Powerflex
BMW 3 Series E9* Sedan / Touring / Coupe / Conv Suspension Bushes
BMW 3 Series E9* Sedan / Touring / Coupe / Conv Suspension Bushes
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Powerflex suspension bushes for the BMW 3 Series E9* Sedan / Touring / Coupe / Conv are polyurethane replacements for the original rubber bushes. They are available in Road Series and Black Series, with a fitting diagram showing every bush position and part number.
Overview
Rubber suspension bushes soften, split and let the suspension move out of position as they age. Powerflex polyurethane bushes control that unwanted flex, which keeps the BMW 3 Series E9* Sedan / Touring / Coupe / Conv's suspension geometry where it should be. Powerflex says this prolongs tyre life, improves performance and increases safety on the road. Every bush is made in-house by Powerflex, a UK manufacturer formed in 1996.
Key features
- Polyurethane replacements for the original rubber suspension bushes
- Reduces unwanted suspension flex for sharper, more consistent handling
- Helps maintain suspension geometry and prolong tyre life
- Road Series compounds matched to each bush position, from 65A to 95A
- Black Series 95 Shore A compound for track and motorsport
- Fitting diagram for each range showing every bush position
- Lifetime warranty on road-use parts (Black Series and track use excluded)
Specification
- Make: BMW
- Vehicle: BMW 3 Series E9* Sedan / Touring / Coupe / Conv
- Ranges available: Road Series and Black Series
- Material: polyurethane
- Fitting diagram: included for each range
- Warranty: lifetime on Road Series for road use; Black Series excluded
Fitment notes
Road Series
- PFR5-419, PFR5-421 and PFR5-423 are void inserts to be used with the original rubber bushes.
- PFR5-420 and PFR5-422 are complete replacements for the original rubber bushes.
- PFR5-421 fits all models up to 07/2005 and Automatic models only from 07/2005 onwards.
- PFR5-423 fits all diesel-engined E91 Touring models. For all other petrol models, use PFR5-421.
- PFR5-1220 is a complete replacement bush for non-M models to raise the front of the rear subframe by 9mm providing the same anti-squat characteristic during acceleration as featured on M model vehicles. It is recommended to be used in conjunction with PFR5-422P.
- PFF5-4020 fits vehicles with N54 and N55 engines only.
- PFF5-470 fits vehicles with manual transmission only.
Black Series
- PFR5-419BLK, PFR5-421BLK and PFR5-423BLK are void inserts to be used with the original rubber bushes.
- PFR5-420BLK and PFR5-422BLK are complete replacements for the original rubber bushes.
- PFR5-421BLK fits all models up to 07/2005 and Automatic models only from 07/2005 onwards.
- PFR5-423BLK fits all diesel-engined E91 Touring models. For all other petrol models, use PFR5-421BLK.
- PFR5-1220BLK is a complete replacement bush for non-M models to raise the front of the rear subframe by 9mm providing the same anti-squat characteristic during acceleration as featured on M model vehicles. It is recommended to be used in conjunction with PFR5-422BLK.
- PFF5-4020BLK fits vehicles with N54 and N55 engines only.
- PFF5-470 fits vehicles with manual transmission only.
Heritage Collection
Who it's for
Road Series for everyday and fast-road driving; Black Series for track days, sprints, hill climbs and circuit racing. It suits owners of the BMW 3 Series E9* Sedan / Touring / Coupe / Conv who want tighter, more precise handling and bushes that outlast rubber. Check the fitting diagram and your vehicle details before you order.
Frequently asked questions
Which Powerflex range should I choose for my BMW 3 Series E9* Sedan / Touring / Coupe / Conv?
Road Series suits road and fast-road use. Black Series uses a firmer 95 Shore A compound for track and motorsport. Choose the range that matches how you use the car.
Are Powerflex bushes covered by a warranty?
Powerflex offers a lifetime warranty to the original purchaser when bought through an authorised distributor. Parts used for track, motorsport or competition, and part numbers ending in BLK (Black Series), are excluded. Source: Powerflex lifetime warranty terms. Checked 9 November 2026.
Will polyurethane bushes make the ride harsher?
Polyurethane is firmer than rubber, so you will feel the car respond more directly. Road Series kits use different compounds for different positions, from 65A to 95A, to balance control with comfort. Black Series is the firmest at 95 Shore A.
How do I know which bushes I need?
Use the fitting diagram for your chosen range. It numbers every bush position on the BMW 3 Series E9* Sedan / Touring / Coupe / Conv and gives the matching Powerflex part number, so you can replace a single worn bush or the whole set.
Is there anything to check before ordering?
Yes. Read the fitment notes above, as some parts only fit certain years or specifications of the BMW 3 Series E9* Sedan / Touring / Coupe / Conv.
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