Powerflex PFR5-4617 Polyurethane Rear Upper Link/Control Arm/Wishbone Inner Bush Kit (Pair) for BMW X3 E83 2003-2010 | Rear Camber Arm Inner Mount Bushings | Suspension Upgrade | Replaces OEM 33321092247

Powerflex Performance Bushing Set for BMW X3 E83 2003 to 2010 - Rear Upper Link Inner Mounts - PFR5-4617

Give your E83 chassis the precision it deserves. Powerflex PFR5-4617 replaces the soft factory inner mounts on the rear upper link, firming up the rear axle, holding alignment under load and delivering a more connected drive. Expect crisper turn in, better mid-corner composure and more consistent tyre contact on UK roads in all weather.

We use these in our own workshop builds and on customer vehicles, and the feedback is consistently positive. Drivers report a more planted rear end, improved confidence on B roads and more predictable behaviour during hard braking and quick direction changes. Backed by the Powerflex Lifetime Warranty, this is a fit once and forget upgrade.

Fitment and essentials

• Vehicle: BMW X3 E83, model years 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
• Location: Rear upper link inner mounts - also known as rear upper wishbone inner bushes or rear camber arm inner bushes
• Part number: PFR5-4617
• OEM reference: 33321092247
• Diagram reference: 17
• Contents: 2 bushes - sold as a pair
• Warranty: Powerflex Lifetime Warranty
• Material: Durable polyurethane for long service life and consistency

Why upgrade to polyurethane on the rear upper link

• Maintains camber and toe geometry during cornering for predictable grip and traction
• Reduces unwanted movement compared with ageing rubber for sharper steering response
• Helps combat uneven tyre wear by stabilising the contact patch
• Resists oil, salt and road grime for durability through daily use
• Minimal increase in cabin noise for a performance focused but road friendly feel
• Cost effective long term solution versus repeated OEM rubber replacements

What you will feel

More precise turn in, steadier rear end support over bumps, cleaner exits as power is applied and a more predictable chassis on fast sweeping roads. If your X3 feels vague or wanders under braking, freshening the rear upper link inner mounts is a proven fix and upgrade in one step.

Fitting and setup

Professional installation is recommended and a four wheel alignment after fitting will maximise the benefit. MJ Modifications offers expert fitting at our Warwickshire workshop. For a quote email info@mjmodifications.co.uk.

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