Powerflex PFR5-1920 Rear Subframe Front Bush Insert Kit for BMW 3 Series F30 F31 F34 (2012-2019) Polyurethane, Pack of 2 OE 33316792509

Sharpen your 3 Series chassis with rear cradle front inserts

Give your BMW a more precise, composed rear end with this polyurethane insert pair that supports the front mounts of the rear axle carrier. By filling the voids in the factory rubber, the kit limits cradle movement so the geometry stays consistent when you brake, turn and accelerate. Expect tidier cornering, improved grip out of bends and a more assured, connected feel on B-roads and motorway alike.

Part number: PFR5-1920

OE cross-reference: 33316792509

Diagram reference: 20

Contents: 2 polyurethane inserts

Fitment

BMW 3 Series F30 Saloon, F31 Touring, F34 Gran Turismo, model years 2012 to 2019. Position: rear axle carrier front location inserts. Designed to be installed into the cavities of the original rubber mount.

Why upgrade

• Reduces rear cradle movement for cleaner geometry control and crisper turn-in
• Helps curb rear steer effects and axle tramp for calmer traction
• More consistent tyre contact patch for confidence under braking
• Durable polyurethane ideal for fast road and performance use
• Helps reduce uneven tyre wear caused by subframe shift
• Manufacturer lifetime warranty for long-term peace of mind

Real-world results

We have fitted this upgrade on our own cars and countless customer vehicles. Feedback is consistently positive, with owners reporting a more planted rear end, better traction on uneven surfaces and a sharper, more predictable response without harshness.

Installation

The inserts are designed to fit into the voids of the existing rubber mount, offering a straightforward upgrade without pressing out the original bush. For professional fitting and alignment, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Good to know

• Material: performance polyurethane insert for the rear axle carrier front mounts
• Quantity: pair of inserts for one axle carrier front location
• Direct alternative to OE reference 33316792509 bush location

Order with confidence

Simple to fit, high-impact to drive. Add immediate precision and stability to your 3 Series with the PFR5-1920 insert kit and enjoy clearer feedback, tighter responses and improved control on every journey.

Search terms: rear cradle bush insert BMW F30, rear axle carrier front mount insert, BMW F31 rear bushing support, F34 Gran Turismo subframe insert pair, poly bush upgrade 3 Series 2012-2019, polyurethane rear carrier insert kit, BMW rear subframe void filler, handling upgrade F30 F31 F34, fast road suspension bushes, rear end stability improvement, alignment control bushings, NVH friendly chassis bushes, OE 33316792509 alternative, PFR5-1920 insert set.