Powerflex Black

PFR5-4614BLK Rear Axle Carrier Front Position Insert - BMW E46, Z4, X3 Handling Upgrade

Dial in rear-end control and confidence with the PFR5-4614BLK rear axle carrier front position insert. Built from a race-hard 95 Shore A polyurethane, this insert limits flex in the factory mount, helping keep alignment steady under load and giving your BMW a sharper, more planted feel on fast road, track day and drift setups. If you want crisper response, better traction off corners and a more connected chassis without replacing the full bush, this is the smart, cost-effective upgrade.

We run these on our own builds and have installed them for countless customers. Feedback is consistently positive - tighter rear-end behaviour, reduced movement from the subframe area, improved stability under hard acceleration and braking, and predictable handling with minimal increase in NVH for the performance gained.

Key benefits

• Stiff 95A polyurethane for serious performance driving and geometry control
• Insert design fills the voids in the OE rubber mount to cut unwanted movement
• Sharper turn-in, increased rear stability and more consistent tyre contact
• Durable, oil and abrasion resistant material for long service life
• Great value upgrade versus pressing out and replacing complete bushes

Fitment and applications

Suitable for the following BMW models:

• 3 Series E46 - Saloon, Touring, Coupe, Convertible, Compact, xi and xd
• Z4 E85 and E86 2003 to 2009
• Z4 E89
• X3

Exclusions: E46 M3 and Z4M.

Replaces

Fits into the voids of the original rear axle carrier front bush.

OEM references:

• 33316770783
• 33316770784

Part number

PFR5-4614BLK

What you receive

• 2 x polyurethane inserts

Two inserts are required per vehicle.

Diagram reference

Ref No. 10

Installation

Professional fitting recommended. We can install this at MJ Modifications in Warwickshire. Request a fitting quote: info@mjmodifications.co.uk

Download the fitting guide

Compatibility check before dispatch

We verify fitment before shipping. Add your UK registration or the last 7 of your VIN at checkout and we will confirm compatibility.

Brand

Powerflex

Search-friendly terms

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