Powerflex Rear Shock/Strut Top Mount Bracket & Polyurethane Bush Kit 10mm Pin – BMW E46 3 Series 1998-2006 (Saloon/Coupe/Touring) – RSM Rear Damper Upper Mount Upgrade | Shock Tower Mount/Top Hat | PFR5-5630

Rear Damper Upper Mount Bracket and Poly Bush 10 mm for BMW E46 3 Series 1998-2006 — PFR5-5630-10

Transform the way your E46 drives with this uprated rear damper upper mount and polyurethane bush set. Part number PFR5-5630-10 replaces tired rubber at the top of the rear struts, giving your BMW sharper chassis control, cleaner traction and far better stability on B‑roads, motorways and track days.

Engineered by Powerflex, this 10 mm rear damper mount solution tightens up the back end of the car by cutting unwanted movement at the shock tower. Expect crisper turn‑in, more predictable behaviour in quick direction changes and braking that feels planted. We run these bushes on our own builds and customer cars and the feedback is consistently excellent for fast road use and spirited driving.

Why this upgrade hits the sweet spot

• Stiffer polyurethane for precise rear axle control and improved response
• Helps maintain alignment under load for better tyre wear and grip
• Resists oil, heat and ageing far better than OEM rubber
• Bracket included for a clean, OE‑style installation with performance gains
• Quiet and refined for daily driving while delivering a sportier feel
• Backed by the Powerflex Lifetime Warranty

Compatibility and sizing

Designed for BMW 3 Series E46 models from 1998 to 2006, including Saloon, Coupé and Touring. Not suitable for Convertible bodies. This version is for rear damper pins measuring 10 mm.

Typical 10 mm rear damper pin brands include:

• BMW OE, AST, Bilstein HD and Sport, Bilstein PSS coilovers
• FK, H&R, Koni Sport, KW V1 V2 V3, ST Suspensions

12 mm examples often include JRZ RS and some Tein coilovers. If unsure, measure the damper shaft to confirm whether PFR5-5630-10 or the 12 mm variant PFR5-5630-12 is correct for your setup. Diagram reference: 30.

What you get

• Part number: PFR5-5630-10
• Application: BMW E46 rear damper upper mounting point
• Pin size: 10 mm
• Contents: 2 polyurethane bushes plus mounting bracket assembly
• Warranty: Powerflex Lifetime Warranty

Real‑world results

Common issues this kit helps resolve include rear end float, tramlining, nervous behaviour over bumps, and uneven tyre wear. The upgrade gives the car a more connected feel without harshness, keeping your E46 enjoyable on the road while adding confidence for fast driving.

Fitting service

Want it installed properly first time? Book professional fitting with MJ Modifications in Warwickshire. Request a quote: info@mjmodifications.co.uk

Cross‑references

Useful OE search numbers: 33521092362, 33526779670

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