Caliper Seals |Pistons

Rear Brake Caliper Piston & Seal Kit 
1 kit per caliper - 2 required per car

High-quality rear brake caliper piston and seal kit designed for a range of classic Porsche transaxle and V8 models including the Porsche 924 turbo, 924S, 944 and 928 models

This complete rebuild kit is designed for rear brake calipers fitted with 36mm pistons and provides the essential components required to restore braking performance, hydraulic sealing, and smooth piston operation.

Fits:

• Porsche 924 Turbo 2.0L 1979-81
• Porsche 924 Turbo 2.0L 1982-84
• Porsche 924 Carrera GT 2.0L 1981
• Porsche 924 Carrera GTS 2.0L 1982
• Porsche 924S 2.5L 1986-87
• Porsche 924S 2.5L 1988
• Porsche 944 2.5L 8V 1982-87
• Porsche 944 2.7L 8V 1988-89
• Porsche 944S 2.5L 16V 1987-88
• Porsche 928 4.5L 1978-82
• Porsche 928S 4.7L 1981-83
• Porsche 928S2 4.7L 1984-86

Kit includes
1 x 36mm caliper piston
1 x 36mm piston dust cap
1 x 36mm piston seal
1 x retaining spring
1 x bleed nipple and cover

Manufactured to OEM specifications, these components ensure precise fitment, long-term durability, and reliable braking performance for classic Porsche models.

Key Features

• Rear brake caliper piston and seal kit 
• Designed for 36mm rear brake calipers
• OEM-quality materials for reliability and durability
• Restores hydraulic sealing and piston movement
• Ideal for restoration and brake servicing projects

Function and Purpose

This kit is essential for maintaining rear brake caliper performance.

It helps to:
• Restore smooth caliper piston operation
• Maintain hydraulic pressure and braking consistency
• Prevent brake fluid leaks
• Protect pistons from dirt and moisture ingress
• Ensure safe and reliable braking performance

Why Replace Brake Pistons & Seals?

Brake caliper components can deteriorate over time due to age, moisture, and heat exposure.

Common issues include:
• Corroded or sticking pistons
• Worn or leaking piston seals
• Cracked dust caps
• Reduced braking efficiency
• Uneven brake performance

Replacing worn pistons and seals restores safe braking operation and improves reliability.

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

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.

Rear Brake Caliper Seal Kit 
1 kit per caliper - 2 required per car

Premium rear brake caliper seal kit designed for Porsche 928 S4, 928 GTS, 928 GT, and Porsche 944 turbo models up to VIN 95KN1 00218. This comprehensive kit includes seals for the two piston sizes to suit the rear caliper configuration, ensuring correct fitment and reliable 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

The kit contains
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 nipple covers

Engineered to OEM standards, these components ensure proper hydraulic sealing, protect against dirt and moisture ingress, and support smooth piston movement for consistent braking performance. Ideal for maintenance, repair, or restoration of Porsche braking systems.

Key Features

• Designed for Porsche 928 & 944 turbo rear calipers
• Maintains hydraulic pressure and piston protection
• Prevents contamination and corrosion
• OEM-quality materials for durability and reliability

Function and Purpose

This seal kit is essential for maintaining rear brake caliper performance and safety.

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

Why Replace Rear Caliper Seals

Brake seals degrade over time due to heat, pressure, and exposure to the elements.

Common issues include:
• Brake fluid leaks
• Reduced braking efficiency
• Sticking or seized pistons
• Uneven brake pad wear
• Corrosion caused by moisture ingress

Replacing worn seals restores braking performance, safety, and reliability.