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Powerflex
Powerflex for Porsche
EPTG Ltd (European Polyurethane Technologies Group) was formed in the UK in 1996 to take advantage of the significant advances made in the development of polyurethane in recent years.The company has wide experience in automotive suspension and chassis systems and combining these design skills with advanced polyurethane manufacturing techniques led to the development of a wide range of high performance, Porsche automotive polyurethane components now known the world over by the product name POWERFLEX.The company operates in a self-contained state-of-the-art factory, manufacturing everything in-house.
Choosing the Right Fit for Your Porsche
Where Powerflex is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, side/position, and connector type where relevant.
- Powerflex polyurethane bushes are chosen when Porsche owners want tighter handling, sharper response, and longer-lasting bush material than ageing rubber. Real-world reasons include curing vague steering, reducing wheel hop, improving alignment stability, and refreshing suspension without replacing whole arms in some cases.
- Increased NVH (noise/vibration/harshness), squeaks if not lubricated correctly, and binding if installed improperly. Poor ride or uneven behaviour is often caused by fitting too-stiff bushes in the wrong locations, worn mounts elsewhere, or skipping alignment after changes.
- Choose compounds and locations carefully to balance response against comfort, especially on road-driven Porsche models.
- Use the supplied or approved lubricant on Powerflex bushes and torque fixings at normal ride height to minimise the risk of squeaks and binding.
- Target the worst wear points first rather than replacing every bush at once, and plan a full alignment check after suspension changes.
Browse by Category
If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.
Suspension & Axle — Suspension and axle components for Porsche models, replaced to restore safe, predictable handling, braking stability and ride comfort where wear or age has affected performance.
Powerflex Polyurethane Bushes — Dedicated Powerflex polyurethane bushes for Porsche, used to tighten chassis control and replace ageing rubber so geometry stays more consistent under load.
Suspension Upgrades — Porsche suspension upgrade parts such as dampers, springs, anti-roll bars and mounts, allowing you to tune handling, body control and ride to suit road or track use.
Control Arms Front — Front control arms and related components for Porsche, replaced to correct geometry, cure knocks and restore precise steering response.
Powerflex Polyurethane Bushes — Powerflex-branded polyurethane bush solutions tailored to Porsche applications, ideal when you want a more direct feel and improved durability compared with tired rubber.
Explore Powerflex at Design911
View the current Powerflex range for Porsche at Design911, then filter by model and category to narrow down to the right parts.
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
The product you are viewing cross references to these numbers
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MKII GT3 2010-11
Stabilizer Bar Bush Rear - 18mm.
Drop Link Bush Rear - 18mm.
Fits - left and right side.

SET OF 4
Replacement for Porsche parts No. 91133379302
Fits:
Porsche 911 1974-77 Rear
Porsche 911 Turbo 1975-77
Porsche 914 1970-76 Rear
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-412-18
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
Size: 22mm
SET OF 4
Replacement for Porsche parts No. 91134388100

Fits:
Porsche 911 1984-86 3.2L and Turbo Front axle - Please choose by size
Porsche 911 1987-89 3.2L and Turbo Front axle
Click 'Zoom in' for large parts diagram.
Diagram Ref No 24
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFF57-403-22
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
Size: 16mm
SET OF 4

Fits:
Porsche 911 1974-77
Click 'Zoom in' for large parts diagram.
Diagram Ref No 23
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFF57-403-16
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Size: 20mm
Replacement for Porsche parts No. 91134379203
SET OF 4

Fits:
Porsche 911 1974-86 Front axle
Porsche 911 Turbo (930) 1975-86 Front axle
Click 'Zoom in' for large parts diagram.
Diagram Ref No 23.
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFF57-403-20
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
OEM Part Number: 90134722303/1

Fits:
Porsche 911 1965-89
Porsche 914 1970-76
Click 'Zoom in' for large parts diagram.
Diagram ref no 24
Powerflex. Replacing your car rubber bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFF57-405
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)

Set of 2 bushes which will fit 2 Engine mounts
Fits inside the Mounts of:
Porsche 911 1965-69 Engine Mount
Porsche 911 1970-86 Engine & 915 Gearbox Mount
Porsche 911 1986-89 Engine Mount
Porsche 930 1975-77 Engine Mount
Porsche 930 1978-89 Engine Mount
(not CS, not Cabrio)
Please note the price does not include mounts
Fits to No.8 on the diagram
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-415
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
SET OF 4

Fits:
Porsche 911 1965-67
Fits to No. 16 on the diagram.
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-411
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
SET OF 4 for 2 Arms.
OEM Part Number: 90133105900

Fits:
Porsche 911 1970-89
Click 'Zoom in' for large parts diagram.
Diagram Ref No 3
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.
PFR57-410
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Fits OE Wishbone Front (A-Frame) part numbers 91134190100 /91134190200.
SET OF 4 BUSHES

Fits:
Does not fit models made before 1969, fits all models 1969 to 1989.
Porsche 911 1969-89
Porsche 912
Porsche 914 1970-76
Fits to No. 14 on the diagram
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.
PFF57-401
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 914 (1970-1976)
SET OF 2

Replacement for Porsche parts No. 477501541
Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Fits:
Porsche 924 1976-88
Porsche 944 1982-91
Porsche 968 1992-95
Fits into the end of Diagram Ref no 4.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-222
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
Fitting the front anti roll bar link rod to the end of the anti roll bar on models using 25.5mm or 26.8mm anti roll bars. The bar diameter reduces at the end to 18mm where 95134379330PF fits.
Quantity: 2
Fits:
Porsche 944 1987-91 Turbo Front
Porsche 944 Turbo S 1988 Front
Porsche 968 1992-95 Front Cars with standard suspension not M030 cars
Please note price shown for Polyurethane bushes is for Qantity 2.
Click 'Zoom in' to display fitment diagram - Ref No 7.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFF57-206
The product you are viewing cross references to these numbers
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
Fitting the front anti roll bar link rod to the end of the anti roll bar on models using 20mm, 21.5mm, 23mm & 24mm anti roll bars. The bar diameter reduces at the end to 16.45mm where 95134379300PF fits.
Quantity: 2
Fits:
Porsche 944 1985-86 ALL Front
Porsche 944 1987-91 Front Cars with standard chassis (Not turbo etc)
Please note price shown is for quantity 2.
Click 'Zoom in' to display fitment diagram - Ref No 7.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFF57-205-16
The product you are viewing cross references to these numbers
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
Size: 18mm anti-roll bar diameter
Quantity: 2 (2 per car)
Porsche Reference to: 477411313B

Fits:
Porsche 911 1978-85 Rear axle
Porsche 911 TURBO 1978-85 Rear axle
Porsche 911 TURBO 1989 Rear axle
Porsche 944 1985-91 Rear axle Please choose by size
Porsche 964 RS Rear axle
Porsche 964 C4 Rear axle Please choose by size
Porsche 968 Rear axle Cars with Sport Suspension & tiptronic transmission
Porsche 993 C2/C4 Rear axle Cars with standard suspension
Porsche 993 C2S/C4S Rear axle Cars with Sport Suspension - Please choose by size
Click 'Zoom i' for large parts diagram.
Diagram Ref No 11.
Pack of 2. Two bushes per car
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFF57-209-18
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
Size: 20mm anti-roll bar diameter
Quantity: 2 (2 per car)
Porsche Reference to: 477411313C

Fits:
Porsche 911 SC 1974-83 Front axle
Porsche 911 TURBO 1985-88 Rear axle
Porsche 924 1976-77 Front axle
Porsche 924S 1986-88 Rear axle Cars with Sport Suspension
Porsche 944 1982-85 Front axle
Porsche 944 1985-88 Rear axle - Please choose by size
Porsche 964 1991-94 C2/C4 Rear axle Cars with manual transmission - Please choose by size
Porsche 993 C2S/C4S/RS Rear axle Cars with Sport Suspension - Please choose by size
Click 'Zoom in' to see pats diagram.
Diagram Ref No 17.
Pack of 2. Two bushes per car.
Powerflex. Replacing your car rubber suspension bushes with Polyurethane Suspension Bushes will give you:
- Better road holding
- Constant steering geometry
- Increased tyre life
- More responsive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFF57-209-20
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 924 2.0L 1976-79
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
Size: 21mm anti-roll bar diameter
Quantity: 2 (2 per car)
Porsche Refference to: 477411313D, 477411313M

Fits:
Porsche 911 1986-89 REAR AXLE
Porsche 964 C2 1989-94 REAR AXLE - Please choose by size
Porsche 993 Turbo REAR AXLE
Click 'Zoom in' for large parts diagram.
Diagram Ref No 11.
Pack of 2. Two bushes per car.
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.
PFF57-209-21
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 964 (911) C2 1989-93
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97