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Brake master cylinder 23mm bore. Porsche 924 1981>> - 477611017A
477611017A/2
Vehicle Group
- Porsche 924 2.0L 1980-85
Information
Brake Master Cylinder 23mm bore
The FTE 23 mm brake master cylinder is an OEM-quality replacement designed for the Porsche 924 braking system. Manufactured as a direct replacement for Porsche part number 477611017A, it restores the hydraulic pressure required for safe, responsive, and consistent braking performance.
Fits:
Porsche 924 2.0L 1981>>
Brake master cylinder converts brake pedal input into hydraulic pressure, supplying brake fluid evenly throughout the braking system to provide safe, predictable, and consistent stopping performance.
Key Features & Benefits
• Genuine FTE OEM-quality hydraulic component
• Direct replacement for Porsche 477611017A
• 23 mm bore diameter
• Precision-machined internal components
• Reliable hydraulic pressure and pedal feel
• Durable seals for long service life
• Direct-fit installation with OEM-quality performance
Why Replacing the Brake Master Cylinder Matters
The brake master cylinder is one of the most important safety components on your Porsche. Over time, internal seals can wear and the cylinder bore may deteriorate, leading to reduced hydraulic pressure and compromised braking performance. Replacing a worn master cylinder restores firm pedal feel, reliable brake response, and overall braking safety.
When to Replace the Brake Master Cylinder
• Soft, spongy, or sinking brake pedal
• Brake fluid leaking from the master cylinder
• Reduced or inconsistent braking performance
• Internal seal failure causing loss of hydraulic pressure
• During a complete brake system restoration
• If corrosion or excessive wear is found during inspection
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477611017A
The product you are viewing cross references to these numbers
The FTE 23 mm brake master cylinder is an OEM-quality replacement designed for the Porsche 924 braking system. Manufactured as a direct replacement for Porsche part number 477611017A, it restores the hydraulic pressure required for safe, responsive, and consistent braking performance.
Fits:
Porsche 924 2.0L 1981>>
Brake master cylinder converts brake pedal input into hydraulic pressure, supplying brake fluid evenly throughout the braking system to provide safe, predictable, and consistent stopping performance.
Key Features & Benefits
• Genuine FTE OEM-quality hydraulic component
• Direct replacement for Porsche 477611017A
• 23 mm bore diameter
• Precision-machined internal components
• Reliable hydraulic pressure and pedal feel
• Durable seals for long service life
• Direct-fit installation with OEM-quality performance
Why Replacing the Brake Master Cylinder Matters
The brake master cylinder is one of the most important safety components on your Porsche. Over time, internal seals can wear and the cylinder bore may deteriorate, leading to reduced hydraulic pressure and compromised braking performance. Replacing a worn master cylinder restores firm pedal feel, reliable brake response, and overall braking safety.
When to Replace the Brake Master Cylinder
• Soft, spongy, or sinking brake pedal
• Brake fluid leaking from the master cylinder
• Reduced or inconsistent braking performance
• Internal seal failure causing loss of hydraulic pressure
• During a complete brake system restoration
• If corrosion or excessive wear is found during inspection
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477611017A
477611017A
The product you are viewing cross references to these numbers
Price: £545.00
In stock
Related products
Vehicle Group
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 Turbo 2.5L 8V 1985-88
Information
Brake master cylinder.
This Brake Master Cylinder is a Genuine Porsche Original Equipment (OE) hydraulic braking component, manufactured to Porsche’s exact factory specifications. It is the original master cylinder used in selected Porsche 924 and 944 models equipped with the ATE braking system.
Fits:
Porsche 924 GT 1980 - 1985
Porsche 924S 1986 - 1988 RHD Cars
Porsche 944 1982 - 1985 Cars with ATE brand cylinder
Porsche 944 / 944 Turbo 1985 - 1986 RHD Cars
Diagram ref no 1
The master cylinder generates and regulates hydraulic pressure when the brake pedal is applied, distributing brake fluid to the front and rear circuits. It ensures consistent brake response, predictable pedal feel, and reliable stopping performance under all driving conditions.
A worn or failing master cylinder can cause loss of hydraulic pressure, poor pedal feel, or brake fluid leakage - all of which compromise safety. Replacing it with a Genuine Porsche OE unit restores factory braking performance, system integrity, and long-term reliability while preserving vehicle originality.
When to replace:
• Brake pedal feels soft, spongy, or inconsistent
• Brake fluid leaks at the master cylinder
• Internal seal wear causing pressure loss
• Uneven or reduced braking performance
• During full brake system refurbishment or restoration
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94435501101
The product you are viewing cross references to these numbers
This Brake Master Cylinder is a Genuine Porsche Original Equipment (OE) hydraulic braking component, manufactured to Porsche’s exact factory specifications. It is the original master cylinder used in selected Porsche 924 and 944 models equipped with the ATE braking system.
Fits:
Porsche 924 GT 1980 - 1985
Porsche 924S 1986 - 1988 RHD Cars
Porsche 944 1982 - 1985 Cars with ATE brand cylinder
Porsche 944 / 944 Turbo 1985 - 1986 RHD Cars
Diagram ref no 1
The master cylinder generates and regulates hydraulic pressure when the brake pedal is applied, distributing brake fluid to the front and rear circuits. It ensures consistent brake response, predictable pedal feel, and reliable stopping performance under all driving conditions.
A worn or failing master cylinder can cause loss of hydraulic pressure, poor pedal feel, or brake fluid leakage - all of which compromise safety. Replacing it with a Genuine Porsche OE unit restores factory braking performance, system integrity, and long-term reliability while preserving vehicle originality.
When to replace:
• Brake pedal feels soft, spongy, or inconsistent
• Brake fluid leaks at the master cylinder
• Internal seal wear causing pressure loss
• Uneven or reduced braking performance
• During full brake system refurbishment or restoration
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94435501101
94435501101
The product you are viewing cross references to these numbers
Price: £925.09
Orderable
Vehicle Group
- 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
Information
Rubber Seal.
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
Related, superseded, cross reference or alternative numbers for comparison.
95535592100
The product you are viewing cross references to these numbers
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
Related, superseded, cross reference or alternative numbers for comparison.
95535592100
91135592100
95535592100
The product you are viewing cross references to these numbers
Price: £4.87
In stock
Vehicle Group
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
Information
Brake Master Cylinder
Fits:
Porsche 924S 1986-88 LHD Cars
Porsche 944 1982-85 Cars with GIRLING brand cylinders
Porsche 944 1985-86 LHD Cars without ABS
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94435501100
The product you are viewing cross references to these numbers
Fits:
Porsche 924S 1986-88 LHD Cars
Porsche 944 1982-85 Cars with GIRLING brand cylinders
Porsche 944 1985-86 LHD Cars without ABS
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94435501100
94435501100
The product you are viewing cross references to these numbers
Price: £925.09
Orderable