Powerflex PFR5-723 Polyurethane Rear Subframe/Cradle Front Mount Insert Bush for BMW 5 Series E60 E61 & 6 Series E63 E64 (2003-2010) xDrive AWD | Rear Axle Carrier Polybush Suspension Bushing Upgrade | Replaces OE 33316770826

PFR5-723 Polyurethane Rear Cradle Front Mount Insert for BMW E60 E61 E63 E64

Transform the way your BMW feels on the road with this Powerflex PFR5-723 rear axle carrier front mount insert. By filling the voids in the original rubber mounting, this polyurethane insert controls deflection in the rear carrier, tightening up the chassis and delivering a cleaner, more confident drive. Expect crisper turn-in, improved stability in fast corners and a more planted rear end on both daily and fast-road use.

We have installed these in-house and the feedback from our BMW 5 Series and 6 Series customers is consistently positive. Drivers report a more connected rear axle, reduced rear-end vagueness and better composure over uneven surfaces without a harsh ride.

Key advantages

• Limits rear carrier movement for predictable handling and better high-speed stability
• Sharper steering response and improved rear-end control under acceleration and braking
• Helps reduce premature tyre wear by keeping geometry more consistent
• Ideal fast-road upgrade with minimal NVH increase compared to solid replacements
• Cost-effective improvement that works with the factory rubber mount
• Direct-fit insert design for quick installation

What it is

This is an insert that fits into the voiding of the existing OE rear sub-frame front mount to reduce movement. It is not a full replacement bush.

For a complete replacement bush, use part number PFR5-720.

Part numbers

• Powerflex part: PFR5-723
• OE cross reference: 33316770826

Compatibility

• BMW 5 Series E60 Saloon 2003 to 2010
• BMW 5 Series E61 Touring 2003 to 2010
• BMW 5 Series E60 E61 xDrive all-wheel-drive models 2003 to 2010
• BMW 6 Series E63 Coupé 2003 to 2010
• BMW 6 Series E64 Convertible 2003 to 2010

Kit contents

• 2 x insert pieces
• 2 inserts required per vehicle

Installation and support

We offer professional fitting at MJ Modifications in Warwickshire. Request a quote: info@mjmodifications.co.uk

Want us to double-check fitment before dispatch? Add your UK registration or the last 7 of your VIN at checkout and we will confirm compatibility.

Download the installation guide:
Powerflex PFR5-723 fitting instructions

Why this upgrade makes sense

The factory rubber mounting has voids to aid comfort, but that compliance allows the rear sub-frame to shift under load. By filling those voids with a high-quality polyurethane insert, you reduce unwanted movement, keeping alignment steadier for more confident cornering and a cleaner, more precise feel from the rear axle. Perfect for spirited road driving, track-curious owners or anyone chasing a tighter BMW driving experience.

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Manufactured by

Powerflex Road Series