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Porsche > 991 (911) MK1 2012-2016 > Brakes >

Caliper Seals |Pistons

Caliper Seals |Pistons

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DISPLAYING 17 to 21 (of 21 products)
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Front Caliper Seal and Dust Cover Kit for 6 Piston Calipers. Porsche 718 Boxster / Cayman / 991 / 992 - 9P1698671, 9P1698671A, 9P1698671B - 230047
1
Front Caliper Seal and Dust Cover Kit for 6 Piston Calipers. Porsche 718 Boxster / Cayman / 991 / 992
991047230
Product Information
Product Information

Front Brake Caliper Dust Cap & Seal Kit - for Steel Discs Only
1 kit per caliper - 2 required per car

High-quality front brake caliper dust cap and seal kit designed for Porsche 718 Boxster, Cayman, 991, and 992 models with steel discs. This comprehensive kit includes multiple piston sizes to suit modern multi-piston front calipers, ensuring precise fitment and reliable braking performance.

Fits:

  • 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 2 3.0L 2019-24
  • Porsche 992.1 Carrera 4 3.0L 2019-24
  • Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
  • 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 992.1 Targa 4 3.0L 2020-24
  • Porsche 992.1 Targa 4S / GTS 3.0L 2020-24
    for 992.1 cars with Option Codes E0A and E2M

  • Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
  • Porsche Cayman GTS 718 4.0L PDK (400 Bhp)

Kit contains
2 x 30mm piston dust caps
2 x 32mm piston dust caps
2 x 34mm piston dust caps
2 x 30mm piston seals
2 x 32mm piston seals
2 x 34mm piston seals
2 x bleed nipple covers

Manufactured to OEM standards, this kit ensures effective hydraulic sealing, protects internal components from dirt and moisture, and supports smooth piston operation for consistent braking performance. Ideal for maintenance, repair, or front caliper rebuilds.

Key Features

• Front brake caliper dust cap and seal kit
• Designed for Porsche 718, 991, and 992 front calipers
• Suitable for multi-piston braking systems
• Maintains hydraulic pressure and sealing integrity
• Protects against contamination and corrosion
• OEM-quality materials for durability and performance

Function and Purpose

This kit is essential for maintaining front brake caliper performance.

It helps to:
• Seal brake fluid within the caliper system
• Protect pistons from dirt, debris, and moisture
• Maintain consistent braking pressure
• Ensure smooth and balanced piston movement
• Prevent corrosion and internal wear

Why Replace Front Caliper Seals

Brake seals are exposed to high temperatures and constant pressure.

Common issues include:
• Brake fluid leaks
• Reduced braking efficiency
• Uneven piston movement
• Sticking or binding calipers
• Contamination leading to corrosion

Replacing seals restores braking performance, safety, and reliability.



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

991047230
9P1698671
9P1698671A
9P1698671B

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

Rear Brake Caliper Piston and Seal Kit 44mm. Porsche 981 / 718 GT4 / 718 Spyder / 991 GT3 / 997 GT3 / GT2 / turbo - 99135291780, 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 

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

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.

 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
99135291780
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 - 99135291780, 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
99135291780
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 21 (of 21 products)
1 2
Also found on these pages
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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