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- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Rear Brake Caliper Piston and Seal Kit
1 kit per caliper - 2 required per car
Comprehensive rear brake caliper piston and seal kit designed for Porsche 928 S4, 928 GTS, 928 GT, and Porsche 944 turbo models up to VIN 95KN1 00218. This complete rebuild kit includes both pistons and sealing components, making it ideal for restoring full braking performance.
Fits:
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Please
verify piston diameter before ordering.
Kit contains
2 x 30mm caliper pistons
2 x 28mm caliper pistons
2 x 30mm piston dust covers
2 x 28mm piston dust covers
2 x 30mm piston seals
2 x 28mm piston seals
2 x bleed nipples and covers.
This ensures full compatibility with the rear caliper configuration and enables
a complete overhaul.
Manufactured to OEM standards, this kit restores hydraulic integrity, ensures smooth piston operation, and protects against contamination—delivering reliable and consistent braking performance. Ideal for restoration, maintenance, or professional brake system rebuilds.
Key Features
• Rear brake caliper piston and seal kit
• Designed for Porsche 928 & 944 Turbo rear calipers
• Complete rebuild solution for performance restoration
• OEM-quality materials for durability and reliability
Function and Purpose
This complete kit is essential for restoring rear brake caliper performance.
It helps to:
• Replace worn or corroded pistons
• Restore hydraulic sealing within the caliper
• Maintain consistent braking pressure
• Ensure smooth piston movement and operation
• Protect internal components from dirt and moisture
Why Replace Pistons & Seals Together
Over time, both pistons and seals wear due to heat, pressure, and corrosion.
Common issues include:
• Brake fluid leaks
• Seized or sticking pistons
• Uneven braking performance
• Corrosion on piston surfaces
• Reduced braking efficiency
Replacing both pistons and seals ensures a complete and long-lasting repair.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
951908228
The product you are viewing cross references to these numbers
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
Front Brake Caliper Overhaul Kit - for Both Sides
Restore your Porsche's front braking system to factory
performance with this comprehensive OE Match Front Brake Caliper Overhaul
Kit, designed specifically for the Porsche 986 Boxster S and Porsche
996 fitted with Brembo front brake calipers. This complete rebuild kit
services both front brake calipers and contains everything required to
replace the critical wear components during a professional caliper
refurbishment.
Fits:
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
Parts Diagram ref No's 8, 10, 11, 12, 13, 14, 15.
Manufactured to original equipment specifications and featuring premium Brembo piston seals, this overhaul kit restores braking efficiency, piston movement and weather protection while helping extend the service life of your original Brembo calipers.
Kit Contents
This complete front brake caliper overhaul kit services both
front calipers and contains:
- 4 x Ventilation Valve Caps
- 4 x Ventilation Valves (Bleed Nipples)
- 4 x Pan-Head Screws
- 2 x Repair Kits (Bolt, Spring & Retaining Clip)
- 4 x Protection Caps – 40mm
- 4 x Protection Caps – 36mm
- 4 x Brembo Piston Seals – 36mm
- 4 x Brembo Piston Seals – 40mm
- 1 x Left Caliper Connecting Line
- 1 x Right Caliper Connecting Line
Everything required to carry out a comprehensive overhaul of both front Brembo brake calipers.
What Does a Brake Caliper Overhaul Kit Do?
Over time, the seals, dust boots and service components inside the brake calipers deteriorate due to heat, age and repeated braking cycles. A caliper overhaul kit restores the internal sealing and protection of the caliper, allowing the pistons to operate smoothly and maintain consistent hydraulic pressure.
The overhaul restores:
- Correct piston sealing.
- Smooth piston movement.
- Protection against water and dirt ingress.
- Proper brake pad operation.
- Reliable hydraulic performance.
- Consistent braking performance.
- Long-term caliper reliability.
A professionally rebuilt caliper can often provide many more years of dependable service.
Why Do Brake Calipers Require Overhauling?
Brake calipers operate in one of the harshest environments
on the vehicle. Common causes of wear include:
- Heat generated during braking.
- Ageing and hardening of rubber piston seals.
- Dust boot deterioration.
- Moisture entering the caliper.
- Corrosion around the pistons.
- Contaminated brake fluid.
- Sticking pistons.
- Seized bleed nipples.
- General wear after high mileage.
Ignoring worn seals can eventually result in sticking brakes, uneven pad wear or brake fluid leaks.
When Should a Brake Caliper Be Rebuilt?
A caliper overhaul is recommended whenever:
- Brake pistons become stiff or seize.
- Dust boots split or perish.
- Brake fluid leaks develop.
- Uneven brake pad wear is evident.
- The calipers are removed for restoration.
- During a complete brake system refurbishment.
- The vehicle is being prepared for fast road or track use.
- As preventative maintenance on ageing vehicles.
Rebuilding both front calipers at the same time ensures balanced braking performance across the axle.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
CALIPERKIT05
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
Rear Brake Caliper Overhaul Kit for Both Sides
Restore your Porsche's rear braking performance with this
comprehensive OE Match Rear Brake Caliper Overhaul Kit, designed
specifically for the Porsche 986 Boxster and Porsche 996 Carrera 2 /
Carrera 4 fitted with Brembo rear brake calipers. This complete rebuild kit
services both rear brake calipers, providing every essential component
required to professionally refurbish your original calipers.
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
Parts Diagram ref No's 8, 10, 11, 12, 13, 14, 15.
Manufactured to original equipment specifications and featuring premium Brembo piston seals, this overhaul kit restores smooth piston movement, reliable hydraulic sealing and long-term protection against dirt, moisture and corrosion, helping extend the life of your original Brembo braking system.
Kit Contents
This complete rear brake caliper overhaul kit services both
rear calipers and includes:
- 4 x Ventilation Valve Caps
- 4 x Ventilation Valves (Bleed Nipples)
- 4 x Pan-Head Screws
- 2 x Repair Kits (Bolt, Spring & Retaining Clip)
- 4 x Protection Caps – 28mm
- 4 x Protection Caps – 30mm
- 4 x Brembo Piston Seals – 28mm
- 4 x Brembo Piston Seals – 30mm
- 1 x Left Caliper Connecting Line
- 1 x Right Caliper Connecting Line
Everything required to carry out a complete overhaul of both rear Brembo brake calipers.
What Does a Rear Brake Caliper Overhaul Kit Do?
A brake caliper overhaul kit replaces the critical internal sealing and service components that naturally deteriorate over time. Fresh piston seals restore hydraulic sealing, while new dust protection caps keep dirt, moisture and road debris away from the pistons, ensuring smooth and reliable operation.
The overhaul helps to:
- Restore smooth piston movement.
- Maintain correct hydraulic pressure.
- Prevent brake fluid leaks.
- Protect pistons from corrosion.
- Ensure even rear brake pad wear.
- Improve braking consistency.
- Extend the service life of the original calipers.
A professionally rebuilt caliper restores much of the original braking performance while retaining the factory Brembo calipers.
Why Do Rear Brake Calipers Need Rebuilding?
Rear brake calipers are constantly exposed to heat, moisture
and road contamination. Over time, service components begin to deteriorate.
Common causes include:
- Heat generated during braking.
- Ageing and hardening of piston seals.
- Perished or split dust caps.
- Moisture entering the caliper.
- Corrosion around the pistons.
- Contaminated brake fluid.
- Seized or sticking pistons.
- Worn bleed valves.
- General wear after years of service.
Ignoring worn seals can eventually lead to sticking calipers, uneven pad wear, brake fluid leaks and reduced braking efficiency.
When Should the Rear Brake Calipers Be Overhauled?
A complete rebuild is recommended whenever:
- Rear brake pistons become stiff or seize.
- Dust caps split or deteriorate.
- Brake fluid leaks develop.
- Rear brake pads wear unevenly.
- The calipers are removed for restoration.
- During a complete brake system refurbishment.
- Preparing the vehicle for fast road or track use.
- As preventative maintenance on higher mileage vehicles.
Rebuilding both rear calipers together ensures balanced braking performance across the rear axle.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
CALIPERKIT07
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
Porsche 996 C4S 3.6L 09/01-2005
Porsche 996 TURBO 2000-05
parts including: cap, ventilation valve, pan-head screw, bolt, expanding spring, securing clip, protection caps, connecting line (left and right).
This Kit Fits BOTH SIDES.
4 VENTILATION VALVE CAP
4 VENTILATION VALVE
4 PAN-HEAD SCREW
2 REPAIR KIT (BOLT, SPRING, CLIP)
4 REPAIR KIT (PROTECTION CAPS) 44mm
4 REPAIR KIT (PROTECTION CAPS) 36mm
4 BREMBO PISTON SEAL 36mm
4 BREMBO PISTON SEAL 44mm
1 CONNECTING LINE - LEFT
1 CONNECTING LINE - RIGHT
Parts Diagram ref No's 8, 10, 11, 12, 13, 14, 15.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
CALIPERKIT08
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
Rear Brake Caliper Overhaul Kit for Both Sides
Restore the braking performance of your Porsche with this
comprehensive OE Match Rear Brake Caliper Overhaul Kit, developed
specifically for the Porsche 996 Turbo and 996 Carrera 4S fitted
with factory Brembo rear brake calipers. This complete rebuild kit services both
rear brake calipers, providing every essential component required to
professionally refurbish your original Brembo braking system.
Fits:
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
Parts Diagram ref No's 8, 10, 11, 12, 13, 14, 15
Manufactured to original equipment specifications and featuring premium Brembo piston seals, this overhaul kit restores smooth piston movement, dependable hydraulic sealing and long-term protection against dirt, moisture and corrosion. It is the ideal solution when rebuilding ageing calipers during brake servicing, restoration or performance maintenance.
Kit Contents
This complete rear brake caliper overhaul kit services both
rear calipers and includes:
4 x
Ventilation Valve Caps
4 x
Ventilation Valves (Bleed Nipples)
4 x
Pan-Head Screws
2 x
Repair Kits (Bolt, Spring & Retaining Clip)
4 x
Protection Caps – 28mm
4 x
Protection Caps – 30mm
4 x
Brembo Piston Seals – 28mm
4 x
Brembo Piston Seals – 30mm
1 x
Left Caliper Connecting Line
1 x
Right Caliper Connecting Line
Everything required to carry out a complete overhaul of both rear Brembo brake calipers.
What Does a Rear Brake Caliper Overhaul Kit Do?
A brake caliper overhaul kit replaces the critical wear components inside the caliper that naturally deteriorate over time. New piston seals restore hydraulic sealing, while fresh dust protection caps keep moisture, dirt and brake dust away from the pistons to ensure reliable operation.
The overhaul helps to:
- Restore smooth piston movement.
- Maintain correct hydraulic pressure.
- Prevent brake fluid leaks.
- Protect pistons against corrosion.
- Promote even rear brake pad wear.
- Improve braking consistency and pedal feel.
- Extend the service life of the original Brembo calipers.
Rebuilding the original calipers allows you to retain the factory Brembo braking system while restoring its original performance.
Why Do Rear Brake Calipers Need Rebuilding?
Rear brake calipers are continually exposed to heat,
moisture, road contamination and repeated braking cycles. Over time, internal
components naturally deteriorate. Common causes include:
- Heat generated during braking.
- Ageing and hardening of piston seals.
- Split or deteriorated dust caps.
- Moisture entering the caliper.
- Corrosion around the pistons.
- Contaminated brake fluid.
- Seized or sticking pistons.
- Worn bleed valves.
- High mileage and long-term use.
Ignoring worn seals can eventually result in sticking calipers, uneven brake pad wear, brake fluid leaks and reduced braking performance.
When Should the Rear Brake Calipers Be Overhauled?
A complete rebuild is recommended whenever:
Rear brake pistons become stiff or seize. Dust caps split or perish. Brake fluid leaks develop. Rear brake pads wear unevenly. The calipers are removed for refurbishment. During a complete brake system restoration. Preparing the vehicle for fast road or track use. As preventative maintenance on higher mileage vehicles.Rebuilding both rear calipers together ensures balanced braking performance across the rear axle.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
CALIPERKIT09
The product you are viewing cross references to these numbers
This kit is comprised of the following items: