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Anti Roll Sway Bar
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fits:
Porsche 911 - 1965 to 1973
19mm front (through body) anti roll bar assembly includes drop links and levers.
Upgrade from the standard 15mm to 19mm anti roll bar
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
901343703PR
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Upgrade the front roll control of your classic Porsche 911 with this adjustable 19 mm front anti-roll bar kit. Designed for 1965-73 911 models, this kit replaces the standard 15 mm bar with a stiffer 19 mm unit, and includes adjustable levers/drop-links to fine-tune roll stiffness. Whether you’re restoring a vintage 911 or upgrading for performance, this kit offers improved cornering stability, sharper front-end response and tuning flexibility.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
What This Product Does:
- An anti-roll bar (sway bar) connects the left and right sides of the front suspension to resist body roll during cornering. It transfers load between the two sides so the outside wheel shares part of the load with the inside one, reducing lean.
- By increasing the diameter from 15 mm to 19 mm, the bar becomes stiffer, thus reducing body roll further and improving cornering stability and front-end responsiveness.
- The “adjustable” aspect of the kit allows the driver or technician to change the lever arm length or link pivot point to vary roll stiffness—so you can fine-tune how much the bar contributes vs the springs.
- This kind of upgrade improves chassis balance, driver feedback, quicker turn-in, and reduced dynamic body lean — especially beneficial on vintage sports cars like the 911 when driven spiritedly or on track.
Symptoms & Signs You Might Need This:
- You feel excessive body roll at the front during cornering, or the front end feels soft or unstable in lateral transitions.
- The handling is less sharp than you expect, especially if the suspension has been upgraded (lowered, stiffer springs) and the standard sway bar is now the weak link.
- You’ve installed wider or stickier tyres, or uprated front suspension components, and want the front anti-roll bar to match the rest of the setup.
- You want to tune or adjust the balance between understeer/oversteer – using an adjustable bar lets you adapt front roll stiffness.
- You’re restoring a vintage 911 and want a strong, performance-capable bar with correct style and function.
Why Replacement / Upgrade Matters:
- A stock sway bar may become inadequate when other suspension elements get upgraded — lowering, heavier wheels, larger tyres all increase demands on the bar. Upgrading to the 19 mm adjustable kit ensures the front links are not the limiting factor.
- Improved roll stiffness means the car behaves more consistently under load — less lean, more predictable weight transfer, better driver confidence.
- The adjustable kit gives you tuning flexibility — you can adapt the stiffness for road vs track, or change the balance if you alter tyres, springs, or other suspension components.
- In a vintage car, a properly specified upgrade also helps maintain or enhance value — strong handling and correct appearance matter.
- Finally, a performance upgrade like this supports safer driving dynamics when pushing the car harder.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
901343703PR
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fits:
Porsche 911 - 1965 to 1973
22mm front (through body) anti roll bar assembly includes drop links and levers.
Upgrade from the standard 15mm to 22mm anti roll bar
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
901343703PR
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Upgrade the front roll control of your classic Porsche 911 with this high-performance adjustable 22 mm front anti-roll bar kit. Specifically designed for 1965-73 911 models, this kit replaces the original 15 mm bar with a larger diameter 22 mm unit and includes adjustable drop-links/levers for fine-tuning roll stiffness. Whether you’re restoring a vintage 911, upgrading for spirited driving or prepping for track use, this kit enhances cornering stability, improves front-end responsiveness and allows tuning to match your suspension setup.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
What This Product Does:
- The front anti-roll bar connects the left and right front suspension arms, limiting body roll by transferring load from the outside wheel to the inside wheel during cornering.
- A larger diameter bar (22 mm vs 15 mm) increases torsional stiffness, reducing body lean, improving turn-in and chassis stability.
- The “adjustable” aspect adds the ability to change the lever arm or drop-link position, allowing fine-tuning of roll stiffness (e.g., softer for street, stiffer for track) without changing the bar itself.
- As a result you get sharper front-end response, flatter corners, improved tyre contact and more confidence in dynamic driving.
Symptoms & Signs You Might Need This Upgrade:
- Excessive body roll or lean in the front end during cornering, or a feeling that the car “leans” more than it used to.
- The front suspension feels less sharp, turn-in feels delayed or vague — especially if you’ve already upgraded springs, shocks or tyres and the bar is now the limiting factor.
- If your car has been lowered, fitted with wider tyres, stiffer suspension, or is used for track, the factory bar may no longer provide adequate control.
- You want to tune or adjust your front roll stiffness — the adjustable kit gives you that capability.
- Visible signs: a thinner or corroded stock front bar, worn drop-links, excessive movement in the front roll bar mount bushes etc.
Why This Upgrade Matters:
- By increasing front anti-roll stiffness, you improve the car’s dynamic behaviour: better balance, less front body-roll, sharper front-end response, and improved driver confidence.
- The adjustable feature gives real world flexibility: you can match stiffness to your tyres, springs, driving style or track/road use rather than being locked into factory spec.
- For a classic 911 used in sporty driving, cautious track use or performance upgrades, this bar upgrade supports the rest of the suspension system rather than being the weak link.
- If you leave the stock bar while upgrading other components, you risk handling being compromised — upgrading ensures all parts rise together.
- Finally, from a restoration perspective, fitting a well-specified upgrade enhances the value and usability of the car.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
901343703PR
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Fits:
Porsche 911 - 1965 to 1973
24mm front (through body) anti roll bar assembly includes drop links and levers.
Upgrade from the standard 15mm to 24mm anti roll bar
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
901343703PR
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Upgrade your classic Porsche 911’s front suspension with this premium 24 mm adjustable front anti-roll bar kit, designed for 1965-1973 911 models. Replacing the original ~15 mm bar, this kit includes the thicker torsion bar, adjustable levers/drop-links and full mounting hardware, offering significant improvement in chassis control and tuning flexibility. Ideal for restoration, spirited road use or track preparation—this kit gives sharper turn-in, less body lean and the ability to fine-tune roll stiffness to match your tyres and springs.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
What This Product Does:
- The front anti-roll bar (sway bar) connects the left and right front suspension arms, limiting body roll by providing a torsional link between the two sides when cornering.
- By upgrading from the stock ~15 mm diameter bar to 24 mm, you significantly increase torsional stiffness of the bar—thus reducing body lean, improving turn-in and helping the chassis resist roll under load.
- The adjustable feature means you can change the effective leverage or drop-link mounting position (shorter vs longer arm), thereby tuning the roll stiffness to match springs, tyres, driving style or track vs road use.
- For a classic 911 with upgraded suspension, wider tyres or lowered ride height, this kit helps ensure the anti-roll bar isn’t the weak link and supports sharper front-end handling.
Symptoms & Signs You Might Need It:
- The front end of your 911 feels soft or “floaty” in corners, or there’s noticeable body roll—especially compared to performance cars of similar vintage.
- You’ve upgraded the suspension (lowered springs, stiffer dampers, wider tyres) and the original anti-roll bar seems to “give” too much or let the car lean more than you’d expect.
- The drop-links or bar mountings show excessive wear, movement or noise (clunks) when turning or going over undulations.
- You want tuning capability for ride/handling balance—stock fixed bars don’t allow easy adjustment of roll stiffness or corner-balance differences.
- Visual inspection reveals the stock bar is thin, corroded, the mount bushes collapsed, or the drop-link geometry is showing signs of age.
Why This Upgrade Matters:
- Improves chassis precision: With a thicker bar and adjustable feature you gain better front-end response, sharper turn-in, and less understeer due to roll-control improvement.
- Works with the rest of your suspension: If you have upgraded springs/tyres/dampers, this bar ensures those upgrades aren’t compromised by a weak sway bar.
- Tuning advantage: Because the kit is adjustable, you can dial in the front roll stiffness to match your use (road vs track) or alter the handling balance (understeer/oversteer) more easily.
- Classic 911 value: For older cars, having performance-capable and maintenance-fresh suspension components adds to usability and resale value.
- Longevity: Stock bars and mountings from the 1960s/70s may be corroded or tired—replacing with a modern, thicker and adjustable kit improves durability and driving confidence.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
901343703PR
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
SET OF 4

Rear stabilizer bar bush - 15mm.
Rear drop link bush - 15mm.
Fits - left and right side.
Fits:
Porsche 911 1965-73 Rear
Porsche 914 1970-76 Rear
Note: Please check anti roll bar diameter before ordering.
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.
PFR57-412-15H
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 914 (1970-1976)
Sold as a pack of 4 bushes
Replacement for Porsche parts No. 90133379304.

Rear stabilizer bar bush - 16mm.
Rear drop link bush - 16mm.
Fits - left and right side.
Fits:
Porsche 911 1965-68 L / T / TU Rear 4 required per car
(Stabiliser bar and Drop link)
Porsche 914 1970-76 Rear 2 required per car
(Stabiliser bar)
Diagram Ref No 2.
Click 'Zoom in' for large parts diagram.
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.
PFR57-412-16BLK
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 914 (1970-1976)
Replacement for Porsche parts No. 90133379304.
SET OF 4

Rear stabilizer bar bush - 16mm.
Rear drop link bush - 16mm.
Fits - left and right side.
Fits:
Porsche 911 1965-68 L / T / TU Rear 4 required per car
(Stabiliser bar and Drop link)
Porsche 914 1970-76 Rear 2 required per car
(Stabiliser bar)
Diagram Ref No 2.
Click 'Zoom in' for large parts diagram.
NOTE: Please check anti roll bar diameter before ordering.
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.
PFR57-412-16
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 914 (1970-1976)
Replacement for Porsche parts No. 90133379304.
SET OF 4

Rear stabilizer bar bush - 16mm.
Rear drop link bush - 16mm.
Fits - left and right side.
Fits:
Porsche 911 1965-68 L / T / TU Rear 4 required per car
(Stabiliser bar and Drop link)
Porsche 914 1970-76 Rear 2 required per car
(Stabiliser bar)
Diagram Ref No 2.
Click 'Zoom in' for large parts 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.
PFR57-412-16H
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
Sold as a pair
OEM Part Number: 90134379202

Fits:
Porsche 911S 1965-67
Porsche 911S 1968 USA
Porsche 911S 1969
Porsche 911S / Carrera 2.7L / 911T/E / 911T-K 1970-73
Porsche 914 1970-76
Note: Please check bar diameter before ordering.
Click 'Zoom in' for large parts diagram.
Diagram Ref No 4.
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.
PFF57-1403-13
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
Sold as a pair
OEM Part Number: 90134379202

Fits:
Porsche 911S 1965-67
Porsche 911S 1968 USA
Porsche 911S 1969
Porsche 911S / Carrera 2.7L / 911T/E / 911T-K 1970-73
Porsche 914 1970-76
Note: Please check bar diameter before ordering.
Click 'Zoom in' for large parts 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.
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.
PFF57-1403-13BLK
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
Sold as a pair
OEM Part Number: 90134379202

Fits:
Porsche 911S 1965-67
Porsche 911S 1968 USA
Porsche 911S 1969
Porsche 911S / Carrera 2.7L / 911T/E / 911T-K 1970-73
Porsche 914 1970-76
Note: Please check bar diameter before ordering.
Click 'Zoom in' for large parts diagram.
Diagram Ref No 4.
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.
PFF57-1403-13H
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
Sold as a pair
OEM Part Number: 90134379202

Fits:
Porsche 911S 1965-67
Porsche 911S 1968 USA
Porsche 911S 1969
Porsche 911S / Carrera 2.7L / 911T/E / 911T-K 1970-73
Porsche 914 1970-76
Note: Please check bar diameter before ordering.
Click 'Zoom in' for large parts diagram.
Diagram Ref No 4.
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.
PFF57-1403-14
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
OEM Part Number: 90134379202

Fits:
Porsche 911S 1965-67
Porsche 911S 1968 USA
Porsche 911S 1969
Porsche 911S / Carrera 2.7L / 911T/E / 911T-K 1970-73
Porsche 914 1970-76
Note: Please check bar diameter before ordering.
Click 'Zoom in' for large parts 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.
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.
PFF57-1403-14BLK
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 914 (1970-1976)
Sold as a pair
OEM Part Number: 90134379202
Fits:
Porsche 911S 1965-67
Porsche 911S 1968 USA
Porsche 911S 1969
Porsche 911S / Carrera 2.7L / 911T/E / 911T-K 1970-73
Porsche 914 1970-76
Note: Please check bar diameter before ordering.
Click 'Zoom in' for large parts diagram.
Diagram Ref No 4.
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.
PFF57-1403-14H
The product you are viewing cross references to these numbers
Anti Roll Bars / Sway Bars – Improved Handling and Body Control
Anti roll bars, also known as sway bars, are suspension upgrade components designed to reduce body roll during cornering and improve overall vehicle stability. By linking the left and right sides of the suspension, anti roll bars resist excessive chassis movement, helping the car stay flatter through corners and delivering sharper, more predictable handling.
At Design911, our range of anti roll bars includes high-quality OE replacement and performance upgrade options from trusted suspension brands. Whether you’re refreshing worn factory components or upgrading for fast-road and track use, anti roll bars are one of the most effective ways to enhance handling without compromising ride comfort.
What Do Anti Roll Bars / Sway Bars Do?
Anti roll bars are torsion bars mounted across the
suspension axle that control lateral body movement when cornering. Their main
functions include:
- Reducing body roll during turns
- Improving cornering balance and grip
- Enhancing steering response and driver confidence
- Distributing load more evenly across the suspension
By limiting excessive chassis lean, sway bars allow tyres to maintain better contact with the road, improving traction and control.
Why Upgrade Your Anti Roll Bars?
Upgrading anti roll bars is a popular suspension
modification because it offers:
- Noticeable handling improvements with minimal impact on ride comfort
- Better control during spirited driving or track use
- Improved balance between front and rear suspension
- Reduced understeer or oversteer when correctly matched
Performance anti roll bars are often adjustable, allowing fine-tuning of suspension balance to suit driving style, tyre choice and road conditions.
When Should You Replace or Upgrade Anti Roll Bars?
Anti roll bars should be replaced or upgraded when:
- Factory suspension feels soft or unstable during cornering
- Rubber bushes or mounting hardware are worn or damaged
- Upgrading other suspension components such as springs or dampers
- Preparing a vehicle for fast-road, track day or performance use
Replacing tired components or upgrading to performance sway bars restores precise handling and improves overall driving enjoyment.
At Design911, we supply anti roll bars and suspension upgrades that meet professional workshop standards and enthusiast expectations.