Powerflex BMW Rear Upper Wishbone/Control Arm Inner Bush PFR5-4617 - Road Series Polyurethane - Fits E46 (incl. M3), X3 E83, Z4 E85/E86/E89, Z4M,

Powerflex PFR5-4617 Poly Bush Kit for BMW Rear Upper Arm - Road Series

Refresh the back end of your BMW with the PFR5-4617 polyurethane bushing set. This Road Series upgrade replaces ageing factory rubber on the rear upper arm inner mounting point with tough, performance-focused poly, helping the rear axle hold its geometry under load for a planted, confidence-inspiring drive. Expect crisper response on B-roads, improved straight-line stability and more predictable behaviour through fast corners, as well as better tyre wear thanks to steadier camber and toe control.

We supply and install these regularly and our customers love the transformation in rear-end control on daily-driven and fast-road cars. Proven reliability, excellent value and consistent alignment make this one of the smartest suspension refreshes you can do on E-chassis BMWs.

Key advantages

• Helps keep rear geometry stable during acceleration, braking and cornering
• Sharper chassis response and traction without compromising road manners
• Durable polyurethane resists wear and degradation far better than tired rubber
• Can reduce uneven tyre wear by limiting unwanted arm movement
• Direct-fit replacement with no permanent modifications

What is included

• 2 x Powerflex rear upper arm inner bushes
• Quantity required per vehicle: 2
• Diagram reference: 17

Part numbers

• Powerflex part number: PFR5-4617
• OE cross-reference: 33321092247
• Range: Powerflex Road Series

Vehicle applications

Designed for the rear upper arm inner position on the following models:

• BMW E36 including M3 1990-1998
• BMW E46 Compact
• BMW E46 M3 including CSL
• BMW E46 Saloon, Touring, Coupe, Convertible
• BMW E46 Xi and XD 4WD
• BMW X3 E83 2003-2010
• BMW Z1 1988-1991
• BMW Z4 E85 and E86 2003-2009
• BMW Z4 E89 2009 onwards
• BMW Z4M E85 and E86 2006-2009

Perfect for enthusiasts seeking

• Rear camber arm inner bush replacements for BMW performance builds
• Poly bush upgrade for E46, E36, Z4 and X3 rear suspension
• BMW rear upper link inner bushing to reduce compliance and play
• Road-friendly bushing kit that stands up to spirited and fast-road use
• Consistent alignment for improved grip and braking stability

Popular search terms

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Installation and support

• Professional fitting and a four-wheel alignment are strongly recommended
• Fitting available at MJ Modifications in Warwickshire - request a quote at info@mjmodifications.co.uk
• Manufacturer instructions: Download PDF

Pre-dispatch fitment check

For a perfect match, we will verify compatibility before shipping. Please provide your vehicle registration for UK cars or the last 7 of the VIN at checkout.

Why buy from us

We install performance parts every day and have used this exact kit on customer cars and our own builds. Feedback is consistently positive for rear-end stability, predictable handling and value for money. Buy with confidence and enjoy a tighter, more composed BMW.