Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Brake Master Cylinder

Fits:
Porsche 911 1965-77
Porsche 911 (930) Turbo 1975-77
Porsche 914 1970-76
To be used on 19,05MM Brake Master Cylinder with brake light switch.
Part number 91135501201 and 91135501202
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90135593001
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
This pipe fits into the top of the master cylinder and allows a rubber hose to connect from the reservoir down to the master cylinder.
Fits:
Porsche 911 / 912 1965 - 1967
Porsche 911 1968 - 1977 *RHD cars only
Porsche 930 Turbo 1975 - 1977 *RHD cars only
Fits to number 11 on diagram.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90135564400
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1975-1977 3.0L Turbo (930)
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
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91135501202
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
For cars with stop light switch
Does not come with new switch. Has to be transferred over or bought separately. Part number 90161311500
Fits:
Porsche 911 1968-76
Porsche 930 Turbo 3.0L 1975/77
Porsche 912 1968-69, 1976
Porsche 914-6 1970-71
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91135501202
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
For cars without stop light switch
Bore size: 19.05mm
Fits:
Porsche 911 T/E/S 2.2L / 2.4L / 2.7L 1968-73
Porsche 911 2.7L 1974-77 Cars without brake servo
Porsche 914 (914-6 type)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90135501200
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 914 (1970-1976)
For cars without stop light switch
Bore size: 19.05mm
Fits:
Porsche 911 T/E/S 2.2L / 2.4L / 2.7L 1969-75
Porsche 914 (914-6 type)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90135501200
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 914 (1970-1976)
Fits:
Porsche 911 SC / Carrera 3.0L / 3.2L 1977-89
Porsche 930 Turbo with servo 3.0L 1975-1977
Note: Switches not included.
Diameter of the bore: ø 20.64mm
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91135501112
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
Fits:
Porsche 911 SC / Carrera 3.0L / 3.2L 1977-89
Porsche 930 Turbo with servo 3.0L 1975-1977
Diameter of the bore: ø 20.64mm
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91135501112
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
Fits:
Porsche 911 SC / Carrera 3.0L / 3.2L 1977-89
Porsche 930 Turbo with servo 3.0L 1975-1977
Note: Switches not included.
Diameter of the bore: ø 20.64mm
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91135501112
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)

Fits:
Porsche 911 SC / Carrera 3.0L / 3.2L 1977-89
Porsche 930 Turbo with servo 3.0L 1975-1977
Note: Switches not included.
Diameter of the bore: ø 20.64mm
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91135501112
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
A steel push rod that transmits force from the brake pedal to the master cylinder piston. This component ensures proper brake pedal feel, correct stroke length and consistent hydraulic operation across the system.
Fits:
Porsche 911 2.0L 1968 -1969
Porsche 9111970 -1977
Porsche 914 1.7L / 1.8L / 2.0L 1970 - 1976
Diagram ref no 44
Built to exact dimensions for classic Porsche 911, 912 and 914 models, this critical component ensures correct stroke and reliable braking performance.
Over time, the brake master cylinder push rod can wear, bend slightly or lose its proper length due to pedal geometry changes, overload, or age. A compromised rod may lead to incorrect master cylinder travel, spongy brake pedal feel, or inconsistent braking performance.
Replacing this rod restores the intended geometry and ensures the master cylinder receives proper input - maintaining safety and brake system reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90142305704
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 914 (1970-1976)
2 Pole / Prong.
On master cylinder.

Fits:
for LHD cars
Porsche 911 1968-76
Porsche 930 Turbo 3.0L 1975/77
Porsche 912 1968-69, 1976
Porsche 914-6 1970-71
Click 'Zoom in' for large parts diagram.
Diagram ref no 44
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90161311501
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
2 Pole / Prong.
On master cylinder.

Fits:
for LHD cars
Porsche 911 1968-76
Porsche 930 Turbo 3.0L 1975/77
Porsche 912 1968-69, 1976
Porsche 914-6 1970-71
Click 'Zoom in' for large parts diagram.
Diagram ref no 44
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90161311501
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
Molub-Alloy Paste White T – High Performance Assembly & Anti-Fretting Paste
Molub-Alloy Paste White T is a premium high-performance assembly paste designed to provide exceptional protection against fretting corrosion, stick-slip, wear, and seizure in demanding automotive, industrial, and workshop applications.
This white assembly paste applies cleanly and appears almost colourless when spread as a thin layer, making it ideal for precision assembly work where cleanliness and protection are equally important.
Formulated for universal assembly and thin-film lubrication applications, Molub-Alloy Paste White T helps simplify component assembly and future disassembly while protecting contact surfaces against corrosion, vibration-related wear, and moisture ingress.
Its advanced formulation provides excellent resistance to both hot and cold water while delivering long-lasting corrosion protection under harsh operating conditions.
Particularly effective in applications exposed to vibration and frictional movement, the paste helps prevent fretting corrosion and reduces stick-slip behaviour, making it ideal for hydraulic cylinders, open lubrication points, threaded assemblies, sliding surfaces, and mechanical components subject to oscillating movement.
The product also helps eliminate squeaking noises and improves smooth operation in moving assemblies exposed to high loads and thermal stress.
Suitable for temperatures ranging from -30°C to +250°C, Molub-Alloy Paste White T delivers reliable lubrication and anti-corrosion performance across a wide range of workshop, automotive, and engineering environments.
Key Features
• High-performance white assembly paste
• Prevents fretting corrosion and surface wear
• Clean application with almost colourless thin-film appearance
• Helps simplify assembly and future disassembly
• Excellent anti-seize and separating properties
• Resistant to hot and cold water
• Reduces stick-slip and frictional vibration
• Helps eliminate squeaking noises
• Provides long-lasting corrosion protection
• Suitable for hydraulic cylinders and moving assemblies
• Wide operating temperature range from -30°C to +250°C
• Suitable for automotive, engineering, and industrial applications
Applications
Molub-Alloy Paste White T is ideal for:
• Assembly lubrication
• Anti-fretting protection
• Threaded fasteners and fittings
• Hydraulic cylinders
• Sliding and contact surfaces
• Open lubrication points
• Components exposed to vibration
• Mechanical assemblies requiring anti-seize protection
• Automotive workshop applications
• Industrial machinery and engineering assemblies
Why Use Molub-Alloy Paste White T?
Mechanical components exposed to vibration, friction, heat, and moisture can suffer from fretting corrosion, seizure, stick-slip, and accelerated wear.
Molub-Alloy Paste White T helps protect components by:
• Reducing friction between contact surfaces
• Preventing corrosion and seizure
• Improving assembly and removal
• Minimising vibration-induced wear
• Protecting against moisture and contamination
This makes it ideal for long-term component protection and reliable assembly work.
Temperature Performance
Designed for demanding operating conditions, Molub-Alloy Paste White T remains effective across a wide temperature range:
• Operating temperature: -30°C to +250°C
• Suitable for hot and cold operating environments
• Maintains lubrication and protection under thermal load
Clean & Professional Assembly Solution
Unlike darker anti-seize compounds, this white assembly paste offers a cleaner, more professional appearance during application and servicing.
Benefits include:
• Cleaner working environment
• Reduced visible residue
• Easier inspection during assembly
• Professional workshop finish
For cars without brake servo
Fits:
For Left Hand Drive Cars (LHD)
Porsche 911 2.0-3.0 08/67-12/77
Porsche 911 turbo 1975-77
Porsche 912 1.6 08/67-02/70
Porsche 914 1.7-2.0 01/69-02/76
Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG35506100
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
For cars without brake servo
Fits:
For Left Hand Drive cars (LHD)
Porsche 911 2.0-3.0 08/67-12/77
Porsche 911 turbo 3.0 1975-77
Porsche 912 1.6 08/67-02/70
Porsche 914 1.7-2.0 01/69-02/76
Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PCG35506100
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 914 (1970-1976)
-
Brake master cylinder for cars without brake booster 911 1974-77 604-00
-
Brake master cylinder for cars with brake booster 911 1977 ONWARDS 604-10
-
Pedals for Left-Hand Drive Cars 911 1974-77 702-00
-
Pedals for Right-Hand Drive Cars 911 1974-77 702-05
-
Pedals for Left-hand Drive Cars 911 1974-77 SPM 702-15
-
Pedals for Right-hand Drive Cars 911 1974-77 SPM 702-20
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.