Anti Roll Bar Bushes
Front stabilizer bar bush 16mm, SET OF 4. Porsche 911 74-77
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Size: 16mm
This Stabilizer bar bushing is designed to replace the original 16 mm anti-roll bar mount bush used in Porsche 911 models (1974–1977) models. It secures the stabilizer bar to the chassis, allowing proper flex while isolating vibration and lateral movement.
Fits:
Porsche 911 1974 - 1977
Diagram ref no 23
• Quantity: Set of 4 pieces
• Inner Diameter: 16 mm (designed for 16 mm sway bar)
• Function: Supports and isolates the anti-roll bar from the chassis while allowing controlled movement
• Position: Front suspension — stabilizer bar mounting locations (two per side)
• Symptoms of wear: Squeaking, knocking, excessive body roll, looseness, or sway bar movement
• Benefits: OE-spec material hardness and fit, quieter ride, reduced vibration, restored bar performance, and long-term durability
• Installation: Fit each bushing over the stabilizer bar, seat securely in the bracket cradle, and fasten using the correct factory clamps or straps
Over time, stabilizer (sway) bar bushings are subjected to continuous twisting, compression, and exposure to road debris, heat, and oils. The rubber material gradually hardens, cracks, or deforms, reducing its ability to cushion the stabilizer bar and maintain tension. When this occurs, the bar can move or rattle inside its mounts, leading to reduced cornering stability and increased noise during driving.
Replace this set when:
• You hear clunking or squeaking noises from the front suspension
• The car feels less stable in corners or exhibits excessive body roll
• The bushings show visible cracks, tearing, or softness Performing front suspension repairs or sway bar service
Installing a new set of 4 bushings restores the proper preload and isolation in the stabilizer system — reducing roll, eliminating noise, and bringing back Porsche’s signature steering precision and balance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134379202
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
Suspension rebuild kit using standard shore bushes. Porsche 911 1974 - 1976
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Fits:
Porsche 911- 1974 to 1976
Please check front anti roll bar thickness - 16mm or 20mm
Suspension bush rebuild kit using standard shore rating (not uprated)
This kit is comprised of the following items:
Anti Roll Bar Bush Front 16mm for Porsche 911 PowerFlex (OE Part 91134379202)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
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
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Anti Roll Bar Bush Front 20mm for Porsche 911 Powerflex
- 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)
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
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12 Month Warranty
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Front stabilizer bar bush 16mm. Porsche 911 74-77
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Size: 16mm
This Stabilizer bar bushing is designed to replace the original 16 mm anti-roll bar mount bush used in Porsche 911 models (1974–1977) models. It secures the stabilizer bar to the chassis, allowing proper flex while isolating vibration and lateral movement.
Sold each, 4 required.
Fits:
Porsche 911 1974 - 1977
Diagram ref no 23
• Inner Diameter: 16 mm (fits 16 mm sway bar)
• Function: Supports and isolates anti-roll bar from chassis while allowing movement
• Position: Front suspension — stabilizer bar mounting location
• Symptoms of wear: Squeaking, sway bar movement, body roll, looseness or play in suspension
• Benefits: OEM-like material and fit, quieter ride, preserved bar function, durability
• Installation: Fit over the bar, seat in bracket cradle, use correct clamps or straps
Over time, stabilizer (sway) bar bushings endure constant twisting, compression, and exposure to heat, oil, and road contaminants. The rubber material gradually hardens, cracks, or deforms, reducing its ability to isolate movement and maintain bar tension.
When this happens, the stabilizer bar can shift or rattle inside the mount, leading to poor handling balance and unwanted suspension noise.
Replace this bushing when:
• You notice clunking, squeaking, or knocking noises over bumps or during cornering
• The car feels less stable in turns or exhibits excessive body roll
• There are visible cracks, tears, or looseness in the rubber mount
• Performing suspension or sway bar service, or during a front-end restoration
Installing fresh bushings restores the correct preload and isolation in the stabilizer system — reducing body roll, eliminating noise, and bringing back that original Porsche steering precision and confidence.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134379202
The product you are viewing cross references to these numbers
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12 Month Warranty
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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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Polyurethane Suspension Bush Kit. Porsche 911 1974 - 85 SuperPro
- 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)

Fits:
Porsche 911 1974-85 Cars with 18mm Front and 22mm Rear anti-roll bars
This kit includes
1 x SPF0893K Gear Linkage Bush Kit 2 Bushes, SuperPro Grease
1 x SPF1436K Front Strut Mount Bush Kit 2 Bushes, 2 Steel Tubes, SuperPro Grease
1 x SPF0526K Front Sway Bar link Bush Kit 4 Bushes, SuperPro Grease
1 x SPF1450-18K Front Sway Bar To Cross Member Mount Kit 2 Bushes, SuperPro Grease
1x SPF0236AK Front Torsion Bar Pivot Bush Kit 4 Bushes, SuperPro Grease
1 x SPF1375K Rear Engine Mounting Bush Kit 4 Bushes, 2 Steel Tubes, SuperPro Grease
1 x SPF0095-22K Rear Sway Bar Bottom Link Bush Kit 2 Bushes, SuperPro Grease
1 x SPF0134-22K Rear Sway Bar To Chassis Bush 2 Bushes, SuperPro Grease
1 x SPF0236K Torsion Bar Pivot Bush Kit 4 Bushes, SuperPro Grease
1 x SPF0988K Rear Trailing (Banana) Arm Front Bush Kit 4 Bushes, SuperPro Grease
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.
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12 Month Warranty
Worldwide Delivery
Stabilizer Bar / Drop Link Bush Rear 18mm for Porsche 911 / 914 Powerflex
- 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)
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
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12 Month Warranty
Worldwide Delivery
Stabilizer Bar / Drop Link Bush Rear 18mm for Porsche 911 / 914 Powerflex Heritage Collection
- 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)
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 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.
PFR57-412-18H
The product you are viewing cross references to these numbers
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12 Month Warranty
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Stabilizer bar / drop link bush, Rear 18mm for Porsche 911
- 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)
Drop link bush, Rear - 18mm.
Fits: left and right side.

Fits:
Porsche 911 1974-77 Rear
Porsche 911 Turbo 1975-77
Click 'Zoom in' for large parts diagram.
Diagram ref no 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91133379305
The product you are viewing cross references to these numbers
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12 Month Warranty
Worldwide Delivery
Stabilizer Bar /Drop Link Bush Rear 18mm for Porsche 911
- 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)
Drop Link Bush Rear - 18mm.
Fits: left and right side.

Fits:
Porsche 911 1974-77 Rear
Porsche 911 Turbo 1975-77
Click 'Zoom in' for large parts diagram.
Diagram ref no 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91133379305
The product you are viewing cross references to these numbers
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12 Month Warranty
Worldwide Delivery
Stabilizer Bar /Drop Link Bush Rear 18mm for Porsche 911 / 914 Powerflex Black Series
- 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)
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 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 responsitive steering
- Longer service life of suspension components
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFR57-412-18BLK
The product you are viewing cross references to these numbers
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12 Month Warranty
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Stabilizer bar bush 18mm for Porsche 911 / 944 / 964 / 968 / 993
- 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 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
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
This part number has been superseded from previous numbers:
- 477411313B
Click 'Zoom in' to display fitment diagram - Ref No 11.
Related reference numbers
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477411313N
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Stabilizer Bar Bush D-Shape (W32mm x L35mm) SuperPro
- 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 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 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
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
- Porsche 914 (1970-1976)
SET OF 2

Fits:
Porsche 911 1965-98
Porsche 924 1977-88
Porsche 944 1982-91
Porsche 968 1992-95
Porsche 928 1978-95
Porsche 356 1950-65
Porsche 914 1970-76
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
Click 'Zoom in' for large parts diagram.
Diagram Ref No 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SPF0134-
The product you are viewing cross references to these numbers
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12 Month Warranty
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Stabilizer Bar Bush Front 16mm for Porsche 911
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC

Fits:
Porsche 911 1974-77
Click 'Zoom in' for large parts diagram.
Diagram Ref No 23
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91134379202
The product you are viewing cross references to these numbers
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12 Month Warranty
Worldwide Delivery
Stabilizer Bar Bush Front 16mm for Porsche 911 Powerflex Heritage Collection (OE Part 91134379202)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Replacement OEM Part Number: 91134379202
Size: 16mm
SET OF 4

Fits:
Porsche 911 1974-77
Click 'Zoom in' for large parts diagram.
Diagram Ref No 23
Note: Please measure anti roll bar diameter before ordering.
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.
PFF57-403-16H
The product you are viewing cross references to these numbers
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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.