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DISPLAYING 1 to 13 (of 13 products)
PUBUSHKIT3
Product Information
Product Information
Powerflex Suspension Bush Upgrade Kit for Front & Rear. Replacement motorsport polyurethane bushes.

powerflex

Fits:
Porsche 996 1998-04

This Kit Contains:
1 set x PFR57507 Rear Control Arm Bushes
1 set x PFR57508 Rear Upper Arm Bushes Outer
1 set x PFR57509 Rear Upper Arm Bushes Inner
1 set x PFR57512 Rear Sub Frame Bushes
1 set x PFR57511 Rear Sub Frame Bushes
2 set x PFR57502 Lower Control Arm Bushes
2 set x PFR57503 Lower Control Arm Bushes

Please note these parts should be fitted by an engineer.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PUBUSHKIT3
PFR57-507
PFR57-508
PFR57-509
PFR57-512
PFR57-511
PFF57-502

The product you are viewing cross references to these numbers
PUBUSHKIT1
Product Information
Product Information
PowerFlex Upper link arm bush, Rear. 

powerflex

Replacement motorsport rear upper link arm polyurethane bushes.

Fits:
Porsche 996 1998-04

This kit contains a set of 8 bushes for upper rear link arms:
4 x PFR57509 Inner bushes
4 x PFR57508 Outer bushes

Please note these parts should be fitted by an engineer.

Fits to No 8 on the diagram.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PUBUSHKIT1
PFR57-508
PFR57-509

The product you are viewing cross references to these numbers
PFR57-507
Product Information
Product Information
PowerFlex Control Arm Bush Rear.


powerflex

Replacement motorsport rear control arm polyurethane bushes. fits Control arms 99633104506/08/10/12 & 99733104504

Set of 2 for two lower rear control arms
Please note these parts should be fitted by an engineer.

Fits:
Porsche 986 Boxster 1994-04
Porsche 996 1998-04 
Porsche 997 2005>>(not GT3RS/4.0 or GT2RS)

Click 'Zoom in' for large parts diagram.
Diagram Ref No 7.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFR57-507
99733104504
PFR57-507
PFR57507
99633104506
99633104508
99633104510
99633104512
99633104507
99633104604
99633104606
99633104608
99633104610
99633104612
99633104607

The product you are viewing cross references to these numbers
PFR57-531
Product Information
Product Information
Powerflex Gearbox Front Mounting Bush Insert Kit.
Fits 996 & 997 vehicles with the twin mounting bracket (Replacement for Porsche parts number 99737503303) at the end of the gearbox.

Fits:
Porsche 996 / 997 all 3.6 & 3.8 Tiptronic models, Turbo models Manual & Tiptronic, GT2 & GT3.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFR57-531
99737503303
9963750303
99637533103
99637503302
99737503302
99737503301
99637503303

The product you are viewing cross references to these numbers
PFF57-502/3K
Product Information
Product Information
PowerFlex Lower Arm Bush Repair Kit.  (Metal arm not included) 

Replacement bush kit for Porsche lower arms in polyurethane.

This kit fits ONE lower arm front or rear.
Includes 1 x Centre Bush & 1 x Rear Arm Bush.
Please note these parts should be fitted by an engineer.

Fits:
Front or Rear Arms
Porsche 986 Boxster 1994-04
Porsche 996 1998-04
Set of 2 for ONE lower arm which can be fitted either at the front & rear arms. Please note these parts should be fitted by an engineer.

Fits:
Rear Arms Only:
Porsche 987 Boxster 05>>
Porsche 987C Cayman 05>>
Porsche 997 05>>
Set of 2 for ONE lower arm which ONLY FITS REAR arms on 987 / 997 models. Please note these parts should be fitted by an engineer.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFF57-502
99733105303
99634105317
99634105307
99634105316
99634105306
99634105306
99634105318
99733105301
99733105303
99634105314
99634105319
99634105305

The product you are viewing cross references to these numbers
PFF57-502::2
Product Information
Product Information
PowerFlex Lower arm centre bush.

powerflex

Fits:
Front or Rear Arms
Porsche 986 Boxster 1994-04
Porsche 996 1998-04
Set of 2 for TWO lower arms which can be fitted either at the front & rear arms. Please note these parts should be fitted by an engineer.

Fits:
Rear Arms Only:
Porsche 987 Boxster 05>>
Porsche 987C Cayman 05>>
Porsche 997 05>>
Set of 2 for TWO lower arms which ONLY FITS REAR arms on 987 / 997 models. Please note these parts should be fitted by an engineer.

SET OF 2 for TWO lower arms front & back
Please note these parts should be fitted by an engineer.

Diagram ref :
no. 2 - front / no. 5 - rear

OEM Part Number: 996341053 / 996341941 / 997341041
OEM Part Number: 997341042 / 997341041
OEM Part Number: 997331053


Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:

- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsitive steering
- Longer service life of suspension components



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFF57-502
PFF57-502
99733105303
99634105317
99634105319
99634105305
99634105306
99634105307
99634105316
99733105300
99733105304
99733105302
99733105301
99634105317
99634105318

The product you are viewing cross references to these numbers
PFF57-503
Product Information
Product Information
PowerFlex Lower Arm Rear Bush

Replacement motorsport lower arm rear polyurethane bushes.

Set of 2 for TWO lower arms front & back
Please note these parts should be fitted by an engineer.

Fits:
Front or Rear Arms
Porsche 986 Boxster 1994-04
Porsche 996 1998-04
Set of 2 for TWO lower arms which can be fitted either at the front & rear arms. Please note these parts should be fitted by an engineer.

Fits:
Rear Arms Only:
Porsche 987 Boxster 05>>
Porsche 987C Cayman 05>>
Porsche 997 05>>
Set of 2 for TWO lower arms which ONLY FITS REAR arms on 987 / 997 models. Please note these parts should be fitted by an engineer.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFF57-503
PFF57-503
99634105307
99634105319
99634105316
99634105317
99634105306
99634105305
99634105318
99733105301
99733105302

The product you are viewing cross references to these numbers
PFF57-501-22.5
Product Information
Product Information
Polyurethane has been with us as a specialised plastic for some thirty years. However recent advances have now made it possible to engineer very special properties into this exciting material. Suspension bushes are some of the most highly stressed components fitted to a motor car. They undergo enormous strains and in the most arduous of conditions with no maintenance or lubrication.

IMPORTANT NOTES: Front inner track control arm inner bush (diagram position 3) can be replaced with either PFF57-503 non adjustable or PFF57-801 which gives on-car camber adjustment.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFF57-501-22.5
PFF57-501-22.5
PFF57-501-23
PFF57-501-23.5
PFF57-503
PFF57-801
PFF57-502
PFF57-503

The product you are viewing cross references to these numbers
PFR57-507::1
Product Information
Product Information
Polyurethane has been with us as a specialised plastic for some thirty years. However recent advances have now made it possible to engineer very special properties into this exciting material. Suspension bushes are some of the most highly stressed components fitted to a motor car. They undergo enormous strains and in the most arduous of conditions with no maintenance or lubrication.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFR57-507
PFR57-507
PFR57-508
PFR57-509
PFR57-510-19
PFR57-510-20
PFR57-510-21
PFR57-511
PFR57-512

The product you are viewing cross references to these numbers
PFR57-512
Product Information
Product Information
PowerFlex Sub Frame Bush Rear.

Replacement motorsport rear sub frame REAR polyurethane bushes.

Set of 4 for both sub frames - rear left & rear right
Please note these parts should be fitted by an engineer.

Fits:
Porsche 996 1997-05 all models

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFR57-512
PFR57-512
99633105101
99633105500
99633105501
99633105201
99633105600
99633105602
99633105502
99633105601

The product you are viewing cross references to these numbers
PFR57-511
Product Information
Product Information
PowerFlex Rear Sub Frame Bush Front.

Replacement motorsport rear sub frame FRONT polyurethane bushes.

Set of 2 for two sub frames rear left & right
Please note these parts should be fitted by an engineer.

Fits:
Porsche 996 1997-05 all models

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFR57-511
99633105101
99633105500
99633105501
99633105502
99633105201
99633105600
99633105601
99633105602

The product you are viewing cross references to these numbers
PFR57-509
Product Information
Product Information
Upper link arm INNER bushes, Rear. 

Replacement motorsport Upper Link Arm INNER Rear in polyurethane.

This kit contains a set of 4 bushes for upper rear link arms:
4 x PFR57509 INNER bushes

Please note these parts should be fitted by an engineer.

Fits:
Porsche 996 1998-04

Fits to No 8 on the diagram.

Please note:
On some early 997 models (pre 2006) there is no supporting lug on the upright to the outside faces of the outer bushes. For these models use 4 x PFR57-508 outer bush & 4 x PFR57-509 for the inner bush. For cars with lugs use 8 x PFR57-509.

OEM Part Number: Fits wishbone OE Nr 996331047 / 997331047

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFR57-509
PFR57508
PFR57509
99634704702
99634704703
99634704705
99634704706
99733104700
99734704701

The product you are viewing cross references to these numbers
PFR57-508
Product Information
Product Information
PowerFlex Upper Link Arm OUTER Bushes Rear in polyurethane.
Size: 22mm

This kit contains a set of 4 bushes for upper rear link arms:
4 x PFR57508 Outer bushes

Please note these parts should be fitted by an engineer.

Fits:
Porsche 996 1998-04

Fits to No 8 on the diagram.

PLEASE NOTE:
On some early 997 models (pre 2006) there is no supporting lug on the upright to the outside faces of the outer bushes. For these models use 4 x PFR57-508 outer bush & 4 x PFR57-509 for the inner bush. For cars with lugs use 8 x PFR57-509. PFR57-508 fits 22mm width arms, for 19.5mm width arms please use PFR57-1508.

OEM Part Number: Fits wishbone OE Nr 996331047 / 997331047

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PFR57-508
PFR57508
PFR57509
99633104702
99633104703
99633104705

The product you are viewing cross references to these numbers
DISPLAYING 1 to 13 (of 13 products)
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About Powerflex Polyurethane Bushes

Powerflex Polyurethane Bushes

At Design911, we offer a dedicated range of Powerflex polyurethane bushes for Porsche models, ideal for owners looking to refine suspension feel, upgrade tired rubber and get more out of their suspension upgrades without compromising everyday usability.

Powerflex Bushes backed by a Lifetime Warranty

Powerflex are proud to offer a Lifetime Warranty on the entire range of products they manufacture. Soft, ageing or cracked rubber bushes allow unwanted movement in the suspension, which can lead to imprecise handling, uneven tyre wear and instability under braking or cornering. Powerflex polyurethane bushes are engineered to control this movement far more consistently than tired rubber, giving a more precise, repeatable feel.

Why do Porsche Powerflex Polyurethane Bushes matter?

Polyurethane bushes sit at the heart of your Porsche’s suspension, controlling how components move relative to each other. As original rubber bushes age, they soften, split or deform, allowing geometry to change under load. This can leave the car feeling vague and less composed, even if major parts such as dampers and springs are in good condition. Upgrading key locations to Powerflex bushes helps the suspension maintain its intended alignment for longer, complementing other suspension upgrades and giving the chassis a more tied-down feel in everyday driving.

  • Keep your Porsche feeling tight and controlled rather than loose or vague
  • Help suspension and steering geometry stay more consistent under braking and cornering
  • Reduce annoying symptoms from worn bushes such as clunks, instability and uneven tyre wear
  • Support long-term enjoyment, especially on upgraded or enthusiast-driven Porsche models

Common options & kits

Individual replacement bushes

Specific bushes for one arm or location, ideal when you have identified a particular weak point or MOT advisory and want a targeted improvement.

  • Good for solving a localised knock, movement or alignment issue
  • Lets you improve high-stress points first (for example front control arm or anti-roll bar bushes)
  • Useful when building up a full suspension refresh in stages

Matched axle sets or pairs

Powerflex bushes supplied in sets so both sides of the axle are renewed together, keeping behaviour consistent left to right.

  • Balanced feel and response across the car
  • Helps avoid uneven wear or geometry from a mix of new and tired bushes
  • A sensible choice when refreshing the front or rear suspension as a package

Complete bush packages

Grouped kits covering multiple arms and mounting points, popular for full suspension upgrades, restorations or track-focused builds.

  • Brings tired suspensions back to a tight, precise feel in one hit
  • Ensures related bushes are matched in material and stiffness
  • Ideal when combining with new dampers, springs, anti-roll bars or other Porsche suspension upgrades

Brands available in this category

For this category we stock a wide choice of trusted brands for Porsche models. You can also browse and filter by brand on this page to focus on your preferred manufacturers.

Kits

Design911 offers an extensive selection of package deals for Porsche parts, providing an ideal solution for enthusiasts looking to upgrade, maintain or personalise their Porsche. These kits can include complementary components around the bushes, helping ensure compatibility and convenience when planning a suspension refresh.

Powerflex

Powerflex is a specialist in polyurethane suspension and chassis components, manufacturing in a dedicated UK facility. Their Porsche bushes are designed to combine durability with carefully chosen stiffness levels, so you can select options that suit fast-road, daily use or more focused applications, all supported by their Lifetime Warranty.

When should you review or replace your Porsche Powerflex polyurethane bushes?

Checking bushes and considering polyurethane upgrades goes hand in hand with wider Porsche suspension work. Even if the car still passes an MOT, aged rubber components can hold back the benefit of new dampers, springs or anti-roll bars.

  • You notice clunks, knocking, or a loose feeling through the chassis over bumps
  • The car feels vague on turn-in, wanders on the motorway or needs frequent steering correction
  • Uneven tyre wear or repeated alignment changes suggest geometry is not being held accurately
  • You are upgrading other suspension parts and want the underlying bushes to match the sharper setup

If any of these apply, it is a good time to assess your existing bushes and consider where Powerflex polyurethane could offer a worthwhile improvement for your Porsche.

Explore Porsche Powerflex polyurethane bushes with Design911

Browse Powerflex polyurethane bushes for Porsche at Design911 – from individual replacements for problem areas to more comprehensive bush packages that support full suspension upgrades. Use the filters by model, location and brand to pinpoint the right components for your Porsche build.

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