Powerflex PFR5-4626 Polyurethane Rear Differential Mount/Bush for BMW E46 3 Series Compact (316ti 318ti) – Final Drive Bushing Polybush Urethane Performance Upgrade Replacement

Powerflex PFR5-4626 Polyurethane Rear Final Drive Mount for BMW E46 3 Series Compact

Refresh the rear end of your BMW E46 Compact with the Powerflex PFR5-4626 polyurethane final drive mount. This uprated polybush replaces the ageing factory rubber at the rear mounting point of the differential, controlling twist under load for crisper responses, better traction and a more planted feel on road or during spirited driving.

If your E46 Compact feels vague, clunks on throttle changes or shows uneven tyre wear, this simple upgrade tightens everything up. Polyurethane resists deformation far better than old rubber, keeping alignment consistent and helping the driveline work efficiently without the unwanted flex that saps confidence.

Why enthusiasts choose this upgrade

• Locks down diff movement for improved launch traction and predictable corner exits
• Sharper throttle response with reduced wheel hop and squat
• More consistent geometry under braking and acceleration for confident handling
• Durable, fit-and-forget solution that outlasts standard rubber
• Formulated polyurethane balances performance with controlled NVH
• Backed by the Powerflex Lifetime Warranty

Key details

• Part number: PFR5-4626
• Position: Rear final drive mounting - rear location
• Vehicle: BMW 3 Series E46 Compact
• Diagram reference: 26
• Quantity in pack: 1 bush
• Warranty: Lifetime Warranty

Proven on our cars and with our customers

We run Powerflex bushes on our own builds and customer vehicles, and the E46 Compact diff mount is a standout. Feedback is consistently positive, with drivers noting a tighter rear end, cleaner power delivery and a more connected drive without harshness.

Fitting and support

Professional installation recommended. For supply and fitting, choose MJ Modifications in Warwickshire. Request a fitting quote by emailing info@mjmodifications.co.uk.

Common search terms

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