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Brake pad wear sensor. Porsche Boxster 986 / 996 / 996TT / 997 › 99661236501
- 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 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08

Porsche 996 C2 / C4 / C4S Front & Rear Caliper
Porsche 996 Turbo Front & Rear Caliper

Porsche 986 Boxster 1997-2004 Front Caliper

Porsche 997 C2 / C4 MKI Rear Caliper
Price shown is for each wire sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99661236501
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 Turbo 2.5L 8V 1985-88
The OE Match Brake Pad Wear Sensor is a high-quality replacement braking system component designed to monitor brake pad condition and alert the driver when the pads have reached their minimum safe operating thickness. Manufactured to OE specifications for fit, performance and reliability, this sensor forms an essential part of the vehicle's brake wear monitoring system.
Fits:
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 Turbo 2.5L 8V 1985-88
Fitted directly into the brake pad assembly, the sensor continuously monitors brake pad wear and communicates with the vehicle's warning system. When the friction material wears to a predetermined level, the sensor activates the brake pad wear warning light, ensuring maintenance can be carried out before braking performance is compromised.
What This Product Does:
- Monitors brake pad wear throughout the life of the brake pads.
- Activates the brake wear warning light when replacement is required.
- Provides early notification of brake maintenance needs.
- Helps prevent excessive brake pad wear.
- Protects brake discs from damage caused by worn brake pads.
- Supports safe and effective braking performance.
- Assists with preventative brake system maintenance.
Symptoms Of Wear Or Failure:
- Brake pad wear warning light remaining illuminated.
- Intermittent brake wear warning messages.
- False brake wear alerts despite sufficient brake pad material.
- No warning light when brake pads are excessively worn.
- Damaged, broken or frayed sensor wiring.
- Corrosion or physical damage to the sensor body.
- Brake monitoring fault codes stored within the vehicle system.
- Warning light remaining active after brake pad replacement.
Why Replacement Matters:
- Brake pad wear sensors operate in demanding conditions and are constantly exposed to brake dust, heat, moisture, road debris and vibration. In many applications, the sensor is designed to wear alongside the brake pads and should be replaced whenever new brake pads are fitted to ensure continued monitoring accuracy.
- A damaged or malfunctioning sensor can provide inaccurate brake wear information, potentially leading to unnecessary warning lights or failure to notify the driver when brake pads require replacement. If brake pads wear beyond their safe operating limit, braking performance can be compromised and costly damage to brake discs may occur.
- Replacing a worn brake pad wear sensor restores accurate brake monitoring, ensures correct operation of the warning system and helps maintain optimum braking performance and safety. An OE Match replacement provides factory-style fitment, dependable operation and long-term reliability, making it an essential component during brake servicing and maintenance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94461221105
The product you are viewing cross references to these numbers
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 Turbo 2.5L 8V 1985-88
The OE Match Rear Brake Pad Wear Sensor is a high-quality replacement braking system component designed to monitor the condition of the rear brake pads and provide a warning when the friction material reaches its minimum safe operating thickness. Manufactured to OE specifications for fit, performance and reliability, this sensor helps ensure timely brake maintenance and supports safe, consistent braking performance.

Fits:
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 Turbo 2.5L 8V 1985-88
Installed directly into the rear brake pad assembly, the sensor forms part of the vehicle's brake wear monitoring system. As the brake pads wear down through normal use, the sensor detects when the service limit has been reached and activates the dashboard brake wear warning light, notifying the driver that brake pad replacement is required.
What This Product Does:
- Monitors rear brake pad wear throughout the life of the brake pads.
- Activates the brake wear warning indicator when service is required.
- Provides early notification of brake maintenance requirements.
- Helps prevent excessive brake pad wear.
- Protects brake discs from damage caused by worn brake pads.
- Supports safe and efficient braking performance.
- Assists with preventative maintenance of the braking system.
Symptoms Of Wear Or Failure:
- Brake wear warning light remaining illuminated.
- Intermittent brake wear warning messages.
- False brake wear alerts despite adequate brake pad thickness.
- No warning indication when brake pads are excessively worn.
- Damaged, broken or frayed sensor wiring.
- Corrosion or physical damage to the sensor body.
- Brake monitoring fault codes stored within the vehicle system.
- Warning light remaining active after brake pad replacement.
Why Replacement Matters:
- Rear brake pad wear sensors operate in harsh conditions and are continually exposed to brake dust, heat, moisture, road debris and vibration. In many applications, the sensor is designed to wear alongside the brake pads and should be replaced whenever new rear brake pads are installed to ensure accurate wear monitoring.
- A damaged or malfunctioning sensor can provide inaccurate brake wear information, potentially resulting in unnecessary warning lights or failure to alert the driver when brake service is required. If brake pads wear beyond their safe operating limit, braking efficiency can be reduced and costly damage to the brake discs may occur.
- Replacing a worn rear brake pad wear sensor restores accurate brake wear monitoring, ensures proper operation of the dashboard warning system and helps maintain safe braking performance. An OE Match replacement provides factory-style fitment, dependable operation and long-term reliability, making it an essential component during brake servicing and maintenance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94461221104
The product you are viewing cross references to these numbers
- 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 944 3.0 12/88-11/95
Porsche 944 Turbo 2.5 01/87-07/91
Price shown is for each wire sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95161221200
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- 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 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Fits front and rear brakes
and 
Fits:
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998
Porsche 944S2 - 1987 to 1991
Porsche 944 turbo - 1985 to 1991
Porsche 968 - 1992 to 1995
Porsche 928 S4 / GTS - 1987 to 1992
Click 'Zoom in' for large parts diagram.
Diagram ref no 21
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92861236100
The product you are viewing cross references to these numbers
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