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- 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)
The OE MATCH Brake Master Cylinder BIG BORE is a hydraulic braking component designed to convert brake pedal force into hydraulic pressure for the vehicle’s braking system. Featuring a larger bore design, this master cylinder is engineered to provide increased fluid displacement, making it particularly suitable for vehicles fitted with upgraded brake calipers or performance braking systems that require greater hydraulic volume.
Fits:
- 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 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.
The master cylinder is designed to deliver precise brake pedal feel, consistent hydraulic pressure, and reliable braking performance. As the central component of the hydraulic braking system, it plays a critical role in ensuring safe, responsive, and predictable stopping power.
What This Product Does:
- Converts brake pedal input into hydraulic pressure
- Supplies brake fluid pressure to the braking system
- Provides increased fluid displacement through its larger bore design
- Supports performance and upgraded brake system applications
- Maintains consistent brake pedal feel and braking response
- Works with dual-circuit braking systems for enhanced safety
Symptoms Of Wear Or Failure:
- Soft or spongy brake pedal feel
- Brake pedal slowly sinking under pressure
- Reduced braking effectiveness
- Brake fluid leaks around the master cylinder
- Inconsistent brake pressure or pedal response
- Difficulty building hydraulic pressure
- Brake warning lights illuminating
- Internal seal wear causing pressure loss between circuits
Why Replacement Matters:
- Restores correct hydraulic pressure throughout the braking system
- Improves brake pedal feel and responsiveness
- Ensures consistent and predictable braking performance
- Prevents brake fluid leaks and pressure loss
- Supports safe operation of dual-circuit braking systems
- Maintains compatibility with performance brake upgrades
- Reduces the risk of braking system failure
- Helps preserve driver confidence and vehicle safety under all driving conditions
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91135501202
The product you are viewing cross references to these numbers
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
Fits:
Porsche 997 3.8L C2S
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99735591011
The product you are viewing cross references to these numbers
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
The product you are viewing cross references to these numbers
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Fits:
Porsche 987.1 Boxster 2005-08
Porsche 987.1 Boxster 2009-12
Porsche 987C.1 Cayman 2005-08
Porsche 987C.2 Cayman 2009-12
Porsche 997.1 C2 / C2S 2005-08
Porsche 997.2 C2/ C2S 2009-12
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99907361501
The product you are viewing cross references to these numbers