Powerflex PFR5-504-19 Rear Sway Bar/Anti-Roll Bar Bushes 19mm ID (Pair) – Polyurethane ARB Mounts for BMW 3 Series E46 (incl. xi/xd) & Z4 E85 E86 E89 | Stabiliser Bar Bushing Kit | OE 33551094551 33551138326

Polyurethane Rear Stabiliser Bush Kit 19 mm for BMW 3 Series E46 and Z4 E85 E86 E89 – Powerflex PFR5-504-19

Transform the rear end of your BMW with this performance polyurethane stabiliser bar bush kit from Powerflex. Part number PFR5-504-19 is engineered to replace tired rubber mounts on the rear bar, tightening up the chassis, sharpening response and boosting confidence on fast road driving. If you are hunting for rear sway bar bushes, rear roll bar clamp inserts, rear stabiliser mounts, or a 19 mm poly bush upgrade for BMW E46 and BMW Z4 E85 E86 E89, this is the direct-fit solution enthusiasts trust.

We have fitted these at MJ Modifications and the feedback is consistently excellent: crisper turn-in, flatter cornering, improved rear axle stability and a more planted feel on bumpy B-roads. Powerflex Road Series polyurethane offers long-lasting performance compared to ageing OEM rubber, helping reduce unwanted bar movement, maintain alignment and support more consistent tyre contact.

Why upgrade to Powerflex PFR5-504-19

• Poly bush upgrade for the rear stabiliser bar, 19 mm internal size
• Reduces compliance in the rear bar mounts for a more connected drive
• Ideal for fast road setups and track day preparation
• Helps minimise body roll and improves mid-corner stability
• Durable polyurethane resists oil, road salt and heat better than rubber
• Direct replacement design for factory rear bar brackets
• Great value handling upgrade with proven customer satisfaction

Popular search terms

BMW E46 rear stabiliser bush 19 mm, BMW 3 Series E46 sway bar bush kit, BMW Z4 E85 E86 rear bar bushings, Z4 E89 rear roll bar mounts, Powerflex rear poly bushes, performance suspension bushes BMW, rear bar clamp bush pair, chassis bush upgrade, ARB poly bush BMW, handling upgrade E46, polyurethane sway bar inserts.

Fitment

• BMW 3 Series E46: Compact, Saloon, Touring, Coupe, Convertible
• BMW E46 Xi / XD 4WD variants
• BMW Z4 E85 and E86 (2003–2009)
• BMW Z4 E89 (2009 onwards)

Size check

Internal diameter: 19 mm. Please confirm your rear bar diameter before ordering. Different models and packages may use different bar sizes.

Replaces OE references

• 33551094551
• 33551138326

What you receive

• 2 x rear stabiliser bar mounting bushes, 19 mm (one axle set)

Part number

PFR5-504-19 – Powerflex Road Series

Compatibility check before dispatch

We will verify fitment before shipping. Add your UK registration or the last 7 digits of your VIN at checkout and our team will confirm the correct application.

Professional fitting available

For installation, we recommend booking with MJ Modifications in Warwickshire. Request a fitting quote: info@mjmodifications.co.uk.

Diagram

Reference No. 4

Why buy from MJ Modifications

We are enthusiasts who fit and use the products we sell. Our customers love the immediate handling gains from this rear bar bush kit, and our support team is on hand to help you choose the right size for your car and arrange expert fitting if required.