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- 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
SIZE 48mm diameter x 30mm height
Porsche OE numbers 90135109710
Please check your caliper pistons size before ordering, this list below is just a guide
Porsche 356C Front
Porsche 912 1964-68 Front
Porsche 911 1964-68 Front
Porsche 911T Front
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90135109710
The product you are viewing cross references to these numbers
Price is for each Piston
*** Please check the piston diameter you need as some calipers take two different sizes. Sizes shown are the piston outer diameter (OD), The height of the pistons is 32mm
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1055955
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
Rear Brake Caliper Seal Kit
1 kit per caliper - 2 required per car
High-quality rear brake caliper seal kit designed
specifically for Porsche 993 turbo and Carrera 4S models. This kit provides all
essential components required to restore rear brake caliper performance and
ensure reliable braking operation.
Fits:
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
The kit includes
4 x 28mm piston dust caps
4 x 28mm piston
seals
2 x bleed nipple covers
Manufactured to OEM standards, these components ensure effective hydraulic sealing, protect against contamination, and support smooth piston movement. Ideal for brake system maintenance, repair, or full caliper rebuilds.
Key Features
• Rear brake caliper seal kit
• Designed for Porsche 993 turbo and Carrera 4S rear calipers
• Maintains hydraulic pressure and sealing integrity
• Prevents dirt, moisture, and contamination ingress
• OEM-quality materials for durability and performance
• Ideal for rebuild, servicing, or restoration
Function and Purpose
This seal kit is essential for maintaining rear brake caliper efficiency and safety.
It helps to:
• Seal brake fluid within the caliper
• Protect pistons from debris and moisture
• Maintain consistent hydraulic pressure
• Ensure smooth piston operation
• Prevent corrosion and premature wear
Why Replace Rear Caliper Seals
Brake components are subject to extreme heat and environmental exposure.
Common issues include:
• Brake fluid leaks
• Reduced braking performance
• Sticking or seized pistons
• Uneven brake wear
• Corrosion caused by moisture ingress
Replacing worn seals restores braking reliability, performance, and safety.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
993013228
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
Rear Brake Caliper Piston and Seal Kit
1 kit per caliper - 2 required per car
Complete rear brake caliper piston and seal kit designed specifically for Porsche 993 turbo and Carrera 4S models. This all-in-one rebuild kit includes pistons and sealing components required to restore full braking performance and reliability.
Fits:
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
Kit contains
4 x 28mm caliper pistons
4 x 28mm piston dust caps
4 x 28mm piston seals
2 x bleed nipples and covers
Manufactured to OEM standards, this kit ensures proper hydraulic sealing, smooth piston operation, and long-term durability. Ideal for maintenance, restoration, or professional brake system rebuilds.
Key Features
• Rear brake caliper piston and seal kit
• Designed for Porsche 993 turbo & Carrera 4S rear calipers
• Complete rebuild solution with pistons and seals
• Maintains hydraulic pressure and performance
• OEM-quality materials for durability and reliability
Function and Purpose
This complete kit is essential for restoring rear brake caliper function.
It helps to:
• Replace worn or corroded pistons
• Restore hydraulic sealing within the caliper
• Maintain consistent braking pressure
• Ensure smooth and even piston movement
• Protect internal components from contamination
Why Replace Pistons & Seals Together
Brake components degrade over time 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 reliable repair.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
993910228
The product you are viewing cross references to these numbers