Brake & Clutch Switch


- 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 TURBO 2000-05
- Porsche 996 GT3 MKI 1999-02
- 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 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- 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
Sold Each.
Fits:
Porsche 986 Boxster 1997>>2004 (M249 / M454)
Porsche 987 Boxster MKI & MKII 2005>>2012
Porsche 987C Cayman MKI & MKII 2005>>2012
Porsche 996 C2 / C4 >>1999 (M454)
Porsche 996 C2 / C4 / C4S 2000>>2005
Porsche 996 Turbo 2001>>2005 (M454)
Porsche 996 GT3 1999>>2005
Porsche 997 Carrera MKI 2005>>2008 (I480)
Porsche 997 Carrera MKII 2009>>2012
Porsche 997 Turbo MKI & MKII 2007>>2013
Porsche 997 GT3 2007>>2011
* M249 - Tiptronic Transmission
* M454 - Automatic Speed Control
* I480 - 6-Speed Manual Transmission
Diagram Ref No 17
This Product Supersedes Porsche's Old Part Number:
- 99661311400
- 99661311401
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99661311402
The product you are viewing cross references to these numbers




- 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 TURBO 2000-05
- Porsche 996 GT3 MKI 1999-02
- 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 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- 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
Sold Each.
Fits:
Porsche 986 Boxster 1997>>2004 (M249 / M454)
Porsche 987 Boxster MKI & MKII 2005>>2012
Porsche 987C Cayman MKI & MKII 2005>>2012
Porsche 996 C2 / C4 >>1999 (M454)
Porsche 996 C2 / C4 / C4S 2000>>2005
Porsche 996 Turbo 2001>>2005 (M454)
Porsche 996 GT3 1999>>2005
Porsche 997 Carrera MKI 2005>>2008 (I480)
Porsche 997 Carrera MKII 2009>>2012
Porsche 997 Turbo MKI & MKII 2007>>2013
Porsche 997 GT3 2007>>2011
* M249 - Tiptronic Transmission
* M454 - Automatic Speed Control
* I480 - 6-Speed Manual Transmission
Diagram Ref No 17
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99661311402
The product you are viewing cross references to these numbers





- 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 TURBO 2000-05
- Porsche 996 GT3 MKI 1999-02
- 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 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- 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
- Porsche Carrera GT

Fits:
Porsche 986 Boxster 1997-04 (M249 / M454)
Porsche 987 Boxster MKI & MKII 2005>>
Porsche 987C Cayman MKI & MKII 2006>>
Porsche 996 Carrera 1995-05 (M454)
Porsche 996 Turbo 2001-05 (M454)
porsche 996 GT3 1999-05
Porsche 997 Carrera MKI 2005-08 (I480)
Porsche 997 Carrera MKII 2009>>
Porsche 997 Turbo MKI & MKII 2007>>
Porsche 997 GT3 2007>>
Porsche Carrera GT 2004-06
* M249 - tiptronic transmission
* M454 - automatic speed control
* I480 - 6-speed manual transmission
Click 'Zoom in' for large parts diagram.
Diagram ref no 17.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99661311303
The product you are viewing cross references to these numbers




- 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 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
- 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 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13

Fits:
Porsche 986 Boxster 1997-04 (M249 / M454)
Porsche 987 Boxster MKI & MKII 2005>>
Porsche 987C Cayman MKI & MKII 2006>>
Porsche 996 Carrera 1995-05 (M454)
Porsche 996 Turbo 2001-05 (M454)
porsche 996 GT3 1999-05
Porsche 997 Carrera MKI 2005-08 (I480)
Porsche 997 Carrera MKII 2009>>
Porsche 997 Turbo MKI & MKII 2007>>
Porsche 997 GT3 2007>>
Porsche Carrera GT 2004-06
* M249 - tiptronic transmission
* M454 - automatic speed control
* I480 - 6-speed manual transmission
Click 'Zoom in' for large parts diagram.
Diagram ref no 17.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99661311303
The product you are viewing cross references to these numbers



Ensure the reliability and responsiveness of your Porsche’s braking and clutch systems with genuine and aftermarket brake & clutch switches from Design911. These vital electrical components ensure accurate pedal signal transmission, improving safety, drivability, and system performance.
What They Are & What They Do
Brake and clutch switches are small, yet crucial electrical sensors located
near the pedal assemblies.
- The brake switch activates the rear brake lights and may also interact with systems like cruise control, ABS, and stability management.
- The clutch switch helps manage engine start permissions, cruise control disengagement, and gear-change smoothness on manual and semi-automatic transmissions.
Why They Fail
These switches can degrade over time due to constant mechanical use,
electrical contact wear, heat exposure, or moisture ingress. Symptoms of
failure include non-functioning brake lights, difficulty starting the car,
cruise control faults, or inconsistent clutch operation. Corrosion,
contamination, or worn springs can cause the switch to stick, delay, or fail
entirely.
Why They Should Be Replaced
A faulty switch compromises vehicle safety and drivability, potentially
disabling key systems like brake lights or start interlocks. Replacing worn
switches restores proper pedal feedback, system coordination, and safety
compliance.
Design911 supplies genuine Porsche and premium aftermarket switches designed
for perfect fitment, durability, and accurate electrical response, ensuring
your Porsche performs exactly as intended.
Genuine Porsche Brake & Clutch Switches
Factory-engineered components designed for perfect integration, reliable
signal response, and long-term durability in all driving conditions.
Aftermarket Replacement Switches
High-quality alternatives that meet or exceed OEM standards,
offering cost-effective solutions without compromising safety or performance.
Brake Pedal Switches
Essential electrical units that activate brake lights and
communicate with stability and cruise control systems for safe, reliable
braking.
Clutch Pedal Switches
Critical components for starting, gear selection, and cruise
control operation - ensuring smooth clutch engagement and accurate ECU
signalling.
Classic Porsche Switch Applications
Authentic reproduction switches for classic models such as
the 911, 912, and 964 - maintaining original design and functionality.
Fittings, Wiring & Connectors
OEM-quality connectors, mounts, and harnesses for secure
installation, optimal current flow, and long-term system reliability.