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Brake Master Cylinder

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DISPLAYING 1 to 16 (of 33 products)
1 2 3
PCG35506100/1KIT1
Product Information
Product Information
ATE brake master cylinder and connecting line kit 
For cars without a brake servo and a brake master cylinder without brake light switch

Fits:
For Left Hand Drive cars (LHD)
Porsche 911 2.0ltr-3.0ltr - 1964 to 1977
Porsche 912 - 1967 to 1970
Porsche 914 / 914-6 - 1970 to 1976

Kit contains 
1 x ATE Brake master cylinder
2 x Connecting line (feed and return)

Diagram ref no 11, 12 and 16

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PCG35506100
PCG35506100
90135506100
PCG35506300
90135506300
91435506300
PCG35506310
90135501200

The product you are viewing cross references to these numbers
PCG35506100/1KIT5
Product Information
Product Information
Big bore Brake master cylinder, 23mm high performance version -  Comes with stop light switch fitted to the unit.
For cars without a brake servo and a brake master cylinder WITH brake light switch

Fits:
For Left Hand Drive cars (LHD)
Porsche 911 2.0ltr-3.0ltr - 1964 to 1977
Porsche 911 turbo 3.0ltr - 1975 to 1977
Porsche 912 - 1967 to 1970
Porsche 914 / 914-6 - 1970 to 1976

Kit contains 
1 x Big bore brake master cylinder with brake switch fitted
2 x Connecting line (feed and return)


Diagram ref no 11, 12 and 22



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PCG35506100
PCG35506100
90135506100
PCG35506300
90135506300
91435506300
PCG35506310
91135501202
90161311501

The product you are viewing cross references to these numbers
PCG35506100/1KIT4
Product Information
Product Information
Brake master cylinder and connecting line kit 
For cars without a brake servo and a brake master cylinder WITH brake light switch

Fits:
For Left Hand Drive cars (LHD)
Porsche 911 2.0ltr-3.0ltr - 1964 to 1977
Porsche 911 turbo 3.0ltr - 1975 to 1977
Porsche 912 - 1967 to 1970
Porsche 914 / 914-6 - 1970 to 1976

Kit contains 
1 x Brake master cylinder
2 x Connecting line (feed and return)

1 x Brake light switch

Diagram ref no 11, 12 and 22



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PCG35506100
PCG35506100
90135506100
PCG35506300
90135506300
91435506300
PCG35506310
91135501202
90161311501

The product you are viewing cross references to these numbers
PCG35506100/1KIT
Product Information
Product Information
Connecting line kit for brake master cylinder.
For cars without brake servo

Fits:
For Left Hand Drive cars (LHD)
Porsche 911 2.0ltr-3.0ltr - 1964 to 1977
Porsche 911 turbo 3.0ltr -  1975 to 1977
Porsche 912 - 1967 to 1970
Porsche 914 / 914-6 - 1970 to 1976

Kit contains both connecting lines from master cylinder to brake fluid reservoir.

Diagram ref no 11 and 12

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PCG35506100
PCG35506100
90135506100
PCG35506300
90135506300
91435506300
PCG35506310

The product you are viewing cross references to these numbers
PCG35506100/1KIT2
Product Information
Product Information
FTE brake master cylinder and connecting line kit 
For cars without a brake servo and a brake master cylinder without brake light switch

Fits:
For Left Hand Drive cars (LHD)
Porsche 911 2.0ltr-3.0ltr - 1964 to 1977
Porsche 912 - 1967 to 1970
Porsche 914 / 914-6 - 1970 to 1976

Kit contains 
1 x FTE Brake master cylinder
2 x Connecting line (feed and return)

Diagram ref no 11, 12 and 16

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PCG35506100
PCG35506100
90135506100
PCG35506300
90135506300
91435506300
PCG35506310
90135501200

The product you are viewing cross references to these numbers
PCG35506100/1KIT3
Product Information
Product Information
FTE brake master cylinder and connecting line kit 
For cars without a brake servo and a brake master cylinder WITH brake light switch

Fits:
For Left Hand Drive cars (LHD)
Porsche 911 2.0ltr-3.0ltr - 1964 to 1977
Porsche 911 turbo 3.0ltr - 1975 to 1977
Porsche 912 - 1967 to 1970
Porsche 914 / 914-6 - 1970 to 1976

Kit contains 
1 x FTE Brake master cylinder
2 x Connecting line (feed and return)

Diagram ref no 11, 12 and 22

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PCG35506100
PCG35506100
90135506100
PCG35506300
90135506300
91435506300
PCG35506310
91135501202

The product you are viewing cross references to these numbers
95002500
Product Information
Product Information
Brake fluid DOT 4 20Ltr Textar


textar

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
Special Offer
L040
Product Information
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.
brembo


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.



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

L040
00004320209
00004320366
00004321082
00004330552

The product you are viewing cross references to these numbers
95006
Product Information
Product Information

Brake fluid DOT 4 LV (Low Viscosity) Textar.

textar

Textar DOT 4 LV (Low Viscosity) is especially recommended for use in hydraulic brake and clutch systems of vehicles fitted with ESP, ABS and ASR with a high boiling point and outstanding performance at very low temperatures.

DOT 4 LV (Low Viscosity)
Dry Boiling Point ≥ 260° C 
Wet Boiling Point ≥ 165° C 
Viscosity at -40C < 750 mm2 /s

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

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95006
00004330552
00004320366
00004321082
00004320209

The product you are viewing cross references to these numbers
95002
Product Information
Product Information
Brake fluid DOT 4 

textar

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

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95002
00004430501
00004321082
00004330552
00004320366
00004320209

The product you are viewing cross references to these numbers
Special Order item
91461349100
Product Information
Product Information
Brake light switch cap

porsche

Fits:
Porsche 356 B / C 1960-65
Porsche 911 1965-67
Porsche 911 1970-73
Porsche 914 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref 19

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91461349100
91461349100
64461349100
69561354300
90161349100
90161354300
91561349100

The product you are viewing cross references to these numbers
Special Offer
91461349100/1
Product Information
Product Information
Brake light switch cap. Porsche 356 / 911 / 914

oematch

Fits:
Porsche 356 B / C 1960-65
Porsche 911 1965-67
Porsche 911 1970-73
Porsche 914 1970-76

Click 'Zoom in' for large parts diagram.
Diagram ref 19

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91461349100
91461349100
64461349100
69561354300
90161349100
90161354300
91561349100

The product you are viewing cross references to these numbers
Special Offer
91135501202/1
Product Information
Product Information
Brake master cylinder BIG BORE, 23mm high performance version.
Comes with stop light switch fitted to the unit.

For cars with stop light switch

Fits:
Porsche 911 1968-76
Porsche 930 Turbo 3.0L 1975/77,
Porsche 912 1968-69, 1976,
Porsche 914-6 1970-71

This is a high performance upgrade to the stock Porsche 911 Master Cylinder for non-power brake applications. The increased 23mm bore (vs. 19mm) should be used on cars that are fitted with 'larger than stock' brakes to increase pedal pressure and feel. Unlike other kits on the market, which require modifications to the lines and the push rod, our Master Cylinder is a direct fit.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91135501202
91135501202
91135501202A

The product you are viewing cross references to these numbers
Special Order item
91135501313
Product Information
Product Information
Brake master cylinder fluid bottle with lid.

porsche

Fits:
Porsche 911 1968
Porsche 911 1974-86
Porsche 911 (930) 1975-77
Porsche 914 1970-76 (914-1.8/1.8V ; 914-2.0)

Click 'Zoom in' for large parts diagram.
Diagram ref no 1.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91135501313
95835511300
1661200500
91135501313
90135501300
90135501301
91135501303
91135501310
90135501302
91435501500

The product you are viewing cross references to these numbers
Special Offer
91135501313/1
Product Information
Product Information
Brake master cylinder fluid bottle with lid.

oematch

Fits:
Porsche 911 1968
Porsche 911 1974-86
Porsche 911 (930) 1975-77
Porsche 914 1970-76 (914-1.8/1.8V ; 914-2.0)

Click 'Zoom in' for large parts diagram.
Diagram ref no 1.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91135501313
95835511300
95835511300
91135501313
90135501300
90135501301
91135501303
91135501310
90135501302
91435501500

The product you are viewing cross references to these numbers
Special Order item
90135593600
Product Information
Product Information
Brake Master Cylinder Grommet Washer.
Sold Each.
x2 Required Per Car.

Fits:
Porsche 911 1965>>1977
Porsche 911 (930) Turbo 1975>>1977
Porsche 914 1970>>1976

Diagram Ref No 18

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90135593600
90135593600

The product you are viewing cross references to these numbers
DISPLAYING 1 to 16 (of 33 products)
1 2 3
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About Brake Master Cylinder

Porsche Brake Master Cylinders | Design911 Precision Replacement Parts for Hydraulic Performance & Safety

The brake master cylinder is the heart of your Porsche’s braking system, converting pedal pressure into hydraulic force that engages the brake calipers. It ensures consistent, balanced braking across all wheels — a key factor in maintaining Porsche’s renowned control and stopping performance. When the master cylinder begins to fail, it can cause pressure loss, spongy pedals, or brake fade, making timely replacement essential for safety and precision.

At Design911, we stock a complete range of brake master cylinders, expertly engineered for exact fitment, consistent pressure delivery, and long-term durability. Each unit is crafted from high-quality materials to withstand intense hydraulic pressures and thermal cycling. Whether for road use, motorsport preparation, or classic restoration, our replacement master cylinders restore the precision and performance your Porsche was built to deliver.

What Does a Brake Master Cylinder Do?

The master cylinder plays a critical role in the hydraulic braking system, converting the mechanical pressure from your foot into fluid pressure distributed to each caliper.

Core Functions:
• Converts pedal movement into hydraulic pressure.
• Ensures even brake force distribution across all wheels.
• Maintains consistent pedal feel and braking response.
• Supports ABS and traction control systems.
• Provides safe, reliable braking performance in all conditions.

Without a properly functioning master cylinder, your Porsche’s braking system cannot maintain hydraulic balance or stopping efficiency.

Why Do Brake Master Cylinders Fail or Degrade?

Brake master cylinders endure constant hydraulic pressure and exposure to brake fluid — conditions that can lead to internal wear, leaks, or contamination over time.

Common Causes of Failure Include:
• Worn internal seals leading to pressure loss or leaks.
• Corrosion caused by moisture-contaminated brake fluid.
• Scored or pitted cylinder bores reducing seal integrity.
• Air ingress into the hydraulic system.
• Age-related degradation of rubber components.

When a master cylinder fails, it can cause reduced braking efficiency, fluid leaks, or an unresponsive pedal — all of which compromise safety and control.

Why Replace or Upgrade Your Porsche Brake Master Cylinder?

Replacing a worn or leaking master cylinder restores full hydraulic pressure and ensures reliable braking response. Design911’s precision-engineered master cylinders deliver performance and durability that meet or exceed Porsche standards.

Key Benefits:
• Restores safe and consistent braking performance.
• Prevents fluid leaks and loss of hydraulic pressure.
• Maintains proper brake balance across all wheels.
• Constructed from corrosion-resistant materials for longevity.
• Direct-fit replacements for easy installation.
• Suitable for classic and modern Porsche models.

Design911’s Porsche brake master cylinders offer exceptional reliability and performance — ensuring your Porsche stops with the same confidence and precision as it accelerates.

Highlights

• Premium Porsche brake master cylinders for performance and restoration.
• Precision-machined for superior hydraulic control.
• Resistant to corrosion, heat, and fluid breakdown.
• Ensures firm pedal feel and consistent braking response.
• Compatible with both road and track applications.
• Designed for easy installation and long service life.

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