Switches / Selector Switches
Fits:
Porsche 996 1998-05 Tiptronic Cars ONLY
Porsche 987 Boxster 2005-08 Tiptronic Cars ONLY
Porsche 987C Cayman 2006-08 Tiptronic Cars ONLY
Porsche 997 Cayman 2005-08 Tiptronic Cars ONLY
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99661321210
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 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 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 Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
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12 Month Warranty
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High-quality replacement gear selector multi-plug switch (also known as gear position switch or multifunction switch) for Porsche vehicles equipped with Tiptronic automatic transmissions. This switch is mounted on the exterior of the gearbox and communicates the driver’s shift-lever position to the transmission control unit and vehicle electronics. Without accurate sensor feedback, you may experience shifting faults, “Tiptronic emergency mode,” or incorrect gear markings in the instrument cluster.
Fits:
Porsche 996 >>2001 Tiptronic
Porsche 986 Boxster 1997 - 2004 Tiptronic
Porsche 987 Boxster 2005 - 2008 Tiptronic
Porsche 987C Cayman 2006 - 2008 Tiptronic
Diagram ref no 1
• Position on Vehicle: External gearbox sensor/switch mounted on the automatic transmission housing behind the lever mechanism.
• Cross-Reference / Alternative Numbers: 986 325 612 00, 986 325 612 01, 986 325 612 02; Current reference: 986 325 612 03.
When this switch fails or wears out, symptoms can include:
• Dash shows incorrect gear or flashes D/N warning
• Transmission stuck in “emergency” or shifts only to first gear PFF +1
• Passing-off codes from PIWIS or similar diagnosing tiptronic position errors
• Rough shifting or TIP-tronic mode faults
Replacing the switch with a correctly unit restores the gear-lever-to-transmission interface, prevents costly error codes or limp mode and ensures full Tiptronic function.
When to replace:
• If you are experiencing Tiptronic mode failures or error messages
• On a high-mileage Boxster/996 with automatic gearbox and selector faults
• During transmission servicing when the external switch is accessible.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98632561203
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 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
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12 Month Warranty
Worldwide Delivery
Fits:
Porsche 996 >>2001 Tiptronic
Porsche 986 Boxster 1997 - 2004 Tiptronic
Porsche 987 Boxster 2005 - 2008 Tiptronic
Porsche 987C Cayman 2006 - 2008 Tiptronic
Diagram ref no 1
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98632561203
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 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
Shop Securely
12 Month Warranty
Worldwide Delivery
Porsche Gearbox & Selector Switches | Precision Sensors for Reliable Gear Position Detection
Gearbox and selector switches are vital electrical components that monitor and communicate the position of your Porsche’s transmission selector mechanism. These switches control various functions such as reverse lights, neutral safety systems, and gear recognition sensors — ensuring smooth operation and accurate feedback to your vehicle’s control systems.
At Design911, we supply high-quality gearbox and selector switches engineered to match or exceed original design standards. Built from durable materials and precision-calibrated for reliable electrical contact, our switches guarantee long-lasting performance and accurate signal transmission across all Porsche models.
Whether you’re diagnosing an intermittent gear signal fault or restoring full gearbox function, our gearbox switches deliver consistent reliability and compatibility with both manual and automatic transmissions.
What Do Gearbox Switches & Selector Switches Do?
Gearbox and selector switches serve as sensors that detect the position of internal or external gearbox components, sending signals to the ECU or dashboard systems.
Core Functions:
- Detect and communicate gear position to the ECU or driver display.
- Activate reverse lights and safety interlocks.
- Enable correct start/stop conditions (neutral or park).
- Support smooth gear changes and transmission coordination.
- Ensure accurate feedback for modern electronic control systems.
Without properly functioning switches, gear position data can become inaccurate, leading to shifting issues, warning lights, or even start-prevention in automatic models.
Why Do Gearbox & Selector Switches Fail or Malfunction?
Due to constant exposure to vibration, oil, and heat, gearbox switches are prone to electrical degradation or mechanical failure over time.
Common Causes of Failure Include:
- Corrosion or oil ingress into the switch housing.
- Worn or damaged electrical contacts causing intermittent signals.
- Heat damage or cracked casings from prolonged use.
- Wiring or connector corrosion from moisture exposure.
- Mechanical wear in internal selector linkages affecting engagement.
When gearbox or selector switches fail, you may notice issues such as reverse lights not activating, erratic gear indication, or inability to start the car in neutral or park.
Why Replace Your Porsche Gearbox / Selector Switches?
Replacing faulty gearbox switches ensures accurate gear detection, restores electrical safety functions, and eliminates error codes. High-quality replacements improve electrical reliability and responsiveness, ideal for both restoration and performance applications.
Key Benefits:
- Restores accurate gear position signalling.
- Eliminates dashboard warning lights and shifting faults.
- Prevents start-prevention or safety lockout issues.
- Ensures proper communication between gearbox and ECU.
- Compatible with Porsche manual, automatic, and PDK systems.
- Easy-fit replacements designed for long-term durability.
It’s recommended to inspect and replace gearbox or selector switches during transmission servicing to prevent future electrical or safety-related faults.
Highlights
- Premium Porsche gearbox and selector switches.
- Designed for precision gear position detection.
- Reliable electrical performance and durable construction.
- Compatible with Porsche 911, Cayman, Boxster, and PDK models.
- Essential for gearbox safety, signalling, and performance.
- Ideal for servicing, repairs, and complete transmission rebuilds.
