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Brake Master Cylinder
By OE Match
- Porsche 993 (911) C2 1994-97
The primary hydraulic pressure generator for the braking system - translates your brake pedal input into brake fluid pressure that activates the brake calipers.
Fits:
Porsche 993 C2 1995 - 1998
Diagram ref no 9
When you press the brake pedal, the master cylinder generates hydraulic pressure that is distributed through the brake lines to all four wheels. This pressure forces the brake calipers to clamp the brake pads against the rotors, slowing the vehicle safely and effectively. A properly functioning master cylinder is essential for consistent brake pedal feel, stopping distance, and overall safety.
Function:
• Converts pedal force into hydraulic pressure to actuate the braking system
• Maintains proper fluid pressure to ensure balanced braking front to rear
• Works with the vehicle’s brake lines, reservoir, and calipers to deliver responsive braking performance on demand.
The master cylinder is a critical safety component of your braking system. Over time, seals and internal surfaces can wear or deteriorate, leading to:
• Spongy or inconsistent pedal feel
• Brake fluid leaks or loss of pressure
• Reduced braking performance or uneven stopping
• Potential safety hazards if left unaddressed.
Replacing a worn or failing unit helps restore proper hydraulic pressure, pedal feel, and brake system performance - keeping your Porsche responsive and safe.
Replace the brake master cylinder if you notice:
• Soft, sinking, or inconsistent brake pedal feel
• Visible brake fluid leaks around the master cylinder
• Air entering the brake lines or ineffective braking response
• During a brake system rebuild, fluid flushing, or seal failure diagnostics
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99335591000
The product you are viewing cross references to these numbers
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- 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
Brake Servo Cylinder Gasket
High-quality replacement brake servo cylinder gasket designed for Porsche 964 and 993 models, including Carrera 4, Turbo, and RS variants.
This gasket provides a secure seal between the brake servo
(booster) and cylinder assembly, ensuring proper vacuum operation and
consistent braking performance. It is a critical component in maintaining
braking system efficiency and safety.
Fits:
Diagram ref no 22
Manufactured to OEM specifications, this gasket offers precise fitment and reliable sealing performance—ideal for maintenance, repair, or restoration of high-performance Porsche braking systems.
Key Features
• Direct replacement brake servo cylinder gasket
• Suitable for Porsche 964 and 993 Carrera 4, Turbo, and RS models
• Ensures proper vacuum sealing within braking system
• OEM-style fit and performance
• Durable material for long-term reliability
• Ideal for servicing, repair, or restoration
Function and Purpose
This gasket seals the connection within the brake servo system.
It helps to:
• Maintain correct vacuum pressure for brake assistance
• Prevent air leaks in the braking system
• Ensure consistent brake pedal feel
• Support safe and reliable braking performance
Why Replace Your Brake Servo Gasket
Brake system seals can degrade over time due to heat and age.
Common issues include:
• Vacuum leaks reducing brake assistance
• Hardened or cracked gasket material
• Inconsistent braking performance
• Reduced system efficiency
Replacing the gasket restores proper braking function and safety.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96435585100
The product you are viewing cross references to these numbers
OEMatch Brake Master Cylinder — Fit, Function, Confidence
OEMatch supplies a broad selection of parts for Porsche models, with a large catalogue of part numbers and extensive OE cross-references to support restorations and repairs. These replacement master cylinders are intended to restore reliable hydraulic control and a consistent pedal feel across road and track use.
Available Types
- Replacement units for classic Porsche restoration
- Replacement units for modern Porsche road models
- Units suited to road and motorsport preparation
Understanding OEMatch Brake Master Cylinder
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original brake master cylinder. OE (Original Equipment) refers to parts matching original specifications for the brake master cylinder and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM brake master cylinder engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
The brake master cylinder converts pedal pressure into hydraulic force that operates the brake calipers. It maintains even brake force distribution, supports ABS and traction control systems where fitted, and sustains a firm, predictable pedal feel when functioning correctly.
Benefits Include
- Restores safe and consistent braking performance and pedal feel
- Prevents fluid leaks and loss of hydraulic pressure
- Maintains correct brake balance across all wheels
- Constructed to resist corrosion and withstand thermal cycling
Why Brake Master Cylinder Wear and Fail
- Worn internal seals leading to pressure loss or external leaks
- Corrosion from moisture-contaminated brake fluid
- Scored or pitted cylinder bores that reduce seal integrity
- Air ingress or age-related degradation of rubber components
The Importance of Replacing with OEMatch Brake Master Cylinder
Timely replacement restores full hydraulic pressure and consistent braking response, helping to preserve control and safety for Porsche models. A serviceable master cylinder reduces the risk of spongy pedals, fluid loss and uneven brake performance while supporting systems such as ABS that depend on stable hydraulic input.
Advantages
- Manufactured to original-spec dimensions and tolerances for fit and function
- Suitable for both classic restoration and modern Porsche applications
- Supported by OEMatch’s catalogueuing and cross-references for easier part identification
Support & Advice
These items affect safety-critical systems. Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new fasteners where specified.
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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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Standard Brake Hoses
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Caliper and Brake Lines
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Brake Calipers
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Brake Caliper Upgrades
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Handbrake Shoes
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Handbrake Cables
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Brake Disc Cover Plates
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ABS | Speed Sensors
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Caliper Seals |Pistons
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Brake Servo | Booster
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Brake Fluid Reservoir
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Brake Fluid
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DesignTek Brake Kits
