Anti Roll Bar Bushes
Anti roll bar bush, rear. Porsche 996 Turbo / 997.1 / 997.2
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12

Fits:
Porsche 996 Turbo 2004>> COUPE IX75 Cars with differential lock (exclusive)
Porsche 997.1 Targa C4 / S C4 2007>>
Porsche 997.2 Carrera 4 2009-12 with PASM electronic damper control (I475) COUPE / CABRIO
Porsche 997.2 C4S 2009-12 COUPE / TARGA
Porsche 997.1 Turbo 2007-10 with (I220) Locking differential 40%
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Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99633379229
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12 Month Warranty
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Front anti roll bar bush 23.5mm. Porsche 986 Boxster / 996 / 997
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- 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 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 914 (1970-1976)
Sold as a pair
OEM Part Number: 99634379212
Note: Please check anti roll bar diameter before ordering.
Fits:
Porsche 986 Boxster 2.5L 1997-99 *M030 FRONT
Porsche 986 Boxster 2.7L 2000>> *M030 FRONT
Porsche 986 Boxster S 3.2L 2000>> **I029 FRONT
Porsche 987 Boxster 2.7L 2005-08 TIPTRONIC **I029 FRONT
Porsche 996 Carrera 1998-05 C2 COUPE TIPTRONIC FRONT
Porsche 996 Carrera 1998-05 C2 COUPE *M030 FRONT
Porsche 996 Carrera 1998-05 CABRIO FRONT
Porsche 996 Carrera 1998-05 TARGA MANUAL FRONT
Porsche 996 Carrera 1998-05 C4 *M030 FRONT
Porsche 996 Carrera 2001-05 C4S FRONT
Porsche 996 Turbo 2001-05 Standard Chassis FRONT
Porsche 997 MKI Carrera 2005-08 C2 MANUAL **I029 FRONT
Porsche 997 MKI Carrera 2005-08 C4 WITH PASM FRONT
Porsche 997 MKI Carrera 2005-08 C4S WITH PASM FRONT
Porsche 997 MKI Carrera 2005-08 TARGA WITH PASM FRONT
Porsche 997 MKI Turbo 2008-09 FRONT
* M030 - Cars with Sport-type chassis
** I029 - Cars with Standard chassis
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.
PFF57-501-23.5
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12 Month Warranty
Worldwide Delivery
Front anti roll bar bush 23.5mm. Porsche 986 Boxster / 996 / 997
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- 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 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 914 (1970-1976)
Sold as a pair
OEM Part Number: 99634379212
Note: Please check anti roll bar diameter before ordering.
Fits:
Porsche 986 Boxster 2.5L 1997-99 *M030 FRONT
Porsche 986 Boxster 2.7L 2000>> *M030 FRONT
Porsche 986 Boxster S 3.2L 2000>> **I029 FRONT
Porsche 987 Boxster 2.7L 2005-08 TIPTRONIC **I029 FRONT
Porsche 996 Carrera 1998-05 C2 COUPE TIPTRONIC FRONT
Porsche 996 Carrera 1998-05 C2 COUPE *M030 FRONT
Porsche 996 Carrera 1998-05 CABRIO FRONT
Porsche 996 Carrera 1998-05 TARGA MANUAL FRONT
Porsche 996 Carrera 1998-05 C4 *M030 FRONT
Porsche 996 Carrera 2001-05 C4S FRONT
Porsche 996 Turbo 2001-05 Standard Chassis FRONT
Porsche 997 MKI Carrera 2005-08 C2 MANUAL **I029 FRONT
Porsche 997 MKI Carrera 2005-08 C4 WITH PASM FRONT
Porsche 997 MKI Carrera 2005-08 C4S WITH PASM FRONT
Porsche 997 MKI Carrera 2005-08 TARGA WITH PASM FRONT
Porsche 997 MKI Turbo 2008-09 FRONT
* M030 - Cars with Sport-type chassis
** I029 - Cars with Standard chassis
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
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.
PFF57-501-23.5BLK
The product you are viewing cross references to these numbers
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12 Month Warranty
Worldwide Delivery
Lateral support clamp anti roll bar. Various sizes for Porsche

Anti-Roll Bars (ARB’s) play an important role in a vehicle’s suspension system, helping to reduce body roll by transferring cornering load from one side of a vehicle to the other.
Often mounted to the vehicle’s chassis with rubber bushes, these bushes ensure the bar works as intended. To prevent the anti-roll bar from moving laterally within its mounts when turning, OE manufacturers will either bond the bushes to the bar, add dead-stops to the bar itself, or rely solely on the clamping pressure of the rubber.
But what happens when those bushes wear and need to be replaced? Often anti-roll bars with bonded bushes come as a costly complete assembly, so the alternative is to fit a more cost-effective unbonded polyurethane replacement, like the many we offer.
In most cases, friction from the bush will prevent any side-to-side bar movement. Still, when turning aggressively or cornering at higher speeds, a laterally shifting anti-roll bar decreases the efficiency and effectiveness of the bar, changing the dynamics of your suspension system in unpredictable ways. It also poses the risk of the bar fouling on other areas of the vehicle or suspension system.
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12 Month Warranty
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Stabilizer bar bush rear for Porsche 996 turbo / 997 turbo
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 TURBO 2007-09
Price is each
Fits:
Porsche 996 Turbo
Porsche 997 Turbo
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Diagram Ref No 2.
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99633379227
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12 Month Warranty
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Stabilizer bar bush rear for Porsche 996TT / 997TT
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 TURBO 2007-09
Price is each
Fits:
Porsche 996 Turbo
Porsche 997 Turbo
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99633379227
The product you are viewing cross references to these numbers
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12 Month Warranty
Worldwide Delivery
Stabilizer bar bush, Front. Porsche 996 / 997
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Carrera C4 3.6L 2009-12

Fits:
Porsche 996 C4 / C4S 1999>>
Porsche 996 Turbo/Coupe 2004>> Differential Lock (exclusive)
Porsche 997 C4 Coupe / Cabrio 2005-10 Cars with Standard chassis
Porsche 997 Turbo 2007 Coupe
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99634379211
The product you are viewing cross references to these numbers
Shop Securely
12 Month Warranty
Worldwide Delivery
Stabilizer bar bush, Front. Porsche 996 / 997
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII Carrera C4 3.6L 2009-12

Fits:
Porsche 996 C4 / C4S 1999>>
Porsche 996 Turbo/Coupe 2004>> Differential Lock (exclusive)
Porsche 997 C4 Coupe / Cabrio 2005-10 Cars with Standard chassis
Porsche 997 Turbo 2007 Coupe
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99634379211
The product you are viewing cross references to these numbers
Shop Securely
12 Month Warranty
Worldwide Delivery
Stabilizer bar bush, Front. Porsche Boxster / 996 / 997
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- 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 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09

Fits:
Porsche 986 Boxster 2.5L 1997-99 *M030 FRONT
Porsche 986 Boxster 2.7L 2000>> *M030 FRONT
Porsche 986 Boxster S 3.2L 2000>> **I029 FRONT
Porsche 987 Boxster 2.7L 2005-08 TIPTRONIC **I029 FRONT
Porsche 996 Carrera 1998-05 C2 COUPE TIPTRONIC FRONT
Porsche 996 Carrera 1998-05 C2 COUPE *M030 FRONT
Porsche 996 Carrera 1998-05 CABRIO FRONT
Porsche 996 Carrera 1998-05 TARGA MANUAL FRONT
Porsche 996 Carrera 1998-05 C4 *M030 FRONT
Porsche 996 Carrera 2001-05 C4S FRONT
Porsche 996 Turbo 2001-05 Standard Chassis FRONT
Porsche 997 MKI Carrera 2005-08 C2 MANUAL **I029 FRONT
Porsche 997 MKI Carrera 2005-08 C4 WITH PASM FRONT
Porsche 997 MKI Carrera 2005-08 C4S WITH PASM FRONT
Porsche 997 MKI Carrera 2005-08 TARGA WITH PASM FRONT
Porsche 997 MKI Turbo 2008-09 FRONT
* M030 - Cars with Sport-type chassis
** I029 - Cars with Standard chassis
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99634379212
The product you are viewing cross references to these numbers
Shop Securely
12 Month Warranty
Worldwide Delivery
Stabilizer bar bush, Front. Porsche Boxster / 996 / 997
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005 -08/08
- 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 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09

Fits:
Porsche 986 Boxster 2.5L 1997-99 *M030 FRONT
Porsche 986 Boxster 2.7L 2000>> *M030 FRONT
Porsche 986 Boxster S 3.2L 2000>> **I029 FRONT
Porsche 987 Boxster 2.7L 2005-08 TIPTRONIC **I029 FRONT
Porsche 996 Carrera 1998-05 C2 COUPE TIPTRONIC FRONT
Porsche 996 Carrera 1998-05 C2 COUPE *M030 FRONT
Porsche 996 Carrera 1998-05 CABRIO FRONT
Porsche 996 Carrera 1998-05 TARGA MANUAL FRONT
Porsche 996 Carrera 1998-05 C4 *M030 FRONT
Porsche 996 Carrera 2001-05 C4S FRONT
Porsche 996 Turbo 2001-05 Standard Chassis FRONT
Porsche 997 MKI Carrera 2005-08 C2 MANUAL **I029 FRONT
Porsche 997 MKI Carrera 2005-08 C4 WITH PASM FRONT
Porsche 997 MKI Carrera 2005-08 C4S WITH PASM FRONT
Porsche 997 MKI Carrera 2005-08 TARGA WITH PASM FRONT
Porsche 997 MKI Turbo 2008-09 FRONT
* M030 - Cars with Sport-type chassis
** I029 - Cars with Standard chassis
Click 'Zoom in' for large parts diagram.
Diagram Ref No 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99634379212
The product you are viewing cross references to these numbers
Shop Securely
12 Month Warranty
Worldwide Delivery
Porsche Anti-Roll Bar Bushes | Design911 Suspension Components for Precision, Grip & Stability
Anti-roll bar bushes (also known as stabiliser bar bushes) are small but critical components within your Porsche’s suspension system. They secure the anti-roll bar to the chassis, allowing controlled movement that reduces body roll during cornering and improves handling stability. Properly functioning bushes help maintain suspension geometry, steering precision, and ride comfort — key attributes that define Porsche’s dynamic driving performance.
At Design911, we offer a full range of anti-roll bar bushes, crafted from advanced rubber, polyurethane, and performance-grade materials. Each bushing is engineered for exact fitment, durability, and vibration isolation. Perfect for routine servicing, performance upgrades, or complete restorations, our range helps restore suspension balance and ensures consistent road holding and control.
What Do Anti-Roll Bar Bushes Do?
Anti-roll bar bushes act as cushioning mounts between the anti-roll bar and chassis, absorbing vibration and allowing controlled articulation of the bar.
Core Functions:
• Reduce body roll by supporting bar movement during cornering.
• Provide cushioning to minimise noise and vibration.
• Maintain correct anti-roll bar alignment under load.
• Help distribute cornering forces evenly for improved grip.
• Enhance suspension comfort and steering response.
In good condition, anti-roll bar bushes keep your Porsche stable, predictable, and agile — whether on road, track, or everyday driving.
Why Do Anti-Roll Bar Bushes Fail or Degrade?
Constant flexing, pressure, and exposure to environmental factors gradually wear down bush materials, affecting handling and comfort.
Common Causes of Failure Include:
• Cracking, hardening, or perishing of rubber due to age or heat.
• Oil contamination softening and weakening bush material.
• Corrosion or movement in brackets wearing the bush housing.
• Over-compression or deformation from high-performance driving.
• Excessive vibration causing accelerated wear.
When bushes fail, symptoms often include clunking noises, poor cornering balance, and reduced steering sharpness — all signs that replacement is needed to restore your Porsche’s precision.
Why Replace or Upgrade Your Porsche Anti-Roll Bar Bushes?
Replacing worn bushes restores suspension control, comfort, and steering precision. Upgrading to polyurethane or performance-grade bushes provides sharper handling and greater durability for spirited or track-focused driving.
Key Benefits:
• Restores handling stability and reduces body roll.
• Eliminates suspension noise, vibration, and harshness.
• Improves steering response and cornering feedback.
• Available in rubber and performance polyurethane options.
• Fits Porsche 911, 944, 968, Boxster, Cayman, Cayenne, and Macan models.
• Ideal for suspension servicing, restoration, or performance tuning.
Design911’s Porsche anti-roll bar bushes offer precision, performance, and reliability — ensuring your Porsche continues to handle with confidence and control.
Highlights
• Premium Porsche anti-roll bar bushes and stabiliser
mounts.
• High-quality rubber or polyurethane construction.
• Designed for precise fitment and vibration absorption.
• Improves handling, stability, and suspension comfort.
• Compatible with classic and modern Porsche models.
• Perfect for maintenance, restoration, or performance upgrades.