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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.
Sold as a pair (both arms)

This part replaces OEM part number: 99333104700.
Fits:
Porsche 993 1993-95
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collectors car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-911H
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Sold as a pair (both arms)

This part replaces OEM part number: 99333104101.
Fits:
Porsche 993 1993-95
Powerflex Heritage Collection. For Modern Day Classics.
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collectors car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-912H
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Sold as a pack of 4 (both subframes)

This part fits into sub frame part numbers:
99333105100, 99333105180, 99333105200 & 99333105280.
Fits:
Porsche 993 1993-95
Powerflex Heritage Collection. For Modern Day Classics.
A range of bushes engineered for the road to compliment your classic car.
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collector's car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-920H
The product you are viewing cross references to these numbers
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Size: 19mm anti-roll bar diameter
Quantity: Pack of 2. Two bushes per car.

Fits:
Porsche 964 (1989 - 1994)
Porsche 993 (1994 - 1998)
Porsche 968 (1992-1995)
Porsche 944 inc S2 & Turbo (1985 - 1991)
Click 'Zoom in' for large parts diagram.
Diagram Ref No 17.
Powerflex Black Series - Designed for the Track - Ready to Race - Engineered to be the best.
Powerflex Black Series bushes are manufactured using a 95 Shore A compound to provide maximum control of chassis geometry. This compound can be up to 80% more resistant to load than standard rubber and 25% stiffer than our purple performance material.
If your requirements are purely for the ultimate in handling and chassis performance then Powerflex Black Series are unique, offering the most precise and accurate alignment for your chassis.
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.
PFF57-209-19BLK
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 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
- 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
SET OF 2 for both sides

Fits:
Porsche 964 Carrera 2/4, Turbo & RS 1989-1994
Fitting Instructions >> Click Here
Click 'Zoom in' for large parts diagram.
Fits to No 1 on the diagram.
Powerflex Heritage Collection. For Modern Day Classics.
A range of bushes engineered for the road to compliment your classic car.
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collector's car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-106H
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Replacement for OE Porsche part: 96437521101
Diagram Position: 21

This bush fits the following RWD vehicles:
Porsche 964 C2 1990-1994 Manual - Transmission type G50.03 / G50.04 / G50.05
Porsche 964 Turbo 1991-1992 Manual - Transmission type G50.52
Porsche 964 C2 1992-1994 Tiptronic - Transmission type A50.02 / A50.0
Porsche 993 C2 1994-1998 Manual - Transmission type G50.20 / G51.21
Porsche 993 Carrera RS 1995 Manual - Transmission type G50.31 / G50.32 / G50.33
Porsche 993 C2 1994-1998 Tiptronic - Transmission type A50.04 / A50.05.
Powerflex Heritage Collection. For Modern Day Classics.
A range of bushes engineered for the road to compliment your classic car.
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collector's car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-121H
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C2S 1994-97
This part includes an optional support washer with a built in insert to fit into the voided bush for quick and easy tuning of stiffness levels. This part replaces the original bush OE number: 99337521900 in bracket assembly OE number: 96437502301 found on AWD vehicles.
For an insert only please use PFR57-123.

This part fits the following vehicles:
Porsche 993 C4/C4S 1995-1998 Manual - Transmission type G64.20/G64.21
Porsche 993 Turbo 1995-1998 Manual - Transmission type G64.51/G64.52
Porsche 964 C4 1990-1994 Manual - Transmission type G64.00/01/02
OEM Part Number: 99337521900
OEM Part Number: 99337502300
OEM Part Number: 96437502301
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Powerflex Heritage Collection. For Modern Day Classics.
A range of bushes engineered for the road to compliment your classic car.
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collector's car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-122H
The product you are viewing cross references to these numbers
- Porsche 964 (911) C4 1989-93
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
For a replacement bush please use PFR57-122.

This part fits the following vehicles:
Porsche 993 C4/C4S 1995-1998 Manual - Transmission type G64.20/G64.21
Porsche 993 Turbo 1995-1998 Manual - Transmission type G64.51/G64.52
Porsche 964 C4 1990-1994 Manual - Transmission type G64.00/01/02
OEM Part Number: 99337521900
OEM Part Number: 99337502300
OEM Part Number: 96437502301
Click 'Zoom in' for large parts diagram.
Fits to no 1 on 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.
PFR57-123H
The product you are viewing cross references to these numbers
- Porsche 964 (911) C4 1989-93
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
For an insert only please use PFR57-126.
Replacement for OE Porsche part: 96437505502, 96437505580,

This bush fits the following RWD vehicles:
Porsche 964 C2 1990-1994 Manual - Transmission type G50.03/G50.04/G50.05)
Porsche 964 Turbo 1991-1992 Manual - Transmission type G50.52)
Porsche 964 C2 1992-1994 Tiptronic - Transmission type A50.02/A50.03
Porsche 993 C2 1994-1998 Manual - Transmission type G50.20/G51.21
Porsche 993 C2 1994-1998 Tiptronic - Transmission type A50.04/A50.05
Click 'Zoom in' for large parts diagram.
Diagram ref no 23
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collectors car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-125H
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C2S 1994-97
OEM Part Number: 96437505502
OEM Part Number: 96437505580
For a complete bush please use PFR57-125.

This bush fits the following RWD vehicles:
Porsche 964 C2 1990-1994 Manual - Transmission type G50.03/G50.04/G50.05)
Porsche 964 Turbo 1991-1992 Manual - Transmission type G50.52)
Porsche 964 C2 1992-1994 Tiptronic - Transmission type A50.02/A50.03
Porsche 993 C2 1994-1998 Manual - Transmission type G50.20/G51.21
Porsche 993 C2 1994-1998 Tiptronic - Transmission type A50.04/A50.05
Click 'Zoom in' for large parts diagram.
Fits to number 23 on 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.
PFR57-126H
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C2S 1994-97
Replacement for OE Porsche part: 96437507003, 96437507004

This bush fits the following RWD vehicles:
Porsche 964 C2 1992-1994 Triptronic - Transmission type A50.02/A50.03
Porsche 993 C2 1994-1998 Manual - Transmission type G50.20/G51.21/G50.32/G50.33
Porsche 993 C2 1994-1998 Tiptronic - Transmission type A50.04/A50.05
Click 'Zoom in' for large parts diagram.
Fits to no 16 on diagram.
Powerflex Heritage Collection. For Modern Day Classics.
A range of bushes engineered for the road to compliment your classic car.
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collector's car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-124H
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C2S 1994-97
This is an insert to fit into and fills the voids in the original rubber bush.
OEM Part Number: 96437507003
OEM Part Number: 96437507004
OEM Part Number: 96437507001
For a replacement bush please use PFR57-124.

This bush fits the following RWD vehicles:
Porsche 964 C2 1992-1994 Triptronic - Transmission type A50.02/A50.03
Porsche 993 C2 1994-1998 Manual - Transmission type G50.20/G51.21/G50.32/G50.33
Porsche 993 C2 1994-1998 Tiptronic - Transmission type A50.04/A50.05
Click 'Zoom in' for large parts diagram.
Fits to no 23 on Diagram
Powerflex Heritage Collection. For Modern Day Classics.
A range of bushes engineered for the road to compliment your classic car.
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collector's car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-127H
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C2S 1994-97
PAIR

Fits:
Porsche 964 1989-94
Porsche 993 1994-98
Click 'Zoom in' for large parts diagram.
Fits to No 12 on the diagram.
Powerflex Heritage Collection. For Modern Day Classics.
A range of bushes engineered for the road to compliment your classic car.
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collector's car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFF57-102H
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
SET OF 2 for both wishbones
Fits to Wishbone OEM Part Number: 96434101706 / 96434101707 / 96434101806
Fits to Wishbone OEM Part Number: 96434101807 / 96434101780 / 96434101782
Fits to Wishbone OEM Part Number: 96434101880 / 9643410182

Fits:
Porsche 964 1990-94
Porsche 993 1994-97
Click 'Zoom in' for large parts diagram.
Fits to No 12 on the diagram.
Powerflex Heritage Collection. For Modern Day Classics.
A range of bushes engineered for the road to compliment your classic car.
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collector's car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFF57-101H
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Size: 21mm anti-roll bar diameter
Quantity: 2 (2 per car)
Porsche Reference 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 Heritage Collection. For Modern Day Classics.
A range of bushes engineered for the road to compliment your classic car.
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collector's car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFF57-209-21H
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
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 Heritage Collection. For Modern Day Classics.
A range of bushes engineered for the road to compliment your classic car.
POWERFLEX Heritage Collection bushes are manufactured using modern day materials with properties biased for the road. These dark grey coloured bushes will improve any collector's car, whilst retaining the same standard appearance of a rubber bush.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFF57-209-20H
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