Powerflex Black Series 95A Polyurethane Rear Differential Mount Bush PFR5-4626BLK for BMW 3 Series E46 1998-2006 & Z4 E85/E86 2003-2009 – Final Drive/Diff Carrier Mount, Pumpkin Bushing – OE 33173449082 33176751808 inc E46 xi/XD 4WD

Uprated Rear Final Drive Mounting Bush for BMW 3 Series E46 and BMW Z4 E85 E86

Take control of rear axle movement with this race-hardness polyurethane rear final drive mounting bush. Built in Powerflex’s toughest Black Series compound, it secures the differential housing under load for sharper response, better traction and consistent handling on fast road, circuit and competition builds.

Part Number: PFR5-4626BLK

Why enthusiasts choose this upgrade

• 95A Shore Black Series poly bush for uncompromising drivetrain location.
• Minimises final drive movement on throttle and corner exit for cleaner power delivery.
• Helps reduce wheel hop and axle tramp for improved grip and stability.
• Resistant to oil, fuel and road grime for long service life versus ageing rubber mounts.
• Direct fit replacement at the rear mounting point of the differential carrier.
• Ideal for track days, sprint, drift and time attack where precision matters.

We run this bush on our own builds and customers consistently report a tighter rear end and more predictable feedback without the vagueness of tired OEM rubber.

Vehicle fitment

Designed for the following BMW platforms and body styles:

• BMW 3 Series E46 1998 to 2006 - Compact, Saloon, Touring, Coupe, Convertible
• BMW E46 4WD variants - xi and XD models
• BMW Z4 E85 and E86 2003 to 2009 - Roadster and Coupe

Replaces BMW OE references

• 33173449082
• 33176751808

What you receive

• 1 x rear final drive mounting bush
• Quantity required per car: 1

Diagram reference: 26

Fitting support

Professional installation recommended. Book fitting with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Compatibility check before dispatch

Add your UK registration or last 7 of your VIN at checkout and we will confirm suitability for your exact model prior to shipping.

Installation guide

Download official instructions: PFR5-4626BLK Fitting Guide

Search-friendly terms

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At a glance

Powerflex Black Series rear final drive mounting bush. Part Number PFR5-4626BLK. A proven polyurethane upgrade that tightens up the rear of BMW E46 and BMW Z4 E85 E86 for confident cornering, improved traction and robust reliability under hard use.