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Your Vehicle
Porsche // Boxster 986/987/981 (1997-2016) // Boxster 981 S / GTS 3.4L 2012-16
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- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
This round bush has a 40mm outer diameter and an overall length of 55mm. These 23mm bushes directly replace Porsche part number 477411053J.
Porsche 924 1982* - For Models With 23mm Aftermarket Anti-Roll Bar
Porsche 924 1983-85 - For Models With 23mm Aftermarket Anti-Roll Bar
Porsche 924 Turbo 1982* - For Models With 23mm Aftermarket Anti-Roll Bar
Porsche 924 Turbo 1983-85 - For Models With 23mm Aftermarket Anti-Roll Bar
Porsche 924 S 1986-88 - Vehicles With Sports Suspension (PR 030)
Porsche 944-1 1984-85 - Vehicles With Rear Anti-Roll Bar (PR 404)
Porsche 944-2 1985-86 - Vehicles With Rear Anti-Roll Bar / Sports Suspension (PR 030/PR 404)
*NOTE: Porsche updated the 924's front anti-roll bar design during the 1982 model year. If your 1982 Porsche 924 has a VIN from F 92-CN402 198 onward (or F 92-CN450 832 onward for North America), it will be compatible.
For 1982 Porsche 924 Turbo models, compatibility starts from F 93-CN100 306 onward (or F 93-CN150 332 onward for North American and Japanese models). Please ensure you check your VIN to confirm fitment. If you're unsure, please do not hesitate to contact us with your vehicle's VIN number for confirmation.
Additionally, due to the vehicle's age and some ambiguity in the official catalogue, we highly recommend measuring your anti-roll bar before ordering to ensure you select the correct size.
Diagram ref. 3.
*NOTE: Due to the vehicle's age and some ambiguity in the official catalogue, we highly recommend measuring your anti-roll bar before ordering to ensure you select the correct size.
The Powerflex Range:
Road Series (Road & Fast Road) - POWERFLEX Road Series bushes improve your cars’ road holding and chassis performance by controlling the amount of unwanted flex in the suspension. This means the suspension is doing what it is supposed to. It means your tyres have greater contact with the road at all times, therefore, improving safety and performance. Correctly formulated polyurethane is as good if not better at noise, vibration and harshness suppression when compared to worn rubber. Our Road bushes offer Prolonged tyre life, Improved performance, Increase safety, and Greater cost-effectiveness.
Black Series (Track & Motorsport) - 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. 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.
Heritage Collection (Classic & Restoration Use) - 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. Our new range speaks to the growing demand for quality replacement parts that have an aesthetic in keeping with’ the look of the original part and restoration project as a whole whilst carrying all of the performance and longevity benefits offered by Powerflex’s unique blend of polyurethane. Going a step further than simply using the same material and durometer of hardness for all of our parts, each part location has its own shore designation to ensure improved suspension performance without discomfort or vibration, all of which ship in our new ‘Classic’ Dark Grey colour suitable for all road-based applications.
Powerflex Materials:
The materials used by Powerflex are colour coded to make them easily identifiable. Below explains the shore rating and their common uses.
Red 65A – Used for our Universal exhaust mounts and diesel engine mounts.
Yellow 70A – Mainly used for engine mounts, diff mounts and subframe mounts or areas where the bush needs a lot of movement and absorption.
Purple 80A – Our most common material. This is used in most areas of the suspension and provides the right mix between performance and compliance.
Black 95A – Our hardest material. This is used mostly for our Black Series range or in our Road Series where the vehicle’s standard suspension demands require us to use this hardness of material i.e. in areas of high load.
Grey* - Used specifically for our Heritage Collection. This can be any of the durometers mentioned but will always be the same as the equivalent part from our Road Series i.e. if it’s Purple 80A in our Road Series, it’d be Grey 80A in our Heritage Collection. On our Road Series and Heritage Collection kits, we can use a mix of all 4 of our materials. During the development stages, we test the original bush and see what the requirements are for strength and movement. At that point, we then decide which of our materials would be best suited. We don’t believe in a one material suits all rule. Manufacturers will do the same and will use different shore rubbers, however, it’s not as noticeable as all rubber bushes look visually similar.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PFF57-306-23BLK
The product you are viewing cross references to these numbers
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
Front & Rear Anti Roll Bar:
- Front - 28mm (not adjustable) requires bushes 99134379208
- Rear - 24mm (adjustable in 2 places)
Fits:
Porsche 981 Boxster / Boxster S 05/2012>>
Porsche 981 Cayman / Cayman S 05/2012>>
Designed to reduce body roll, increase lateral stiffness and improve handling. All H&R Sway Bar kits have been shot peened and heat treated, and feature precision forged ends - many applications have multiple end link mounting points for adjustability. Also included are H&R exclusive bushings made from a Urethane / Teflon composite that eliminates squeaks, and don't require lubrication. Ever. That means no mess, no maintenance-just bolt in H&R Sway Bars and go!
H&R Sway Bars are 100% made in Germany, and are powder coated for long lasting good looks and durability on the street and track.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
33879-1
The product you are viewing cross references to these numbers
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.
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
Fits:
Porsche 981 Boxster / Boxster S - 2012 to 2016
Porsche 981 Cayman / Cayman S - 2013 to 2016
Porsche 718 Boxster / Boxster S / Boxster T/ Boxster GTS - 2017 Onwards (2.0lt and 2.5ltr models)
Porsche 718 Cayman / Cayman S / Cayman T/ Cayman GTS - 2017 Onwards (2.0lt and 2.5ltr models)
The Best Suspension Mod Available for the Porsche 981 and 718
Through extensive research and track testing, CMS has engineered the perfect replacement sway bars for the Porsche 981 & 718 Cayman/Boxster (all model) Our engineers took hundreds of laps at racetracks from Road America to COTA, Mid Ohio to High Plains, along with thousands of miles on the street. All to confirm the CMS Performance Sway Bars transform the handling of the Porsche while maintaining the car's everyday driveability and reliability.
Tuned to work with your Porsche's OEM struts and springs (both standard and PASM), the CMS Sway Bars are the best handling improvement you can make to your 981. Based on the sway bars of the GT4, the CMS Performance Sway Bars have five holes of adjustment both front and rear, giving you an unprecedented range within which to tune your car's handling depending on the road or track you're tackling.
Larger Diameter Plus Fine-Tuning Your Porsche's Handling
With larger diameters than the OEM GT4 bars, the CMS Performance Adjustable Sway Bars can be adjusted from slightly softer than stock to substantially stiffer. This lets you fine-tune handling balance from understeer to neutral to oversteer with simple hand tools.
Included are OEM Porsche sway bar bushings, precision-machined for the slightly larger bars, giving you worry-free fitment, OEM quality, and a noise-free installation. CMS Performance Sway Bars are engineered and manufactured in the USA with drop-forged ends for high strength and performance.
Base, S, GTS models have CMS front drop links. These are OEM Porsche front links customized to fit the CMS front sway bar. Your original rear drop links do not need to be replaced.
CMS Performance Adjustable Sway Bars Details:
- Diameters of 31.8mm (front) and 25.4mm (rear), 30% larger than the OEM 981 Cayman GT4 bars
- Adjustment of each bar goes from 1% softer than stock to 50% stiffer.
- Powder-coated Black, Red, or Silver for long life and great looks
- Designed and manufactured in the USA using all US components
- Engineered specifically for the Porsche 981 and 718 chassis
Adjustable Sway Bar Kit Includes the Following:
- Front and rear five-way-adjustable sway bars w/ forged ends
- OEM Porsche bushings custom-machined to our specifications
- OEM Porsche front drop link set, customized to our specification (required for Base, S, GTS)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
991343705CMS
The product you are viewing cross references to these numbers
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
Rear anti-roll bar 98133370314 by Porsche for selected 981 Boxster, 982 Boxster and 982C Cayman applications from 2012 onwards. This genuine rear stabiliser must be selected using the applicable vehicle PR codes.
Fits
- Porsche 981 Boxster 2.7L / Boxster S and GTS 3.4L 2012–16 — PR:009,X73 or PR:008,X73 as specified by the parts diagram
- Porsche 718 Boxster (982) 2017>> — 2.0L 300 Bhp base and T, 2.5L 350 Bhp S, 2.5L 365 Bhp GTS, 4.0L 400 Bhp GTS and Boxster 25 Years, including listed manual and PDK variants — PR:219,475477
- Porsche 718 Cayman (982C) 2017>> — 2.0L 300 Bhp base and T, 2.5L 350 Bhp S, 2.5L 365 Bhp GTS and 4.0L 400 Bhp GTS, including listed manual and PDK variants — PR:006,030; PR:029; or PR:219,475477
Check fitment for your specific vehicle (model, year, engine) before ordering. Confirm the part number and PR codes against the VIN because visually similar stabilisers can have different specifications.
Diagram: Anti-roll bar 981 Boxster / Boxster S 2012-16
Diagram: Anti-roll bar 718 (982) Boxster 2017>>
Diagram: Anti-roll bar 718C (982C) Cayman 2017>>
What This Product Does
The anti-roll bar connects the left and right sides of the rear suspension. By resisting differences in suspension movement across the axle, it helps manage body roll and preserves the chassis balance specified for the vehicle.
Functions
- Resists excessive lateral body movement during cornering
- Connects suspension movement across the rear axle
- Helps maintain the intended front-to-rear handling balance
- Transfers loads through the stabiliser mountings and coupling rods
Technical Details
- Part number: 98133370314
- Catalogue description: anti-roll bar; stabiliser; stabilizer
- Position: rear axle
- Brand: genuine Porsche
- Diagram quantity: 1
- Application identifiers: PR:009,X73; PR:008,X73; PR:219,475477; PR:006,030; PR:029
Symptoms of Fault
- Greater body roll or inconsistent behaviour through corners
- Visible corrosion, bending or other physical damage
- Excess movement around the mounting locations
- Clunks or knocks when travelling over uneven surfaces
- Unsettled response during quick changes of direction
Suspension noise does not necessarily indicate a defective bar. Worn bushes, coupling rods, brackets or fasteners are more frequent causes, so the complete stabiliser assembly should be inspected before parts are replaced.
Why Replacement Matters
A bent, damaged or incorrectly specified stabiliser can change the suspension characteristics intended for the car. Installing the correct PR-code-specific Porsche part helps retain the original rear chassis configuration. Inspect the associated bushes, clamps, brackets, links and fixings while access is available.
FAQs
- How is the correct anti-roll bar identified?
Compare part number 98133370314 and the listed PR codes with the vehicle VIN and factory equipment data. - Is the anti-roll bar always responsible for rear suspension knocks?
No. Check the bushes, coupling rods, brackets and mounting hardware first, as wear in these components commonly causes noise. - Are bushes, brackets and coupling rods included?
These are separate parts within the stabiliser assembly and should be assessed individually.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98133370314
The product you are viewing cross references to these numbers