Powerflex PFR5-4625 Rear Diff Front Mount Bush Kit for BMW E46 3 Series (Touring/Estate) – Polyurethane Bushings Pair | Differential Front Bushing Upgrade | Diff Mount Poly Bush

PFR5-4625 Rear Differential Front Mount Polyurethane Bush Kit for BMW E46 3 Series

Upgrade the rear drivetrain location on your BMW with this premium polyurethane front mounting bush kit for the rear differential. Designed to replace tired factory rubber, PFR5-4625 tightens up the back end, reduces unwanted movement and delivers sharper, more predictable handling on the E46 platform, including Touring models.

Manufactured by Powerflex from high-performance polyurethane, this solution resists oil, heat and ageing far better than OE rubber, keeping geometry consistent under load. Expect crisper throttle response, improved traction on acceleration, greater stability under braking and more even tyre wear, whether you drive on the road, fast-road or attend the occasional track day.

• Part number: PFR5-4625
• Application: BMW E46 3 Series, including Touring estate
• Location: Rear differential, front mounting position
• Diagram reference: 25
• Quantity in pack: 2 bushes
• Genuine Powerflex with Lifetime Warranty

Why choose this upgrade

• Reduces diff movement for a more connected rear end
• Improves cornering precision and straight-line stability
• Helps minimise wheel hop and tramp on hard launches
• Maintains alignment for prolonged tyre life
• Durable, oil-resistant material for long-term reliability
• Balanced NVH control for daily driving and spirited use

We have installed this kit many times in our workshop and it is a customer favourite for restoring confidence at the rear of the car. Drivers report a tighter feel, cleaner feedback and a noticeable reduction in the vague, floaty sensation that comes with ageing rubber mounts.

Fitting and support

Professional installation is recommended. For supply and fitting by specialists, contact MJ Modifications in Warwickshire for a quote: info@mjmodifications.co.uk.

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