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Porsche > 991 (911) MK2 2016-2019 > Brakes >

Caliper Seals |Pistons

Caliper Seals |Pistons

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Halo GT Advanced DOT 4 Racing Brake Fluid - 600ml - 00004320209, 00004320366, 00004321082, 00004330552 - L04005, L04010, L04050
1
Halo GT Advanced DOT 4 Racing Brake Fluid - 600ml
GTEUK198L2
Product Information
Product Information
Halo GT Advanced DOT 4 Racing Brake Fluid
600ml aluminium bottle

Halo GT is the latest formulation with a DOT 4 base suitable for the demands of motorsport (such as low compressibility and low viscosity). It has a dry boiling point of 336 degrees Celsius which is higher than the Brembo HT64. Whilst withstanding the demands of motorsport, Halo GT is suitable for track day use.

Brake Later. Release Faster. Accelerate earlier. Every Lap.

Halo GT is the ultimate DOT 4 racing brake fluid, fully compliant and optimized for the latest racing ABS systems. Engineered for ultra-fast response, thermal stability, and consistent pedal feel under the most demanding race conditions.

FEATURES

01 | Derived from P1 Proven under extreme conditions. Built on Halo P1 chemistry, developed for the highest demands of motorsport.

02 | Designed for GT racing The ultimate in DOT 4 racing brake fluid, fully compliant and optimized for use with the latest racing ABS systems.

03 | Ultra low viscosity Faster system response for immediate feedback and precise control.

04 | Fade Resistant Technology™ Performance that lasts. Maintains consistent pedal feel under repeated heat cycles with minimal fade as temperatures rise.

05 | Corner focused Control where it matters most. Optimised for braking zones, release precision, and clean transition back to throttle.


Performance benefits

Sharper response. Better control. Faster exits from start to finish.
•  Faster hydraulic response under load
•  Greater stability through repeated braking cycles
•  Quicker piston release for reduced drag
•  More precise brake modulation
•  Reduced thermal stress in extreme conditions
•  Earlier throttle application on corner exit

Speed of Response.
Speed on Track. Modern Braking Systems demand instant response. Halo GT’s ultra-low viscosity allows the brake system to respond faster, improving communication between driver and car.
Faster pressure build-up. Cleaner release. Greater control at the limit.
Brake later. Release faster. Accelerate earlier.

Most races are won in the corner.
Anyone can be fast on the straight. But cornering takes skill. Performance is defined under braking, through release, and on exit. Halo GT is engineered for these moments. Giving drivers the confidence to brake faster, carry speed through the corner, and accelerate earlier. And continue to do that consistently, lap after lap.

For GT drivers who understand Performance.
Not for Everyone. Built for those who demand more.
Also suitable for Semi-Pro, Club Racing and Trackday performance drivers.

Technical Specification.

•  336°C dry boiling point
•  Ultra-low viscosity of 1350 cSt

Designed to maintain consistent performance under heat and repeated load, with full data available for detailed evaluation.



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

GTEUK198L2
00004320209
00004320366
00004321082
00004330552

The product you are viewing cross references to these numbers
Hydra tec lubricant for maintenance work and protection Textar - 81001401, 81001400, 81001500
3
Hydra tec lubricant for maintenance work and protection Textar
81001
Product Information
Product Information

Hydra tec lubricant for maintenance work and protection Textar

Available in 75ml Tube or 5ml Sachet

The Advantages of Hydra Tec:

  • Facilitates the installation of hydraulic brake components
  • Tested compatibility with commercially available braking fluids (DOT3, DOT4, DOT4LV, DOT5.1)
  • Free of mineral oils and compatible with EPDM rubber
  • In addition, running surfaces are protected against corrosion

Hydra Tec is suitable for lubricating:

  • Cylinder running surfaces
  • Pistons
  • Sealing elements

Application:
Apply a thin layer of Hydra Tec on the marked sections.

Note:
Hydra Tec should be applied thinly and evenly. 
Never use mineral oils or greases as substitutes.
Do not apply the product on friction surfaces of brake pads or brake discs.

Find out about Textar product verification here

Performance Front Brake Caliper Piston and Seal Kit 30mm, 32mm and 34mm. Porsche 991 S / 4S / 991 turbo - 95135291701, 99635191500, 96535291701 - 673006
1
Performance Front Brake Caliper Piston and Seal Kit 30mm, 32mm and 34mm. Porsche 991 S / 4S / 991 turbo
991006375
Product Information
Product Information

High Temperature Performance Brake Caliper Seal Kit Upgrade Kit 30mm, 32mm and 38mm 
1 kit per caliper - 2 required per car

Upgrade and restore your Porsche braking system with this High Temperature Performance Brake Caliper Seal & Piston Upgrade Kit, specifically engineered for Porsche 991 Carrera 2S, Carrera 4S, GTS and turbo models.

Fits:

  • Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
  • Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
  • Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
  • Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
  • Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
  • Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19

Part of the advanced Performance Range, this comprehensive caliper rebuild kit combines replacement pistons with upgraded high-temperature sealing components, delivering exceptional durability and reliability under demanding braking conditions.

Kit Contents
• 2 x 30mm Pistons
• 2 x 30mm Performance Dust Seals
• 2 x 30mm Performance Piston Seals
• 2 x 32mm Pistons
• 2 x 32mm Performance Dust Seals
• 2 x 32mm Performance Piston Seals
• 2 x 34mm Pistons
• 2 x 34mm Performance Dust Seals
• 2 x 34mm Performance Piston Seals
• 2 x Bleed Nipple Dust Covers

Designed for fast road driving, spirited use, track days and high-performance Porsche applications, this kit helps maintain optimum brake caliper performance when subjected to repeated heavy braking and elevated operating temperatures.

Unlike conventional rebuild kits, the Performance Range incorporates upgraded silicone dust seals and enhanced thermal-resistant piston seals that are specifically engineered to withstand the extreme temperatures generated by modern high-performance braking systems.

Performance Range Key Advantages

High-Temperature Silicone Dust Seals

Performance Range kits utilise premium silicone dust seals in place of conventional OEM-style EPDM dust boots.

Benefits include:

• Superior resistance to elevated brake temperatures
• Improved flexibility during repeated heat cycles
• Increased durability under demanding braking conditions
• Reduced risk of heat-related seal deterioration
• Enhanced protection against dirt, moisture and contamination

Enhanced Thermal-Resistant Piston Seals

The piston seals are manufactured from an upgraded EPDM compound specifically developed for high-performance braking environments.

Advantages include:

• Improved thermal resistance
• Enhanced sealing performance
• Greater long-term durability
• Increased resistance to thermal fatigue
• Consistent caliper operation under extreme braking loads

Why Choose the Performance Range?

Modern Porsche 991 models generate significant braking forces, particularly during spirited driving and track use. The upgraded materials used throughout the Performance Range help maintain caliper performance and sealing integrity when exposed to:

• Repeated heavy braking cycles
• High operating temperatures
• Fast road driving
• Track-day environments
• Motorsport-inspired applications
• Aggressive driving conditions

This makes the kit an ideal preventative maintenance upgrade for Porsche owners seeking enhanced brake system reliability and performance.

Ideal Applications

Perfect for:

• Porsche 991 Carrera 2S
• Porsche 991 Carrera 4S
• Porsche 991 GTS
• Porsche 991 Turbo
• Fast road driving
• Track-day use
• Motorsport-inspired builds
• Performance brake system rebuilds
• Vehicles subjected to repeated heavy braking cycles





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

991006375
95135291701
99635191500
96535291701

The product you are viewing cross references to these numbers
Performance Front Brake Caliper Piston and Seal Kit 30mm. Porsche 991 GT3 / GT3 RS - 99135191380 - 673008
1
Performance Front Brake Caliper Piston and Seal Kit 30mm. Porsche 991 GT3 / GT3 RS
991008673
Product Information
Product Information

High Temperature Performance Brake Caliper Seal Kit Upgrade Kit 30mm
1 kit per caliper - 2 required per car

Upgrade and restore your Porsche braking system with this High Temperature Performance Brake Caliper Seal & Piston Upgrade Kit, specifically developed for Porsche 991 GT3 and Porsche 991 GT3 RS models.

Fits:

  • Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
  • Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
  • Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19

Part of the advanced Performance Range, this premium caliper rebuild kit combines replacement pistons with upgraded high-temperature sealing components, delivering exceptional durability, reliability, and braking consistency under the most demanding driving conditions.

Kit Contents
• 6 x 30mm Pistons
• 6 x 30mm Performance Dust Seals
• 6 x 30mm Performance Piston Seals
• 2 x Bleed Nipple Dust Covers

Designed for fast road driving, track-day use, club motorsport, and high-performance Porsche applications, this kit helps maintain optimum brake caliper performance when subjected to repeated heavy braking and extreme operating temperatures.

Unlike conventional rebuild kits, the Performance Range incorporates upgraded silicone dust seals and enhanced thermal-resistant piston seals specifically engineered to withstand the elevated temperatures generated by GT3 and GT3 RS braking systems.

Performance Range Key Advantages

High-Temperature Silicone Dust Seals

Performance Range kits utilise premium silicone dust seals in place of conventional OEM-style EPDM dust boots.

Benefits include:

• Superior resistance to elevated brake temperatures
• Improved flexibility during repeated thermal cycles
• Enhanced durability during aggressive driving and track use
• Reduced risk of heat-related seal degradation
• Improved protection against dirt, moisture, and contamination

Enhanced Thermal-Resistant Piston Seals

The piston seals are manufactured from an upgraded EPDM compound specifically developed for high-performance braking environments.

Advantages include:

• Increased thermal resistance
• Improved sealing performance under load
• Enhanced long-term durability
• Greater resistance to heat-induced fatigue
• Consistent caliper operation during repeated heavy braking

Why Choose the Performance Range?

The Porsche 991 GT3 and GT3 RS are designed to operate at the highest levels of performance, generating enormous braking loads and temperatures during spirited road driving and track use.

The upgraded materials used throughout the Performance Range help maintain brake caliper integrity and sealing performance when exposed to:

• Repeated heavy braking cycles
• Extreme brake temperatures
• Fast road driving
• Track-day environments
• Motorsport-inspired applications
• Competitive driving conditions

This makes the kit an ideal preventative maintenance upgrade for owners seeking enhanced reliability and durability from their Porsche braking system.

Ideal Applications

Perfect for:

• Porsche 991 GT3
• Porsche 991 GT3 RS
• Fast road driving
• Track-day use
• Motorsport-inspired builds
• Club racing applications
• Performance brake system rebuilds
• Vehicles subjected to repeated heavy braking cycles



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

991008673
99135191380

The product you are viewing cross references to these numbers
Performance Front Brake Caliper Seal Kit 30mm 32mm and 34mm. Porsche 718 Boxster / Cayman / 991 / 992.1 - 95135291701, 99635191500, 96535291700 - 663005
1
Performance Front Brake Caliper Seal Kit 30mm 32mm and 34mm. Porsche 718 Boxster / Cayman / 991 / 992.1
718005663
Product Information
Product Information

Performance Brake Caliper Seal Kit – High Temperature Porsche Brake Upgrade 
1 kit per caliper - 2 required per car

Upgrade your Porsche braking system with this Performance Brake Caliper Seal Kit, specifically developed for fast road driving, track-day use, and high-performance applications where elevated braking temperatures place increased stress on brake components.

Fits:

  • Porsche Boxster 981 S / GTS 3.4L 2012-16
  • Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
  • Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
  • Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
  • Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
  • Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
  • Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
  • Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
  • Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
  • Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
  • Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
  • Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
  • Porsche Cayman GTS 718 4.0L PDK (400 Bhp)

Please check piston diameter before ordering

The Performance Range has been engineered as an advanced brake system upgrade, using enhanced materials designed to deliver superior durability, improved thermal resistance, and long-term sealing performance under demanding driving conditions.

Kit contains
2 x 30mm Performance Dust Seals
2 x 32mm Performance Dust Seals
2 x 34mm Performance Dust Seals
2 x 30mm Performance Piston Seals
2 x 32mm Performance Piston Seals
2 x 34mm Performance Piston Seals
2 x Bleed Nipple Dust Covers

Unlike standard OEM-style rebuild kits, the Performance Range incorporates upgraded high-temperature materials specifically selected to withstand repeated heavy braking cycles and extreme thermal loads experienced during spirited driving and motorsport-inspired use.

Ideal for Porsche owners seeking improved brake caliper reliability and durability for road, fast road, and track applications.

Key Features

• Performance brake caliper seal kit
• Designed for high-performance Porsche braking systems
• Engineered for fast road and track use
• Improved thermal resistance over OEM-style kits
• Enhanced durability during repeated heavy braking
• Helps maintain brake caliper sealing integrity
• Suitable for motorsport-inspired Porsche builds

Performance Range – Designed for Demanding Driving Conditions

The Performance Range has been specifically developed as a brake system upgrade for applications exposed to higher thermal loads and intensive braking use.

Perfect for:
• Fast road driving
• Spirited performance use
• Track-day applications
• Motorsport-inspired Porsche builds
• Vehicles subjected to repeated heavy braking cycles

The upgraded materials help maintain consistent sealing performance and durability under conditions where standard OEM-style components may deteriorate more quickly.

High-Temperature Silicone Dust Boots

Performance kits use silicone piston dust boots instead of traditional OEM-style EPDM rubber dust seals.

Silicone offers:
• Improved resistance to elevated brake temperatures
• Increased flexibility during heat cycles
• Better long-term durability under demanding use
• Enhanced protection against contamination
• Reduced risk of heat-related deterioration

Ideal for performance braking systems exposed to sustained high temperatures.

Enhanced Thermal-Resistant Piston Seals

The piston seals are manufactured using an upgraded EPDM compound specifically developed for improved thermal resistance and reliability during aggressive driving conditions.

Advantages include:
• Greater resistance to heat-related wear
• Improved hydraulic sealing performance
• Enhanced durability under repeated braking loads
• Long-term reliability for performance applications
• Better protection for brake caliper internals

Why Choose the Performance Range?

The upgraded materials used throughout the Performance Range help improve brake caliper reliability when exposed to extreme heat and repeated high-load braking.

This makes the kit particularly suitable for:
• Porsche GT and RS models
• Fast road performance builds
• Track-day vehicles
• Upgraded braking systems
• Enthusiasts seeking motorsport-level durability



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

718005663
95135291701
99635191500
96535291700

The product you are viewing cross references to these numbers
Performance Front Brake Caliper Seal Kit 30mm. Porsche 981 / 718 Spyder / GT4 / 991 GT3 - 99135191380 - 663001
1
Performance Front Brake Caliper Seal Kit 30mm. Porsche 981 / 718 Spyder / GT4 / 991 GT3
718001663
Product Information
Product Information

Performance Brake Caliper Seal Kit – High Temperature Porsche Brake Upgrade
1 kit per caliper - 2 required per car

Upgrade your Porsche braking system with this Performance Brake Caliper Seal Kit, specifically developed for fast road driving, track-day use, and high-performance applications where elevated braking temperatures place increased stress on brake components.

Fits:

  • Porsche 718 Boxster Spyder 4.0L 01/2019>> (not Spyder RS)
  • Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
  • Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
  • Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
  • Porsche Cayman GT4 3.8L 2015-16
  • Porsche Cayman GT4 718 4.0L 718 4.0L (not GT4 RS)
  • Porsche 918 Spyder 4.6L 2014-15

The Performance Range has been engineered as an advanced brake system upgrade, using enhanced materials designed to deliver superior durability, improved thermal resistance, and long-term sealing performance under demanding driving conditions.

Kit contains
6x 30mm Performance Dust Seals
6 x 30mm Performance Piston Seals
2 x Bleed Nipple Dust Covers

Unlike standard OEM-style rebuild kits, the Performance Range incorporates upgraded high-temperature materials specifically selected to withstand repeated heavy braking cycles and extreme thermal loads experienced during spirited driving and motorsport-inspired use.

Ideal for Porsche owners seeking improved brake caliper reliability and durability for road, fast road, and track applications.

Key Features

• Performance brake caliper seal kit
• Designed for high-performance Porsche braking systems
• Engineered for fast road and track use
• Improved thermal resistance over OEM-style kits
• Enhanced durability during repeated heavy braking
• Helps maintain brake caliper sealing integrity
• Suitable for motorsport-inspired Porsche builds

Performance Range – Designed for Demanding Driving Conditions

The Performance Range has been specifically developed as a brake system upgrade for applications exposed to higher thermal loads and intensive braking use.

Perfect for:
• Fast road driving
• Spirited performance use
• Track-day applications
• Motorsport-inspired Porsche builds
• Vehicles subjected to repeated heavy braking cycles

The upgraded materials help maintain consistent sealing performance and durability under conditions where standard OEM-style components may deteriorate more quickly.

High-Temperature Silicone Dust Boots

Performance kits use silicone piston dust boots instead of traditional OEM-style EPDM rubber dust seals.

Silicone offers:
• Improved resistance to elevated brake temperatures
• Increased flexibility during heat cycles
• Better long-term durability under demanding use
• Enhanced protection against contamination
• Reduced risk of heat-related deterioration

Ideal for performance braking systems exposed to sustained high temperatures.

Enhanced Thermal-Resistant Piston Seals

The piston seals are manufactured using an upgraded EPDM compound specifically developed for improved thermal resistance and reliability during aggressive driving conditions.

Advantages include:
• Greater resistance to heat-related wear
• Improved hydraulic sealing performance
• Enhanced durability under repeated braking loads
• Long-term reliability for performance applications
• Better protection for brake caliper internals

Why Choose the Performance Range?

The upgraded materials used throughout the Performance Range help improve brake caliper reliability when exposed to extreme heat and repeated high-load braking.

This makes the kit particularly suitable for:
• Porsche GT and RS models
• Fast road performance builds
• Track-day vehicles
• Upgraded braking systems
• Enthusiasts seeking motorsport-level durability



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

718001663
99135191380

The product you are viewing cross references to these numbers
Performance Front Brake Caliper Seal Kit 32m. Porsche 991 turbo / GT2 RS with PCCB - 9P1698671A, 99135291780 - 663202
1
Performance Front Brake Caliper Seal Kit 32m. Porsche 991 turbo / GT2 RS with PCCB
991202663
Product Information
Product Information
Performance Brake Caliper Seal Kit – High Temperature Porsche Brake Upgrade - for cars with PCCB
1 kit per caliper - 2 required per car


Upgrade and restore your Porsche braking system with this High Temperature Performance Brake Caliper Seal Upgrade Kit, specifically engineered for Porsche 991 Turbo and Porsche GT2 RS models equipped with Porsche Ceramic Composite Brakes (PCCB).

Fits:

  • Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
  • Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
  • Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
  • Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
  • Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
  • Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19

Developed as part of the advanced Performance Range, this premium caliper rebuild kit features upgraded high-temperature sealing components designed to withstand the extreme braking loads and temperatures generated by Porsche's most powerful road and track-focused vehicles.

Kit Contents
• 6 x 32mm Performance Dust Seals
• 6 x 32mm Performance Piston Seals
• 2 x Bleed Nipples
• 2 x Bleed Nipple Dust Covers

Whether used for fast road driving, spirited mountain routes, track days, or motorsport-inspired applications, this kit helps maintain optimal brake caliper performance and reliability under demanding conditions.

Unlike conventional seal kits, the Performance Range incorporates upgraded silicone dust seals and enhanced thermal-resistant piston seals specifically developed to provide superior durability and heat resistance during repeated heavy braking cycles.

Performance Range Key Advantages

High-Temperature Silicone Dust Seals

Performance Range kits utilise premium silicone dust seals instead of traditional OEM-style EPDM rubber dust boots.

Benefits include:

• Exceptional resistance to elevated brake temperatures
• Improved flexibility during repeated thermal cycles
• Increased durability under demanding braking conditions
• Reduced risk of heat-related seal degradation
• Enhanced protection against dirt, moisture and contamination

Enhanced Thermal-Resistant Piston Seals

The piston seals are manufactured using an upgraded EPDM compound developed specifically for high-performance braking applications.

Advantages include:

• Increased resistance to extreme operating temperatures
• Improved sealing performance under heavy braking loads
• Enhanced long-term reliability
• Greater resistance to thermal fatigue
• Consistent caliper operation during demanding use

Why Choose the Performance Range?

The Porsche 991 Turbo and GT2 RS equipped with PCCB braking systems are capable of generating immense braking forces and temperatures. During fast road driving and track use, brake components are subjected to extreme thermal loads that can accelerate wear on standard caliper seals.

The upgraded materials used throughout the Performance Range help maintain brake caliper efficiency and sealing integrity when exposed to:

• Repeated heavy braking cycles
• High operating temperatures
• Fast road driving
• Track-day environments
• Motorsport-inspired applications
• High-performance driving conditions

This makes the kit an ideal preventative maintenance upgrade for Porsche owners seeking maximum brake system durability and reliability.

Ideal Applications

Perfect for:

• Porsche 991 Turbo with PCCB
• Porsche 991 GT2 RS with PCCB
• Fast road driving
• Track-day use
• Motorsport-inspired builds
• High-performance brake system maintenance
• Brake caliper refurbishment projects
• Vehicles subjected to repeated heavy braking cycles



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

991202663
9P1698671A
99135291780

The product you are viewing cross references to these numbers
Performance Rear Brake Caliper Seal Kit 34mm. Porsche 981 / 718 Spyder / GT4 / 991 GT3 - 96535291700 - 663404
1
Performance Rear Brake Caliper Seal Kit 34mm. Porsche 981 / 718 Spyder / GT4 / 991 GT3
718404663
Product Information
Product Information

Performance Brake Caliper Seal Kit – High Temperature Porsche Brake Upgrade
1 kit per caliper - 2 required per car

Upgrade your Porsche braking system with this Performance Brake Caliper Seal Kit, specifically developed for fast road driving, track-day use, and high-performance applications where elevated braking temperatures place increased stress on brake components.

Fits:

  • Porsche Boxster Spyder 718 4.0L 01/2019>>
  • Porsche 997 MK1 TURBO 2007-09
  • Porsche 997 MK1 GT3 2007-09
  • Porsche 997 MK1 GT2 2007-09
  • Porsche 997 MKII Turbo 2010-13
  • Porsche 997 MKII GT2 RS 2011-13
  • Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
  • Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
  • Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
  • Porsche Cayman GT4 3.8L 2015-16
  • Porsche Cayman GT4 718 4.0L 718 4.0L
  • Porsche 918 Spyder 4.6L 2014-15

Please check piston diameters before ordering

The Performance Range has been engineered as an advanced brake system upgrade, using enhanced materials designed to deliver superior durability, improved thermal resistance, and long-term sealing performance under demanding driving conditions.

Kit contains
4 x 34mm Performance Dust Seals
4 x 34mm Performance Piston Seals
2 x Bleed Nipple Dust Covers

Unlike standard OEM-style rebuild kits, the Performance Range incorporates upgraded high-temperature materials specifically selected to withstand repeated heavy braking cycles and extreme thermal loads experienced during spirited driving and motorsport-inspired use.

Ideal for Porsche owners seeking improved brake caliper reliability and durability for road, fast road, and track applications.

Key Features

• Performance brake caliper seal kit
• Designed for high-performance Porsche braking systems
• Engineered for fast road and track use
• Improved thermal resistance over OEM-style kits
• Enhanced durability during repeated heavy braking
• Helps maintain brake caliper sealing integrity
• Suitable for motorsport-inspired Porsche builds

Performance Range – Designed for Demanding Driving Conditions

The Performance Range has been specifically developed as a brake system upgrade for applications exposed to higher thermal loads and intensive braking use.

Perfect for:
• Fast road driving
• Spirited performance use
• Track-day applications
• Motorsport-inspired Porsche builds
• Vehicles subjected to repeated heavy braking cycles

The upgraded materials help maintain consistent sealing performance and durability under conditions where standard OEM-style components may deteriorate more quickly.

High-Temperature Silicone Dust Boots

Performance kits use silicone piston dust boots instead of traditional OEM-style EPDM rubber dust seals.

Silicone offers:
• Improved resistance to elevated brake temperatures
• Increased flexibility during heat cycles
• Better long-term durability under demanding use
• Enhanced protection against contamination
• Reduced risk of heat-related deterioration

Ideal for performance braking systems exposed to sustained high temperatures.

Enhanced Thermal-Resistant Piston Seals

The piston seals are manufactured using an upgraded EPDM compound specifically developed for improved thermal resistance and reliability during aggressive driving conditions.

Advantages include:
• Greater resistance to heat-related wear
• Improved hydraulic sealing performance
• Enhanced durability under repeated braking loads
• Long-term reliability for performance applications
• Better protection for brake caliper internals

Why Choose the Performance Range?

The upgraded materials used throughout the Performance Range help improve brake caliper reliability when exposed to extreme heat and repeated high-load braking.

This makes the kit particularly suitable for:
• Porsche GT and RS models
• Fast road performance builds
• Track-day vehicles
• Upgraded braking systems
• Enthusiasts seeking motorsport-level durability



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

718404663
96535291700

The product you are viewing cross references to these numbers
Rear Brake Caliper Piston and Seal Kit 44mm. Porsche 981 / 718 GT4 / 718 Spyder / 991 GT3 / 997 GT3 / GT2 / turbo - 96535291700 - 234989
1
Rear Brake Caliper Piston and Seal Kit 44mm. Porsche 981 / 718 GT4 / 718 Spyder / 991 GT3 / 997 GT3 / GT2 / turbo
718989234
Product Information
Product Information

Rear Brake Caliper Piston & Seal Kit - 4 Piston 34mm Rear Calipers
1 kit per caliper - 2 required per car

High-quality rear brake caliper piston and seal kit designed for Porsche 4 piston rear brake calipers with 34mm pistons. This complete rebuild kit restores braking performance, hydraulic sealing, and smooth piston operation on high-performance Porsche models.

Fits:

  • Porsche Boxster Spyder 718 4.0L 01/2019>>
  • Porsche 997 MK1 TURBO 2007-09
  • Porsche 997 MK1 GT3 2007-09
  • Porsche 997 MK1 GT2 2007-09
  • Porsche 997 MKII GT3 2010-11
  • Porsche 997 MKII Turbo 2010-13
  • Porsche 997 MKII GT2 RS 2011-13
  • Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
  • Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
  • Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
  • Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
  • Porsche Cayman GT4 3.8L 2015-16
  • Porsche Cayman GT4 718 4.0L 


Manufactured to OEM specifications, these components ensure precise fitment, excellent durability, and reliable braking performance. Ideal for routine maintenance, brake system servicing, or performance rebuilds on Porsche GT and turbo models.

Kit contains
4 x 34mm caliper pistons
4 x 34mm piston dust caps
4 x 34mm piston seals
2 x bleed covers

Please check piston diameters before ordering

 Key Features

• Rear brake caliper piston and seal kit
• Designed for 4 piston rear brake calipers
• Suitable for 34mm pistons
• OEM-quality materials for reliability and durability
• Restores braking performance and hydraulic sealing
• Ideal for brake caliper rebuilds and maintenance

Function and Purpose

This kit is essential for restoring rear brake caliper operation.

It helps to:
• Replace worn or corroded caliper pistons
• Restore hydraulic sealing and pressure retention
• Maintain smooth piston movement
• Protect against dirt and moisture contamination
• Support consistent braking performance

Why Replace Brake Pistons & Seals?

Brake components wear over time due to heat, pressure, and contamination.

Common issues include:
• Brake fluid leaks
• Corroded or sticking pistons
• Uneven braking performance
• Reduced braking efficiency
• Damaged dust caps and seals

Replacing pistons and seals together restores braking reliability, safety, and caliper performance.



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

718989234
96535291700

The product you are viewing cross references to these numbers
Rear Brake Caliper Piston Dust Cap and Seal Kit 44mm. Porsche 981 / 718 GT4 / 718 Spyder / 991 GT3 / 997 GT3 / GT2 / turbo - 96535291700 - 234091
1
Rear Brake Caliper Piston Dust Cap and Seal Kit 44mm. Porsche 981 / 718 GT4 / 718 Spyder / 991 GT3 / 997 GT3 / GT2 / turbo
718091234
Product Information
Product Information

Rear Brake Caliper Dust Cap & Seal Kit  4 Piston 34mm Rear Calipers
1 kit per caliper - 2 required per car

High-quality rear brake caliper dust cap and seal kit designed for the 4 piston rear brake calipers with 34mm pistons. This complete rebuild kit restores braking performance, caliper sealing, and piston protection on high-performance Porsche models.

Fits:

  • Porsche Boxster Spyder 718 4.0L 01/2019>>
  • Porsche 997 MK1 TURBO 2007-09
  • Porsche 997 MK1 GT3 2007-09
  • Porsche 997 MK1 GT2 2007-09
  • Porsche 997 MKII GT3 2010-11
  • Porsche 997 MKII Turbo 2010-13
  • Porsche 997 MKII GT2 RS 2011-13
  • Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
  • Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
  • Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
  • Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
  • Porsche Cayman GT4 3.8L 2015-16
  • Porsche Cayman GT4 718 4.0L 

Kit includes
4 x 34mm piston dust caps
4 x 34mm piston seals
2 x bleed covers

Manufactured to OEM specifications, these components ensure precise fitment, reliable hydraulic sealing, and long-term durability. Ideal for routine brake maintenance, performance servicing, or complete caliper restoration.

Key Features

• Rear brake caliper dust cap and seal kit
• Suitable for 34mm pistons
• OEM-quality materials for durability and reliability
• Restores hydraulic sealing and piston protection
• Ideal for brake caliper rebuilds and servicing
• Suitable for road and performance applications

Function and Purpose

This kit is essential for rear brake caliper maintenance.

It helps to:
• Restore proper caliper hydraulic sealing
• Protect pistons from dirt and moisture contamination
• Maintain smooth piston movement
• Prevent brake fluid leaks
• Support consistent braking performance

Why Replace Brake Caliper Seals & Dust Caps?

Brake caliper seals and dust caps wear over time due to heat and contamination.

Common issues include:
• Brake fluid leaks
• Cracked or damaged dust caps
• Corrosion around pistons
• Reduced braking efficiency
• Sticking or uneven piston movement

Replacing seals and dust caps restores safe and reliable braking operation.



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

718091234
96535291700

The product you are viewing cross references to these numbers
Titanium replacement pistons for brembo calipers - 1055955, 105595528, 105595530, 105595532, 105595534, 105595536, 105595538, 105595540, 105595544
1
Titanium replacement pistons for brembo calipers
SL-BKP-
Product Information
Product Information
Titanium Alloy Replacement Piston for Brembo Calipers

silverlake

Titanium is a very poor conductor of heat, and reduces the heat transfer by approximately 90%
The standard aluminum brake pistons are light but very heat conductive which means the thermal energy from the brake pad transfers easily to the brake fluid.

The castellated contact edge promotes airflow into the piston cavity and reduces the contact surface with the pad and thus further decreases heat transfer to the brake fluid.

We designed using advanced engineering simulations (FEA) to achieve the same weight than their aluminum counterparts while maintaining superior structural strength.

As opposed to stainless steel pistons, our titanium alloy pieces weigh the same as the original aluminum pistons; and they will never corrode and damage the seals causing the caliper to leak.

Price is per pair of pistons

**Please check the piston diameter you need as some calipers take two different sizes. Sizes shown are the piston outer diameter (OD)

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

SL-BKP-
1055955
105595528
105595530
105595532
105595534
105595536
105595538
105595540
105595544

The product you are viewing cross references to these numbers
DISPLAYING 17 to 27 (of 27 products)
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About Caliper Seals |Pistons

Porsche Caliper Seals & Pistons | Design911 Precision Hydraulic Components for Restoring Braking Power & Reliability

Caliper seals and pistons are vital hydraulic components in your Porsche’s braking system, ensuring smooth, consistent, and powerful brake performance. The piston transfers hydraulic pressure to the brake pads, while the seals maintain fluid integrity, preventing leaks and contamination. Over time, wear, heat, and moisture can compromise these parts — reducing braking efficiency and safety. Replacing caliper seals and pistons is essential for maintaining consistent pressure, pedal feel, and reliability.

At Design911, we offer a comprehensive range of caliper seals and pistons, engineered for precision fitment and durability. Each component is crafted from high-grade materials designed to resist corrosion, heat, and hydraulic fluid degradation. Perfect for servicing, performance upgrades, or complete caliper restoration, these components restore your Porsche’s braking response and ensure long-term dependability.

What Do Caliper Seals & Pistons Do?

These two components work together to create and maintain the hydraulic pressure that powers your Porsche’s braking system.

Core Functions:
• Pistons convert hydraulic pressure into clamping force against the brake pads.
• Seals prevent brake fluid leakage and maintain system pressure.
• Ensure smooth piston retraction for consistent pad contact.
• Protect against contaminants, moisture, and corrosion.
• Maintain balanced braking and pedal feel across all wheels.

High-quality seals and pistons ensure your Porsche delivers the stopping power, responsiveness, and control expected of its engineering pedigree.

Why Do Caliper Seals & Pistons Fail or Degrade?

Due to their exposure to heat, pressure, and environmental factors, these parts naturally deteriorate over time — especially in performance or high-mileage vehicles.

Common Causes of Failure Include:
• Seal wear or cracking from age and fluid degradation.
• Corrosion or pitting on pistons caused by moisture ingress.
• Brake fluid contamination leading to swelling or hardening.
• Heat damage from aggressive braking or track use.
• Improper installation or infrequent brake servicing.

When seals or pistons fail, symptoms such as fluid leaks, uneven braking, or sticking calipers can occur — compromising braking safety and performance.

Why Replace or Upgrade Your Porsche Caliper Seals & Pistons?

Replacing these components restores full hydraulic integrity and smooth brake operation. Design911’s premium-grade seals and pistons are designed for longevity, precision, and compatibility across Porsche models — ensuring reliability under road or track conditions.

Key Benefits:
• Restores consistent braking pressure and pedal feel.
• Prevents leaks and contamination in the hydraulic system.
• Improves caliper response and even brake pad wear.
• Manufactured from corrosion- and heat-resistant materials.
• Direct-fit design for fast, accurate installation.
• Ideal for restorations, rebuilds, or performance upgrades.

Design911’s Porsche caliper seals and pistons deliver unmatched performance and durability, helping your Porsche maintain the sharp braking response it was built for.

Highlights

• High-quality Porsche caliper seals and pistons for all models.
• Precision-engineered for hydraulic efficiency and longevity.
• Resistant to corrosion, high heat, and fluid degradation.
• Essential for brake caliper rebuilds or restorations.
• Improves pedal feel and braking consistency.
• Perfect for classic and modern Porsche vehicles.

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