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Porsche // Panamera 970 MK2 (2014-2016) // Any
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10 Piston Front Brake Caliper Seal Kit
Sold per caliper – 2 required per car
Premium brake caliper seal kit designed specifically for front brake calipers with 10 pistons. This comprehensive kit includes 10 x 29mm piston dust covers and 10 x 27mm piston seals, providing everything required for a complete caliper rebuild.
Engineered for high-performance and multi-piston braking
systems, this kit ensures proper sealing, protection, and smooth piston
operation under demanding conditions. It is ideal for restoring braking
efficiency, preventing fluid leaks, and maintaining consistent brake pressure.
Fits:
- Porsche 958 Cayenne 2015-18
-
Cars with Front disc brake 20", Caliper painted yellow/PCCB
- Porsche 9YA Cayenne 2018>>
- Cars with Front disc brake 20", Caliper painted White (PSCB) (option code: 1ZI)
- Cars with Front disc brake 20", Caliper painted Green (PSBC) (option code: 1ZU)
- Cars with Front disc brake 21", Caliper painted Yellow (PCCB) (option code: 1ZV)
-
Cars with Front disc brake 21", Caliper painted Green (PCCB) (option code:
1ZW)
- Porsche 971 Panamera 2017-21
- Cars with Front disc brake 20", Caliper painted Yellow (PCCB) (option code: 1ZL)
-
Cars with Front disc brake 20", Caliper painted Acid Green (PCCB) (option
code: 1ZQ)
- Porsche 971.2 Panamera 2021>>
-
Cars with Front disc brake PCCB (option code: 1LQ) Cars with Front disc brake,
PCCB, high-gloss black (option code: 1LX)
- Porsche (9J1.1) Taycan 2020-24
-
Cars with Front disc brake 19", yellow/black caliper (option code: 1LQ /
1LX)
- Porsche (9J1.2) Taycan 2024>>
- Cars with Front disc brake 19", yellow/black caliper (option code: 1LQ / 1LX)
- Cars with Front disc brake 19", Neodyme caliper (option code: 1IA)
Manufactured from high-quality, heat-resistant materials,
this seal kit is suitable for performance vehicles, track use, and high-load
braking applications.
Please
verify piston diameter before ordering.
Kit Contents:
• 10 x 29mm piston dust covers
• 10 x 27mm piston seals
• 2 bleed nipple cover
Key Features
• 10 piston front brake caliper seal kit
• Part number: 227004
• Includes 10 x 29mm piston dust covers
• Includes 10 x 27mm piston seals
• Designed for multi-piston front brake calipers
• Ideal for high-performance and performance road use
• Prevents brake fluid leaks and contamination
• Durable, heat-resistant construction
• Suitable for rebuild, repair, or restoration
Function and Purpose
This kit is essential for maintaining the integrity and performance of multi-piston brake calipers.
It helps to:
• Seal hydraulic brake fluid within the caliper
• Protect pistons from dirt, debris, and moisture
• Maintain consistent braking pressure across all pistons
• Ensure smooth and balanced piston movement
• Support optimal braking performance and safety
Why Replace Caliper Seals in Multi-Piston Systems
High-performance braking systems operate under extreme heat and pressure, accelerating seal wear.
Common issues include:
• Brake fluid leakage
• Uneven piston movement
• Reduced braking efficiency
• Sticking or seized pistons
• Contamination leading to corrosion
Replacing seals restores braking precision, responsiveness, and safety.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95835131300
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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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1055955
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Brake Caliper Replacement Pistons for Brembo Calipers
Sold each
Restore the performance and reliability of your Porsche Brembo braking system with these OE Match Brake Caliper Replacement Pistons. Manufactured to original equipment specifications, these precision-engineered pistons are designed for rebuilding Brembo brake calipers fitted to a wide range of Porsche models.
Available in 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm and 44mm outer diameters, every piston has an overall height of 32mm and is manufactured to deliver the correct fit, smooth operation and dependable sealing performance when used with new piston seals and dust boots.
Important: Please check the piston diameter required for your specific caliper before ordering. Many Brembo calipers use two different piston diameters within the same caliper to optimise braking performance. The sizes listed refer to the outer diameter (OD) of the piston.
What Does a Brake Caliper Piston Do?
The brake caliper piston is one of the most important components inside the braking system. Hydraulic brake fluid pressure pushes the piston forward, forcing the brake pad firmly against the brake disc to generate the friction required to slow or stop the vehicle.
Its primary functions include:
- Converting hydraulic pressure into braking force.
- Applying even pressure across the brake pads.
- Ensuring smooth and consistent piston movement.
- Maintaining balanced braking performance.
- Supporting Porsche ABS and stability control systems.
- Delivering precise pedal feel and braking response.
Correctly functioning pistons are essential for maintaining the powerful, progressive braking performance expected from Porsche Brembo calipers.
Why Do Brake Caliper Pistons Fail?
Brake caliper pistons operate in harsh conditions and are continually exposed to heat, moisture and brake dust. Over time they can become damaged or worn.
Common causes include:
- Corrosion caused by moisture ingress.
- Torn or damaged dust boots.
- Contaminated brake fluid.
- Surface pitting.
- Heat generated during heavy braking.
- Seized pistons caused by corrosion.
- Damage during previous repairs.
- High mileage and normal wear.
A damaged piston can prevent the caliper from operating correctly, leading to reduced braking performance and uneven brake pad wear.
Symptoms of a Worn or Damaged Caliper Piston
Common symptoms include:
- Sticking or seized brake calipers.
- Uneven brake pad wear.
- Vehicle pulling during braking.
- Reduced braking performance.
- Overheating brakes. Brake drag.
- Fluid leaks around the piston seal.
- Difficulty retracting the piston during servicing.
Replacing damaged pistons during a caliper overhaul restores smooth operation and reliable braking performance.
When Should Brake Caliper Pistons Be Replaced?
Replacement is recommended whenever:
- Corrosion or pitting is visible.
- Pistons become seized or difficult to move.
- The caliper is being rebuilt.
- Dust boots have failed allowing contamination.
- Brake fluid leaks occur around the piston.
- Uneven pad wear is caused by sticking pistons.
- Restoring older Brembo brake calipers.
- During preventative maintenance on ageing braking systems.
For the best results, new pistons should always be installed with new piston seals and dust protection boots.
OE Match Quality You Can Trust
These OE Match Brake Caliper Replacement Pistons offer:
- Manufactured to original equipment specifications.
- Precision-machined finish.
- Excellent corrosion resistance.
- Smooth piston movement.
- Direct replacement fitment.
- Suitable for Brembo brake calipers.
- Available in 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm and 44mm diameters.
- Uniform piston height of 32mm.
- Ideal for professional caliper rebuilding.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1055955
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00004330511
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DOT 4
Having an extremely high boiling point and lower viscosity than required, it meets and greatly exceeds regulatory standards. Also suitable for vehicles with ABS.
Vapour Lock formation
This sort of habit leaves room for the Vapour Lock, the formation of vapour bubbles due to boiling of the brake fluid that replace the normal fluid and are compressed, thereby sending the brake pedal to its fill stoke (spongy pedal). The origin is incident in the porosity of the tubes that make up the braking circuit, which in time draw moisture into the fluid, drastically reducing the boiling point. The result is a reduced braking efficiency.
Brembo Premium Brake Fluid
Brembo Premium brake fluids have a higher boiling point that exceeds the standard, thus offering superior resistance to the Vapour Lock and ensuring braking efficiency even at low temperatures. With high anti-corrosion properties and resistance to oxidation, Brembo brake fluid also allows for long-term unaltered chemical/physical characteristics of the fluid in operating circuit; therefore, preserving its integrity.
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L040
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