Clutch Master Cylinder
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99642310711
Product Information
Fits:
Porsche 986 Boxster 1997-04
Porsche 996 C2, C4, GT2, GT3, Turbo 1998-05
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Diagram ref no 8
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99642310711
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Clutch Master Cylinder Pipe. LHD carsFits:
Porsche 986 Boxster 1997-04
Porsche 996 C2, C4, GT2, GT3, Turbo 1998-05
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Diagram ref no 8
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99642310711
99642310711
99642310710
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Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Price: €178.44 inc. VAT
Orderable - 14 to 28 Days
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12 Month Warranty
Worldwide Delivery
99642310810
Product Information
Fits:
Porsche 986 Boxster 1997-04
Porsche 996 C2, C4, GT2, GT3, Turbo 1998-05
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
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99642310810
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Product Information
Clutch Master Cylinder Pipe. RHD carsFits:
Porsche 986 Boxster 1997-04
Porsche 996 C2, C4, GT2, GT3, Turbo 1998-05
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Diagram ref no 8
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99642310810
99642310810
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Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Price: €79.00 inc. VAT
Orderable - 14 to 28 Days
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12 Month Warranty
Worldwide Delivery
99742313700
Product Information
Fits:
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Porsche 987C.1 Cayman 2006-08
Porsche 987C.2 Cayman 2009-12
Porsche 996 Carrera 1998-05
Porsche 996 GT3 1999-05
Porsche 997.1 Carrera 2005-08
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Diagram ref no 3
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99742313700
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Product Information
Clutch master cylinder supply pipe. LHD cars. Fits:
Porsche 986 Boxster 1997-04
Porsche 987.1 Boxster 2005-08
Porsche 987.2 Boxster 2009-12
Porsche 987C.1 Cayman 2006-08
Porsche 987C.2 Cayman 2009-12
Porsche 996 Carrera 1998-05
Porsche 996 GT3 1999-05
Porsche 997.1 Carrera 2005-08
Click 'Zoom in' for large parts diagram.
Diagram ref no 3
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99742313700
99742313700
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Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- 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 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- 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
Price: €66.50 inc. VAT
Orderable - 14 to 28 Days
Shop Securely
12 Month Warranty
Worldwide Delivery
99642317106
Product Information
Fits:
Porsche 986 Boxster 1997-04
Porsche 996 C2, C4, GT2, GT3 1998-05
A clutch that is engaged/disengaged via hydraulic fluid instead of a cable uses a Clutch Master and Clutch Slave Cylinder. When depressing the clutch pedal a lever is squeezed, forcing hydraulic fluid through hydraulic lines to a "slave cylinder" which houses a piston. The piston forces a push rod to engage or disengage the clutch. A clutch master cylinder that contains the hydraulic fluid sits on a support har near the clutch lever. When either the Master or Slave Cylinder fail the clutch is unable to be disengaged.
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99642317106
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Product Information
Clutch Master CylinderFits:
Porsche 986 Boxster 1997-04
Porsche 996 C2, C4, GT2, GT3 1998-05
A clutch that is engaged/disengaged via hydraulic fluid instead of a cable uses a Clutch Master and Clutch Slave Cylinder. When depressing the clutch pedal a lever is squeezed, forcing hydraulic fluid through hydraulic lines to a "slave cylinder" which houses a piston. The piston forces a push rod to engage or disengage the clutch. A clutch master cylinder that contains the hydraulic fluid sits on a support har near the clutch lever. When either the Master or Slave Cylinder fail the clutch is unable to be disengaged.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99642317106
99642317106
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Price: €142.01 inc. VAT
Orderable - 14 to 28 Days
Shop Securely
12 Month Warranty
Worldwide Delivery
99642317106/1
Product Information
Brand:
This product comes with 2 YEARS Warranty
Fits:
Porsche 986 Boxster 1997-04
Porsche 996 C2, C4, GT2, GT3 1998-05
A clutch that is engaged/disengaged via hydraulic fluid instead of a cable uses a Clutch Master and Clutch Slave Cylinder. When depressing the clutch pedal a lever is squeezed, forcing hydraulic fluid through hydraulic lines to a "slave cylinder" which houses a piston. The piston forces a push rod to engage or disengage the clutch. A clutch master cylinder that contains the hydraulic fluid sits on a support har near the clutch lever. When either the Master or Slave Cylinder fail the clutch is unable to be disengaged.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99642317106
The product you are viewing cross references to these numbers
Product Information
Clutch Master CylinderBrand:
This product comes with 2 YEARS Warranty
Fits:
Porsche 986 Boxster 1997-04
Porsche 996 C2, C4, GT2, GT3 1998-05
A clutch that is engaged/disengaged via hydraulic fluid instead of a cable uses a Clutch Master and Clutch Slave Cylinder. When depressing the clutch pedal a lever is squeezed, forcing hydraulic fluid through hydraulic lines to a "slave cylinder" which houses a piston. The piston forces a push rod to engage or disengage the clutch. A clutch master cylinder that contains the hydraulic fluid sits on a support har near the clutch lever. When either the Master or Slave Cylinder fail the clutch is unable to be disengaged.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99642317106
99642317106
6284998801
99642317103
99642317104
99642317105
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
€87.00 inc. VAT
Now €78.30 inc. VAT
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12 Month Warranty
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90037802901
Product Information
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90037802901
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Product Information
Hexagon head bolt M6 x 40.
Fits:
Porsche 986 Boxster - 1997 to 2004
Porsche 996 - 1998 to 2005
Porsche 996 turbo / GT3 - 2000 to 2005
Porsche 997 GT3 - 2007 to 2012
Related reference numbers
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90037802901
90037802901
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Vehicle Group
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
Price: €5.77 inc. VAT
Orderable - 14 to 28 Days
Shop Securely
12 Month Warranty
Worldwide Delivery
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About Clutch Master Cylinder
Porsche Clutch Master Cylinders | Hydraulic Precision for Smooth Gear Engagement
The clutch master cylinder is a key component of your Porsche’s hydraulic clutch system. It converts pedal pressure into hydraulic force, sending fluid to the slave cylinder to engage or disengage the clutch. A properly functioning clutch master cylinder ensures smooth gear shifts, precise pedal feel, and reliable performance in every driving condition.
At Design911, we supply premium clutch master cylinders engineered to meet or exceed original performance standards. Built using high-grade materials and precision internal seals, each unit delivers consistent hydraulic pressure, long-term durability, and excellent pedal response.
Whether you’re restoring a classic Porsche or maintaining a modern model, our clutch master cylinders guarantee the performance, precision, and reliability your drivetrain demands.
What Does a Clutch Master Cylinder Do?
The clutch master cylinder forms the first stage of your Porsche’s hydraulic clutch system, transmitting driver input into fluid pressure for gear engagement.
Core Functions:
- Converts pedal movement into hydraulic pressure.
- Delivers fluid to the clutch slave cylinder for smooth disengagement.
- Ensures accurate clutch engagement for seamless gear shifts.
- Maintains pedal feel and consistent hydraulic response.
- Supports high-performance driving with precise modulation.
Without a fully functioning master cylinder, the clutch cannot disengage properly, leading to difficulty selecting gears or complete transmission failure.
Why Do Clutch Master Cylinders Fail or Wear Out?
Over time, hydraulic components experience wear from pressure cycles, fluid contamination, and heat exposure — eventually reducing clutch performance.
Common Causes of Failure Include:
- Internal seal wear or leakage.
- Corrosion from moisture in hydraulic fluid.
- Air ingress into the hydraulic system.
- Damaged piston or bore from debris or age.
- Fluid contamination reducing hydraulic efficiency.
When the master cylinder begins to fail, symptoms may include a soft or sinking clutch pedal, fluid leaks near the pedal, or difficulty shifting gears.
Why Replace Your Porsche Clutch Master Cylinder?
Replacing a worn or leaking clutch master cylinder restores precise pedal pressure, smooth gear changes, and long-term hydraulic reliability.
Key Benefits:
- Restores responsive clutch operation and pedal feel.
- Prevents clutch drag, slippage, or missed gear shifts.
- Ensures stable hydraulic pressure across the system.
- Reduces risk of air or fluid leaks in the clutch circuit.
- Compatible with Porsche 911, Cayman, Boxster, Panamera, Macan, and classic models.
- Ideal for daily driving, restorations, and motorsport applications.
For best performance, always replace clutch fluid and inspect the slave cylinder when fitting a new master cylinder.
Highlights
- Precision-engineered Porsche clutch master cylinders.
- Corrosion-resistant construction for long service life.
- Consistent hydraulic performance under pressure.
- Direct-fit replacement for Porsche clutch systems.
- Designed for reliability, responsiveness, and smooth shifting.
- Suitable for restoration, maintenance, or performance use.
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