaces OE 33316792509

Rear Cradle Mount Insert Pair for BMW 3 Series F30 F31 F34 - Powerflex Road Grade Polyurethane

Transform the way your F3x drives with this genuine Powerflex rear cradle mount insert set. These polyurethane inserts fill the voids in the factory rear axle carrier front mounts to control subframe movement, delivering sharper turn-in, improved traction and a more planted rear end under acceleration, braking and cornering.

If you want a meaningful handling upgrade without pressing out the original mounts, this insert kit is the smart, high-value choice. Ideal for daily use and spirited B-road driving, it tightens the chassis feel while keeping comfort in mind.

Key details

• Vehicle: BMW 3 Series F30 Saloon, F31 Touring, F34 Gran Turismo
• Position: Front mounts on the rear axle carrier
• Diagram reference: 20
• Series: Powerflex Road Series polyurethane
• Pack contents: 2 inserts (pair)
• OE cross-reference: replaces factory bush part number 33316792509

Why this upgrade works

• Controls rear cradle movement for cleaner power delivery and consistent geometry under load
• Reduces axle tramp and wheel hop for better traction out of corners
• Enhances steering precision and stability for confidence at speed
• Helps minimise rear steer and improves tyre contact on uneven surfaces
• Durable polyurethane compound for long service life and dependable performance
• Insert design slides into the existing mount voids - no press required

We have fitted these on customer cars and on our own builds. Feedback has been excellent, with a noticeably tighter rear end, more predictable behaviour on B-roads and a reassuring improvement in overall balance.

Fitting and support

Professional installation available at MJ Modifications in Warwickshire. For a fitting quote or advice, email info@mjmodifications.co.uk. We are happy to help with compatibility questions and setup guidance.

What you receive

• Powerflex rear axle carrier front mount insert pair
• Installation grease where applicable
• Instructions for a straightforward fit

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