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- Porsche 964 (911) C2 1989-93
Brake Master Cylinder
Restore the braking performance and safety of your Porsche
with this OE Match Brake Master Cylinder. Manufactured to
original equipment specifications, this premium-quality replacement master
cylinder delivers precise hydraulic pressure, consistent brake pedal feel and
dependable braking performance for everyday driving and spirited road use.
Fits:
- Porsche 964 (911) C2 1989-93
Diagram ref no 9
The brake master cylinder is the heart of the hydraulic braking system. Every time you press the brake pedal, it converts mechanical force into hydraulic pressure, distributing brake fluid to each brake caliper. A worn or failing master cylinder can reduce braking efficiency, increase stopping distances and compromise vehicle safety, making timely replacement essential.
Manufactured using precision-machined internal components and high-quality seals, this OE Match brake master cylinder is engineered for long service life, excellent reliability and direct replacement fitment.
What Does the Brake Master Cylinder Do?
The brake master cylinder generates and distributes hydraulic pressure throughout the braking system.
Its primary functions include:
- Converting brake pedal movement into hydraulic pressure.
- Delivering brake fluid evenly to all four brake calipers.
- Maintaining consistent brake pedal feel.
- Providing balanced braking performance.
- Supporting the operation of the ABS braking system.
- Ensuring safe and predictable stopping performance.
Without a correctly functioning master cylinder, the braking system cannot operate effectively.
Why Does the Brake Master Cylinder Fail?
Over time, the internal components are subjected to constant
hydraulic pressure and brake fluid exposure. Common causes of failure include:
- Wear of the internal piston seals.
- Contaminated or degraded brake fluid.
- Corrosion inside the cylinder bore.
- Moisture absorption in the brake fluid.
- High mileage and age-related wear.
- Damage caused by neglected brake fluid changes.
Regular brake fluid replacement helps prolong the life of the master cylinder and the entire braking system.
Symptoms of a Failing Brake Master Cylinder
Typical warning signs include:
- Soft or spongy brake pedal.
- Brake pedal slowly sinking under constant pressure.
- Reduced braking performance.
- Internal hydraulic pressure loss.
- Brake fluid leaks around the master cylinder.
- Inconsistent pedal feel.
- Increased stopping distances.
- Brake warning light illumination (in some cases).
If any of these symptoms are present, the master cylinder should be inspected and replaced immediately if found to be faulty.
When Should the Brake Master Cylinder Be Replaced?
Replacement is recommended when:
- Internal seals begin to fail.
- Hydraulic pressure cannot be maintained.
- Brake fluid leakage is detected.
- The cylinder bore becomes corroded.
- Carrying out a complete brake system restoration.
- Replacing ageing hydraulic braking components.
- Brake performance deteriorates despite correctly functioning calipers and hoses.
Replacing the master cylinder restores braking confidence and helps maintain the original performance of your Porsche.
Please note if the fitting instructions are not followed this will damage the unit.
For Installation Instructions please CLICK HERE
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96435501503
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 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits into the Brake master cylinder
Fits:
Porsche 911 1974-86
Porsche 924 1976-80
Porsche 928 1978-95
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
113945515G
The product you are viewing cross references to these numbers
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 928 S2 / S4 / GT / GTS 4.7L 1986-96
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92735501124
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)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits:
Porsche 911 / 911S / Carrera 3.0 1977>>
Porsche 930 Turbo 1977>>
Porsche 924 1976-85
Porsche 924S 1986-88
Porsche 928 1978-95
Porsche 944 1982-90
Porsche 968 1992-95
Click 'zoom in' for large parts diagram.
Diagram ref no 22.
Related reference numbers
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95535592100
The product you are viewing cross references to these numbers