Powerflex
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.

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 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.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-121BLK
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

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 responsitive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-123
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

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. 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.
PFR57-122
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

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. 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.
PFR57-127
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.
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.
PFR57-126
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

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. 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.
PFR57-125
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. 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.
PFR57-124
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: 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. 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.
PFR57-121
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

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. 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.
PFR57-920
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 Black Series bushes are manufactured using our Black 95 Shore A compound to provide maximum control of chassis geometry. They are designed for the Track, ready to Race and are engineered to be the best.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-912BLK
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: 99333104700.
Fits:
Porsche 993 1993-95
POWERFLEX Black Series bushes are manufactured using our Black 95 Shore A compound to provide maximum control of chassis geometry.
They are designed for the Track, ready to Race and are engineered to be the best.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-911BLK
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: 99333104502.
Fits:
Porsche 993 1993-95
POWERFLEX Black Series bushes are manufactured using our Black 95 Shore A compound to provide maximum control of chassis geometry.
They are designed for the Track, ready to Race and are engineered to be the best.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-910BLK
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
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.
PFR57-912
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)

Fits:
Porsche 993 1993-95
This part replaces OEM part number: 99333104700.
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.
PFR57-911
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: 99333104502.
Fits:
Porsche 993 1993-95
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.
PFR57-910
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 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.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-920BLK
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