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99335591000/2
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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
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Product Information
Brake master cylinder.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
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99335591000
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Vehicle Group
Vehicle Group
- Porsche 993 (911) C2 1994-97
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251611243
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Fits:
Porsche 911 1977-89
Porsche 911 (930) Turbo 1975-89
Porsche 924 1976-85
Porsche 924 S 1986-88
Porsche 928 1978-85
Porsche 944 1982-90
Porsche 968 1992-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 23
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251611243
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Product Information
Brake Master Cylinder Seal. Fits:
Porsche 911 1977-89
Porsche 911 (930) Turbo 1975-89
Porsche 924 1976-85
Porsche 924 S 1986-88
Porsche 928 1978-85
Porsche 944 1982-90
Porsche 968 1992-95
Click 'Zoom in' for large parts diagram.
Diagram ref no 23
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L040
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L040
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Product Information
Brake discs, calipers, pads and brake master cylinders are the four cardinal points of each brake system; however, they are likely to be useless without the core of the entire system, the brake fluid. This component is so neglected as to be generally controlled in a summary fashion, with topping instead of a more appropriate replacement, at the change frequency recommended by the manufacturer.
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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95002
Product Information
Brake fluid is one of the most important fluids in a car as without it, stopping the vehicle safely would be impossible. The Brake fluid transmits the force exerted by the driver on the brake pedal onto the wheel brake.
To ensure perfect operation of the brakes, the brake fluid must be changed regularly during inspection or maintenance and tested with the correct brake fluid tester.
Brake fluid should be changed every two years.
The higher the DOT class, the higher the boiling temperature and wet boiling point. Higher DOT classes tend to allow longer maintenance intervals. The DOT standards are based on the American FMVSS-116 standard of the Department of Transportation (DOT).
Boiling Point and Viscosity
Dry Boiling Point - describes the property of the sealed new brake fluid. In this state, the brake fluid is almost anhydrous (substance containing no water). The dry boiling point is usually between 240 and 280°C.
Wet Boiling Point - determines the property of the brake fluid at the end of its life cycle, at a water content of 3.5% the fluid should be replaced. This defined wet boiling point must not be undercut.
Viscosity - describes the flow rate of the brake fluid. The lower the viscosity, the faster the brake fluid flows through the brake system, and the faster the brake signals are transmitted.
Important Notes
• Brake fluid is poisonous and a hazardous waste.
• Be careful when changing. The fluid weakens paints and plastics.
• It must not come into contact with eyes or skin. Always rinse spilled liquid with water.
• Do not pour the liquid into drinking water or mix with used oil.
• The colour of the brake fluid reveals nothing about its quality.
• Brake fluid should be stored in its original packaging and in a dry, cool and well-ventilated place.
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95002
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Product Information
Brake fluid DOT 4 Brake fluid is one of the most important fluids in a car as without it, stopping the vehicle safely would be impossible. The Brake fluid transmits the force exerted by the driver on the brake pedal onto the wheel brake.
To ensure perfect operation of the brakes, the brake fluid must be changed regularly during inspection or maintenance and tested with the correct brake fluid tester.
Brake fluid should be changed every two years.
The higher the DOT class, the higher the boiling temperature and wet boiling point. Higher DOT classes tend to allow longer maintenance intervals. The DOT standards are based on the American FMVSS-116 standard of the Department of Transportation (DOT).
Boiling Point and Viscosity
Dry Boiling Point - describes the property of the sealed new brake fluid. In this state, the brake fluid is almost anhydrous (substance containing no water). The dry boiling point is usually between 240 and 280°C.
Wet Boiling Point - determines the property of the brake fluid at the end of its life cycle, at a water content of 3.5% the fluid should be replaced. This defined wet boiling point must not be undercut.
Viscosity - describes the flow rate of the brake fluid. The lower the viscosity, the faster the brake fluid flows through the brake system, and the faster the brake signals are transmitted.
Important Notes
• Brake fluid is poisonous and a hazardous waste.
• Be careful when changing. The fluid weakens paints and plastics.
• It must not come into contact with eyes or skin. Always rinse spilled liquid with water.
• Do not pour the liquid into drinking water or mix with used oil.
• The colour of the brake fluid reveals nothing about its quality.
• Brake fluid should be stored in its original packaging and in a dry, cool and well-ventilated place.
Find out about Textar product verification here
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