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Porsche specialists based in the UK
Porsche 911 & 912 (1965-1989) Brakes

Caliper Seals |Pistons

Caliper Seals |Pistons

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DISPLAYING 1 to 16 (of 44 products)
1 2 3
Brake Caliper Bleed Nipple Porsche 911/ 914 / 924 / 928 / 944 - 90135297710
5
Brake Caliper Bleed Nipple Porsche 911/ 914 / 924 / 928 / 944
Special Order item
90135297710
Product Information
Product Information
Brake Caliper Bleed Nipple.
REAR / FRONT

front
Porsche 911 / 912 1965-68 FRONT
Porsche 911T/912 1969 FRONT
Porsche 911T / 911T-V / 911 T-E / 911 E 1970-73 FRONT
Porsche 911 / 911S m-caliper 1974-77 FRONT

rear
Porsche 911 1969-77 REAR
Porsche 911 SC 1978-83 REAR
Porsche 911 Carrera 1984-89 REAR
Porsche 911 Turbo 1975-77 REAR

front
Porsche 914-6 1970-76 FRONT
rear
Porsche 914-6/4 SB 1970-76 REAR
Porsche 924 TURBO / GT 1976-85 REAR
Porsche 924 S 1986-88 REAR
Porsche 928 1978-86 REAR
Porsche 944 1982-89 REAR

Click 'Zoom in' for large parts diagram.
Diagram ref no 12.

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90135297710
90135297710

The product you are viewing cross references to these numbers
Brake Caliper Piston Scraper Ring. Porsche 911 Turbo 1978-89 - 93035154700
3
Brake Caliper Piston Scraper Ring. Porsche 911 Turbo 1978-89
Special Order item
93035154700
Product Information
Product Information
Brake Caliper Piston Scraper Ring.
Fits FRONT 38mm Piston.

Fits:
Porsche 911 (930) Turbo 1978>>1989

Diagram Ref No 37

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Related, superseded, cross reference or alternative numbers for comparison.

93035154700
93035154700

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Brake caliper piston scraper ring. Porsche 911 Turbo 78-89 - 93035154700 - URO-013917
3
Brake caliper piston scraper ring. Porsche 911 Turbo 78-89
93035154700/1
Product Information
Product Information

Brake Caliper Piston Scraper Ring

The OE Match Brake Caliper Piston Scraper Ring is a replacement dust protection component for the front brake calipers fitted to Porsche 911 Turbo (930) 3.3L models manufactured between 1978 and 1989.

front
Fits:

  • Porsche 911 1978-1989 3.3L Turbo (930)   

Diagram ref no 37     

Designed for front brake calipers with 38mm pistons, this scraper ring helps protect the piston and surrounding sealing area from brake dust, dirt, moisture and road contamination.

A damaged or deteriorated scraper ring can allow contaminants to accumulate around the brake piston, increasing the risk of corrosion, sticking pistons and reduced braking performance.

What Does the Brake Caliper Piston Scraper Ring Do?

The scraper ring forms a protective barrier around the brake caliper piston, helping prevent dirt, moisture and brake dust from entering the area between the piston and caliper body.

As the piston moves during braking, the scraper ring helps keep its exposed surface protected from contamination.

This is particularly important on high-performance braking systems such as those fitted to the Porsche 911 Turbo, where brake components are exposed to considerable heat and demanding operating conditions.

The scraper ring is separate from the internal hydraulic piston seal, which is responsible for retaining brake fluid pressure.

Why Does It Fail?

Brake caliper piston scraper rings are exposed to high temperatures, road debris and repeated piston movement.

Common causes of deterioration include:

Age-related hardening or cracking Heat damage from prolonged or heavy braking Contamination from road dirt and brake dust Moisture and corrosion around the piston Damage during brake pad replacement Incorrect installation or previous caliper repairs General wear after years of service

Once damaged, the scraper ring may no longer provide effective protection against contamination.

When Should It Be Replaced?

Replacement is recommended whenever the scraper ring becomes cracked, torn, hardened, loose or otherwise damaged.

Common signs that inspection or replacement may be necessary include:

Visible deterioration around the brake piston Corrosion developing on the piston surface Sticking or difficult-to-retract brake pistons Uneven brake pad wear Brake drag or overheating Contamination around the piston and caliper bore

The scraper rings should also be inspected during brake caliper refurbishment, piston replacement or a complete braking system restoration.

Related Brake Caliper Components

For a complete front brake caliper overhaul, the following components may also require replacement:

Front brake caliper piston sealing ring – 93035155501 Front brake caliper scraper ring – 93035154700 Front brake caliper seal repair kit – PO-930FBCKIT

The front caliper repair kit contains four scraper rings and four hydraulic piston sealing rings, sufficient to rebuild one front caliper.

Installation Notes

Inspect the brake caliper piston for corrosion, scoring or other damage before fitting the replacement scraper ring.

A new scraper ring will not correct problems caused by a damaged piston or defective hydraulic seal.

Ensure all components are correctly seated and installed using the appropriate Porsche brake caliper servicing procedure.

Brake caliper repairs should be carried out by a suitably qualified technician, with the braking system thoroughly checked before the vehicle is returned to service.

Porsche 911 Turbo 930 Brake Caliper Scraper Rings, Piston Seals & Repair Parts

The front brake calipers fitted to Porsche 911 Turbo 930 models rely on correctly functioning pistons, hydraulic seals and protective scraper rings to maintain reliable braking performance.

Over time, exposure to heat, moisture and road contamination can cause the original scraper rings to deteriorate, allowing dirt to reach the brake piston surface and potentially contribute to corrosion or restricted piston movement.

OE Match brake caliper piston scraper ring  provides a replacement solution for Porsche 911 Turbo 3.3L models manufactured between 1978 and 1989, front calipers with 38mm pistons.

Replacing damaged scraper rings during routine brake maintenance or caliper refurbishment helps protect internal components and supports long-term braking system reliability.



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93035154700
93035154700

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Brake caliper piston scraper rings (Boot), Rear. Porsche 911 Turbo 78-89 - 93035255400, 93035255302 - URO-007630, URO-013918
2
Brake caliper piston scraper rings (Boot), Rear. Porsche 911 Turbo 78-89
Special Order item
93035255400
Product Information
Product Information
Brake caliper piston scraper rings (Boot), Rear. Fits: rear 30mm piston

rear
Porsche 911 (930) Turbo 1978-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 42.

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93035255400
93035255400
93035255302

The product you are viewing cross references to these numbers
Brake caliper piston scraper rings (Boot), Rear. Porsche 911 Turbo 78-89 - 93035255400, 93035255302 - URO-007630, URO-013918
3
Brake caliper piston scraper rings (Boot), Rear. Porsche 911 Turbo 78-89
93035255400/1
Product Information
Product Information
Brake caliper piston scraper rings (Boot), Rear. Fits: rear 30mm piston

rear
Porsche 911 (930) Turbo 1978-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 42.

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93035255400
93035255400
93035255302

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Brake Caliper Piston Seal for Brembo Calipers - 105595552, 105595553, 105595554, 105595555, 105595556, 105595557, 105595558, 1055955, 105595560
1
Brake Caliper Piston Seal for Brembo Calipers
1055955
Product Information
Product Information
Replacement brake calliper piston seal for Brembo callipers.

Price is each seal

**Please check the piston size you need as some callipers take two different sizes.

Fits:
Various Models

Price is each seal

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1055955
105595552
105595553
105595554
105595555
105595556
105595557
105595558
1055955
105595560

The product you are viewing cross references to these numbers
Brake Caliper Piston Seal for Brembo Calipers - 95135291700, 95135291701, 99635191500, 96535291700, 95135191700, 99635191501, 9P1698671C, 95135191701, 92835191700
1
Brake Caliper Piston Seal for Brembo Calipers
204872
Product Information
Product Information
Replacement brake calliper piston seal for Brembo callipers

**Please check the piston size you need as some callipers take two different sizes.

Fits:
Various Models

Price is each seal

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

204872
95135291700
95135291701
99635191500
96535291700
95135191700
99635191501
9P1698671C
95135191701
92835191700

The product you are viewing cross references to these numbers
Brake caliper piston SIZE 30mm diameter. Porsche 930 - 93035255501
3
Brake caliper piston SIZE 30mm diameter. Porsche 930
Special Order item
93035255501
Product Information
Product Information
Replacement brake caliper piston.
SIZE 30mm diameter

Fits:
Porsche 930 Turbo 1978-89 REAR

Please check your caliper pistons size before ordering, this list below is just a guide

Click 'Zoom in' for large parts diagram.
Diagram ref no 41

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

93035255501
93035255501

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Brake caliper piston SIZE 30mm diameter. Porsche 930 Turbo - 93035255501
3
Brake caliper piston SIZE 30mm diameter. Porsche 930 Turbo
93035255501/1
Product Information
Product Information
Replacement Brake Caliper Piston, 30mm Diameter.
Restore safe and dependable braking performance with this OE Match Replacement Brake Caliper Piston, measuring 30mm diameter, manufactured as a direct replacement. Produced to OE-style specifications, this precision-machined caliper piston is designed to replace worn, corroded, or seized original pistons during brake caliper overhaul and restoration.

Fits:
  • Porsche 911 1978-1989 3.3L Turbo (930)

Diagram Ref No 41

The brake caliper piston converts hydraulic brake pressure into mechanical force, pushing the brake pads evenly against the brake disc to provide smooth, controlled braking. Over time, corrosion, contaminated brake fluid, damaged seals, or general wear can cause the piston to stick or seize, leading to reduced braking efficiency, uneven pad wear, and brake drag. This OE Match replacement restores correct caliper function and reliable braking performance, making it ideal for professional brake caliper refurbishment and classic Porsche restoration projects.  

What This Product Does:
  • Converts hydraulic brake pressure into braking force.
  • Applies even pressure to the brake pads.
  • Restores smooth brake caliper operation.
  • Helps maintain consistent braking performance.
  • Reduces uneven brake pad wear.
  • Provides OE-style fit and dimensional accuracy.
  • Replaces worn, corroded, or seized original pistons.

Symptoms Of Wear Or Failure:
  • Seized or sticking brake caliper.
  • Uneven brake pad wear.
  • Brake pulling to one side.
  • Reduced braking performance.
  • Brake drag after releasing the brake pedal.
  • Corrosion or pitting on the piston surface.
  • Brake fluid leaks caused by damaged piston surfaces.
  • Overheating brake discs or brake pads.
  • Difficulty retracting the piston during servicing.
  • Age-related deterioration found during brake caliper rebuilds.

Why Replacement Matters:

  • The brake caliper piston is a critical component of the hydraulic braking system and plays a vital role in maintaining safe, consistent stopping performance. A worn, corroded, or seized piston can reduce braking efficiency, increase brake component wear, and compromise vehicle safety.
  • Replacing a damaged piston restores smooth hydraulic movement, even brake pad contact, and dependable braking performance. Manufactured to OE-style specifications, this OE Match replacement provides the correct fit, reliable operation, and long-lasting durability, making it an essential component for professional brake caliper refurbishment and preserving your Porsche's braking system to factory standards.



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93035255501
93035255501

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Brake Caliper Piston SIZE 35mm diameter x 29mm height - 90135209910
2
Brake Caliper Piston SIZE 35mm diameter x 29mm height
90135209910/1
Product Information
Product Information
Replacement Brake Caliper Piston, 35mm Diameter x 29mm Height.
Restore safe and dependable braking performance with this OE Match Replacement Brake Caliper Piston, measuring 35mm diameter x 29mm height, manufactured as a direct replacement. Produced to OE-style specifications, this precision-engineered caliper piston is designed to replace worn, corroded, or damaged original pistons during brake caliper overhaul and restoration.

Fits:
  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 356C 1963-65  

The brake caliper piston converts hydraulic brake pressure into mechanical force, pressing the brake pads evenly against the brake disc to provide consistent stopping power. Over time, moisture, contaminated brake fluid, corrosion, or damaged seals can cause the piston to seize, stick, or wear, resulting in reduced braking efficiency and uneven brake pad wear. This OE Match replacement restores smooth caliper operation and reliable braking performance, making it ideal for professional brake rebuilds and classic Porsche restoration projects.  

What This Product Does:
  • Converts hydraulic brake pressure into braking force.
  • Applies even pressure to the brake pads.
  • Restores smooth brake caliper operation.
  • Helps maintain consistent braking performance.
  • Reduces uneven brake pad wear.
  • Provides OE-style fit and dimensional accuracy.
  • Replaces worn, corroded, or seized original pistons.

Symptoms Of Wear Or Failure:
  • Seized or sticking brake caliper.
  • Uneven brake pad wear.
  • Brake pulling to one side.
  • Reduced braking performance.
  • Brake drag after releasing the pedal.
  • Corrosion or pitting on the piston surface.
  • Brake fluid leaks caused by damaged piston surfaces.
  • Overheating brake discs or pads.
  • Difficulty retracting the piston during servicing.
  • Age-related deterioration discovered during caliper overhaul.

Why Replacement Matters:

  • The brake caliper piston is a vital component of the hydraulic braking system. A worn, corroded, or seized piston can reduce braking efficiency, cause uneven braking, increase brake component wear, and compromise vehicle safety.
  • Replacing a damaged piston restores smooth hydraulic operation, even brake pad contact, and dependable stopping performance. Manufactured to OE-style specifications, this OE Match replacement provides the correct dimensions, precise fit, and long-lasting durability, making it an essential component for professional brake caliper refurbishment and classic Porsche restoration.



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

90135209910
90135209910

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Brake caliper piston SIZE 38mm diameter - 91135299300
2
Brake caliper piston SIZE 38mm diameter
91135299300/1
Product Information
Product Information
Replacement brake caliper piston.
SIZE 38mm diameter

Please check your caliper pistons size before ordering, this list below is just a guide

Porsche 911 1976-83 REAR

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

91135299300
91135299300

The product you are viewing cross references to these numbers
Brake caliper piston SIZE 38mm diameter x 29mm height - 90135299300, 90135209911
2
Brake caliper piston SIZE 38mm diameter x 29mm height
90135299300/1
Product Information
Product Information
Replacement Brake Caliper Piston, 38mm Diameter x 29mm Height.
Restore safe and reliable braking performance with this OE Match Replacement Brake Caliper Piston, measuring 38mm diameter x 29mm height, manufactured as a direct replacement. Produced to OE-style specifications, this precision-engineered caliper piston is designed to replace worn, corroded, or damaged original pistons during brake caliper overhaul and restoration.

Fits:
  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC
  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50
  • Porsche 911 1975-1977 3.0L Turbo (930)
  • Porsche 911 1978-1989 3.3L Turbo (930)  

The brake caliper piston converts hydraulic brake pressure into mechanical force, pressing the brake pads evenly against the brake disc to slow and stop the vehicle. Over time, exposure to moisture, contaminated brake fluid, corrosion, or damaged piston seals can cause the piston to seize or operate unevenly, affecting braking performance and causing uneven pad wear. This OE Match replacement restores smooth caliper operation, making it ideal for professional brake rebuilds and classic Porsche restoration projects.  

What This Product Does:
  • Converts hydraulic pressure into braking force.
  • Pushes the brake pads evenly against the brake disc.
  • Restores smooth brake caliper operation.
  • Helps maintain consistent braking performance.
  • Reduces uneven brake pad wear.
  • Provides OE-style fit and dimensional accuracy.
  • Replaces worn, corroded, or seized original pistons.

Symptoms Of Wear Or Failure:
  • Seized or sticking brake caliper.
  • Uneven brake pad wear.
  • Brake pulling to one side.
  • Reduced braking performance.
  • Brake drag after releasing the pedal.
  • Corrosion or pitting on the piston surface.
  • Fluid leaks caused by damaged piston surfaces.
  • Overheating brake disc or pads.
  • Difficulty retracting the piston during servicing.
  • Age-related deterioration discovered during caliper overhaul.

Why Replacement Matters:

  • The brake caliper piston is a critical component in the hydraulic braking system. A corroded, worn, or seized piston can reduce braking efficiency, cause uneven braking, increase brake wear, and compromise vehicle safety.
  • Replacing a damaged piston restores smooth hydraulic operation, even brake pad contact, and dependable stopping performance. Manufactured to OE-style specifications, this OE Match replacement provides the correct dimensions, precise fit, and reliable durability, making it an essential component for professional brake caliper refurbishment and classic Porsche restoration.



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

90135299300
90135299300
90135209911

The product you are viewing cross references to these numbers
Brake Caliper Piston SIZE 42mm diameter x 30mm height - 91135242X00
2
Brake Caliper Piston SIZE 42mm diameter x 30mm height
91135242X00/1
Product Information
Product Information
Replacement brake caliper piston
SIZE 42mm diameter x 30mm height

Please check your caliper pistons size before ordering, this list below is just a guide

Porsche 911 1984-89 REAR

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

91135242X00
91135242X00

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Brake caliper piston SIZE 48mm diameter x 30mm height - 90135109710
2
Brake caliper piston SIZE 48mm diameter x 30mm height
90135109710/1
Product Information
Product Information
Replacement Brake Caliper Piston, 48mm Diameter x 30mm Height.
Restore safe, consistent braking performance with this OE Match Replacement Brake Caliper Piston, measuring 48mm diameter x 30mm height, manufactured as a direct replacement. Produced to OE-style specifications, this precision-machined caliper piston is designed to replace worn, corroded, or seized original pistons during brake caliper refurbishment and restoration.

Fits:
  • Porsche 911 1965-1968 2.0L / 912 SWB (F)
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 356C 1963-65  

The brake caliper piston converts hydraulic brake pressure into mechanical force, pushing the brake pads evenly against the brake disc to provide controlled stopping power. Over time, exposure to moisture, contaminated brake fluid, corrosion, or deteriorated seals can cause the piston to stick or seize, resulting in reduced braking efficiency, uneven pad wear, and brake drag. This OE Match replacement restores smooth caliper operation and dependable braking performance, making it ideal for professional brake rebuilds and classic Porsche restoration projects.  

What This Product Does:
  • Converts hydraulic brake pressure into braking force.
  • Applies even pressure to the brake pads.
  • Restores smooth brake caliper operation.
  • Helps maintain consistent braking performance.
  • Reduces uneven brake pad wear.
  • Provides OE-style fit and dimensional accuracy.
  • Replaces worn, corroded, or seized original pistons.

Symptoms Of Wear Or Failure:
  • Seized or sticking brake caliper.
  • Uneven brake pad wear.
  • Brake pulling to one side.
  • Reduced braking performance.
  • Brake drag after releasing the pedal.
  • Corrosion or pitting on the piston surface.
  • Brake fluid leaks caused by damaged piston surfaces.
  • Overheating brake discs or pads.
  • Difficulty retracting the piston during servicing.
  • Age-related deterioration discovered during caliper overhaul.

Why Replacement Matters:

  • The brake caliper piston is a critical component of the hydraulic braking system, directly affecting braking efficiency and vehicle safety. A corroded or seized piston can prevent even brake pad contact, increase brake wear, and reduce overall stopping performance.
  • Replacing a damaged piston restores smooth hydraulic movement, reliable braking force, and even pad wear. Manufactured to OE-style specifications, this OE Match replacement provides the correct dimensions, precise fit, and long-lasting durability, making it an essential component for professional brake caliper refurbishment and maintaining your Porsche's braking system to factory standards.



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

90135109710
90135109710

The product you are viewing cross references to these numbers
Brake caliper piston SIZE 48mm diameter x 30mm height - 91135142500
3
Brake caliper piston SIZE 48mm diameter x 30mm height
91135142500/1
Product Information
Product Information
Replacement brake caliper piston
SIZE 48mm diameter x 30mm height

Please check your caliper pistons size before ordering, this list below is just a guide

Porsche 911 1977-89 FRONT

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

91135142500
91135142500

The product you are viewing cross references to these numbers
Brake Caliper Piston SIZE 48mm diameter x 34mm height - 91135191800
4
Brake Caliper Piston SIZE 48mm diameter x 34mm height
91135191800/1
Product Information
Product Information
Replacement Brake Caliper Piston, 48mm Diameter x 34mm Height.
Restore safe, reliable braking performance with this OE Match Replacement Brake Caliper Piston, measuring 48mm diameter x 34mm height, manufactured as a direct replacement. Produced to OE-style specifications, this precision-machined caliper piston is designed to replace worn, corroded, or seized original pistons during brake caliper overhaul and restoration.

Fits:
  • Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
  • Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
  • Porsche 911 1978-1983 3.0L / SC
  • Porsche 911 1984-1986 3.2L
  • Porsche 911 1987-1989 3.2L G50  

The brake caliper piston converts hydraulic brake pressure into mechanical force, pressing the brake pads evenly against the brake disc to deliver consistent stopping power. Over time, exposure to moisture, contaminated brake fluid, corrosion, or deteriorated piston seals can cause the piston to seize or operate unevenly, leading to reduced braking efficiency, brake drag, and uneven brake pad wear. This OE Match replacement restores smooth hydraulic movement and dependable braking performance, making it ideal for professional brake caliper refurbishment and classic Porsche restoration projects.  

What This Product Does:
  • Converts hydraulic brake pressure into braking force.
  • Applies even pressure to the brake pads.
  • Restores smooth brake caliper operation.
  • Helps maintain consistent braking performance.
  • Reduces uneven brake pad wear.
  • Provides OE-style fit and dimensional accuracy.
  • Replaces worn, corroded, or seized original pistons.

Symptoms Of Wear Or Failure:
  • Seized or sticking brake caliper.
  • Uneven brake pad wear.
  • Brake pulling to one side.
  • Reduced braking performance.
  • Brake drag after releasing the pedal.
  • Corrosion or pitting on the piston surface.
  • Brake fluid leaks caused by damaged piston surfaces.
  • Overheating brake discs or pads.
  • Difficulty retracting the piston during servicing.
  • Age-related deterioration discovered during caliper overhaul.

Why Replacement Matters:

  • The brake caliper piston is a vital component of the hydraulic braking system and is essential for safe, consistent braking performance. A worn, corroded, or seized piston can reduce braking efficiency, increase brake component wear, and compromise vehicle safety.
  • Replacing a damaged piston restores smooth hydraulic operation, even brake pad contact, and reliable stopping performance. Manufactured to OE-style specifications, this OE Match replacement provides the correct dimensions, precise fit, and long-lasting durability, making it an essential component for professional brake caliper refurbishment and maintaining your Porsche's braking system to factory standards.



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

91135191800
91135191800

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 44 products)
1 2 3
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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