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Caliper Seals |Pistons
High Temperature Performance Brake Caliper Seal Kit
Upgrade Kit 28mm
1 kit per caliper - 2 required per car
Restore and upgrade your Porsche braking system with this
High Temperature Performance Brake Caliper Seal, specifically
designed for Porsche 993 turbo and Porsche GT2 brake calipers.
Fits:
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Engineered as part of the upgraded Performance Range, this
kit has been developed for demanding driving conditions where brake
temperatures exceed the capabilities of standard OEM seal materials. Whether
your Porsche is used for fast road driving, spirited weekend use, track days,
or motorsport-inspired applications, this kit delivers enhanced durability and
sealing performance under extreme braking loads.
Kit Contents
• 4 x 28mm Pistons
• 4 x 28mm Performance Silicone Dust Seals
• 4 x 28mm Performance Piston Seals
• 2 x Bleed Nipple Dust Covers
Unlike standard caliper rebuild kits, the Performance Range incorporates upgraded high-temperature materials throughout the critical sealing components, helping maintain reliability and braking consistency during repeated heavy braking cycles.
Performance Range Key Advantages
High-Temperature Silicone Dust Seals
The Performance Range replaces conventional OEM-style EPDM dust boots with premium high-temperature silicone dust seals.
Benefits include:
• Superior resistance to elevated brake temperatures
• Increased flexibility under thermal stress
• Improved longevity during track use
• Reduced risk of heat-related seal degradation
• Enhanced protection against dirt, dust and moisture ingress
Enhanced Thermal-Resistant Piston Seals
The piston seals are manufactured using an upgraded EPDM compound specifically developed to withstand higher operating temperatures encountered during performance driving.
Advantages include:
• Improved heat resistance
• Enhanced sealing performance
• Greater long-term reliability
• Reduced seal deterioration under repeated heavy braking
• Consistent caliper operation under demanding conditions
Why Choose the Performance Range?
When brake temperatures rise during aggressive road driving or track use, standard seal materials can become compromised, leading to premature wear and reduced sealing performance.
The upgraded materials used throughout the Performance Range help maintain brake caliper efficiency and durability when exposed to:
• Repeated heavy braking cycles
• High operating temperatures
• Track-day conditions
• Fast road driving
• Motorsport-inspired vehicle builds
This makes the kit an ideal preventative maintenance upgrade for Porsche owners seeking improved brake system reliability.
Ideal Applications
This Performance Brake Caliper Seal Kit is particularly suitable for:
• Porsche 993 Turbo road and track cars
• Porsche GT2 performance builds
• Fast road driving
• Track-day use
• Motorsport-inspired projects
• High-performance braking systems
• Vehicles exposed to repeated high-temperature braking cycles
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
993810672
The product you are viewing cross references to these numbers
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
Shop Securely
12 Month Warranty
Worldwide Delivery
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 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97
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 28mm Performance Dust Seals
2 x 28mm 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.
993807662
The product you are viewing cross references to these numbers
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) TURBO S 1994-97
Shop Securely
12 Month Warranty
Worldwide Delivery
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-
The product you are viewing cross references to these numbers
Shop Securely
12 Month Warranty
Worldwide Delivery
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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Brake Pads & Disc Package
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Brake Disc Standard
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Brake Pads Standard
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Brembo Standard brakes
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Brembo Racing brakes
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TEXTAR Brakes
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PAGID Racing Brakes
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Zimmermann Brakes
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Giro Slotted Brake Disc
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SHW Performance Brakes
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Brake Pad Wear Sensors
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Brake Pad Anti-vibration shims
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Caliper Bolts / Disc Screws
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Pin Kit and Guide Plates
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Performance Brake Hoses
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Brake Calipers
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Brake Caliper Upgrades
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DesignTek Brake Kits
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