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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design91.uk/images/schemaLogo.png https://www.design91.uk/images/schemaLogo.png +443456003478 https://www.design91.uk Facebook Instagram

DISPLAYING 1 to 6 (of 6 products)
PFF57-703
Product Information
Product Information
Powerflex Black Series Front Anti Roll Bar Bush.
Sold as a pair 

Porsche Reference to: 92834379302

Fits:
Porsche 928 1978-1995

Porsche Reference to: 92834379302 / 92834379304

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.

Please click 'Zoom in' to view the diagram.
Diagram ref no 3.



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Related, superseded, cross reference or alternative numbers for comparison.

PFF57-703
PFF57-703
PFF57703
PFF57-703-26
PFF57-703-28
PFF5770326
PFF5770328
PFF57-703
PFF57703
PFF57-703-26BLK
PFF57-703-28BLK
PFF5770326BLK
PFF5770328BLK
92834379302
92834379304
92834379306
92834379307

The product you are viewing cross references to these numbers
PFF57-702BLK
Product Information
Product Information
Powerflex Black Series Front Lower Arm Bush Rear .
Sold as a pair

Fits:
Porsche 928 1978-1995

Please click 'Zoom in' to view the diagram.
Diagram ref no 2.

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Related, superseded, cross reference or alternative numbers for comparison.

PFF57-702BLK
PFF57-702
PFF57702
PFF57702BLK
92834101702
92834101704
92834101705
92834101706

The product you are viewing cross references to these numbers
PFF57-701BLK
Product Information
Product Information
PowerFlex Black Series Front Lower Arm Front Bush.
Sold as a pair

Fits:
Porsche 928 1978-1995

Please click 'Zoom in' to view the diagram.
Diagram re No 1.

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.

PFF57-701BLK
PFF57-701
PFF57701
PFF57701BLK
92834101704
92834101705
92834101706
92834101702

The product you are viewing cross references to these numbers
PFF57-704BLK
Product Information
Product Information
Powerflex Black Series Front upper arm bush.
Sold as a pack of 4 (both arms)

powerflexblk

Fits:
Porsche 928 1978-1995

Please click 'Zoom in' to view the diagram.
Diagram ref no 4


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.

PFF57-704BLK
PFF57-704
PFF57704
PFF57704BLK
92834102737
92834102738
92834103827
92834102838
92834102733
92834102833

The product you are viewing cross references to these numbers
PFR57-713
Product Information
Product Information
Powerflex Black Series Rear Anti Roll Bar Bush.
Sold as a pair

Porsche Reference to:

92833375431 - 21mm (1978 - 1982)
92833375426 - 22mm (1983 - 1995)

Fits:
Porsche 928 (1978 - 1982)

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.

Please click 'Zoom in' to view the diagram.
Diagram ref no 13



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

PFR57-713
PFR57-713-21
PFR5771321
PFR57-713-22
PFR5771322BLK
PFR57-713-21BLK
PFR5771321BLK
PFR57-713-22BLK
PFR5771322BLK
92833375426
92833375431

The product you are viewing cross references to these numbers
PFR57-714BLK
Product Information
Product Information
Powerflex Black Series Rear Anti Roll Bar Drop Rod Bush.
Sold as 4 bushes (both drop links)

Porsche Reference to: 477511061 / 92833305901 / 92833306001

Fits:
Porsche 928 1978-1995

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.

Please click 'Zoom in' to view the diagram.
Diagram ref no 14

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

PFR57-714BLK
PFR57-714
PFR57714
PFR57714BLK
735299S3-12
477511061
92833305901
92833305902
92833306001
92833306002

The product you are viewing cross references to these numbers
DISPLAYING 1 to 6 (of 6 products)
About Powerflex Black Series Bushes

Porsche Powerflex Black Series Bushes

Powerflex Black Series bushes are the most focused suspension bush upgrade available for Porsche models, created specifically for fast road, track and motorsport use. At Design911, we offer the full Black Series range so you can tailor your Porsche chassis for precise, repeatable geometry and a more connected, competition-oriented feel.

Powerflex Black Series - Designed for the Track

Black Series bushes use a very firm 95 Shore A polyurethane compound developed by Powerflex for maximum control of chassis movement. Compared with typical OE rubber, this material is far more resistant to load, flex and deformation, helping the suspension maintain its intended geometry under hard use.

Engineered for geometry control

The key focus of Powerflex Black Series is stability and precision rather than comfort. By significantly limiting bush deflection, these components help keep alignment settings more consistent during heavy braking, cornering and acceleration, which is particularly valuable on track or in aggressive fast-road driving where standard rubber can move and compress.

Track-focused, Porsche-specific applications

Each bush is designed around specific Porsche arms, mounts and locations, with attention to sizing, crush-tube design and lubrication grooves. This Porsche-specific engineering helps ensure that, when installed correctly, the bushes articulate as intended and support smooth suspension movement despite the very firm compound.

What to expect in use

Because Black Series bushes are substantially stiffer than standard rubber and even firmer than Powerflex’s usual performance grade materials, they will generally increase noise, vibration and harshness (NVH) compared with OE. Many owners therefore choose them for focused builds, track-orientated cars, or key suspension locations where geometry control matters most, rather than fitting them in every single position on a daily-driven Porsche.

Choosing Powerflex Black Series for your Porsche

If your priority is crisp response, consistency on circuit days and long-term durability under high loads, Powerflex Black Series bushes are a strong option. If you prefer more road comfort, you may wish to combine Black Series parts in critical locations with softer compounds elsewhere. Our team at Design911 can help you choose the most appropriate combination for your model and intended use.

Installation & setup

Correct installation, lubrication and torque settings are essential with any polyurethane bush, especially a very firm compound like Black Series. After fitting suspension bushes, a proper four-wheel alignment is strongly recommended so your Porsche benefits fully from the more stable geometry. Where applicable, follow Powerflex’s guidance on lubrication and tightening with the suspension at normal ride height.

Explore Powerflex Black Series bushes for Porsche

Browse our Powerflex Black Series range for Porsche models at Design911 to find chassis bushes for control arms, trailing arms, anti-roll bars and other key locations. Whether you are building a dedicated track car or a fast-road Porsche with a sharper, more precise feel, these bushes provide a track-orientated foundation for your suspension setup.

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