Brake Pad Wear Sensors

Front Brake Pad Wear Sensor - These should be replaced when replacing brake pads.
Sold each - 2 required per car

Maintain the safety and reliability of your Porsche braking system with these Front Brake Pad Wear Sensors. 

Fits:

• Porsche Boxster 981 2.7L 2012-16
• Porsche Boxster 981 S / GTS 3.4L 2012-16
• Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
• Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
• Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
• Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
• Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
• Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
• Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
• Porsche Cayman 2.7L 981 2013-16
• Porsche Cayman S / GTS 3.4L 981 2013-16
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)

These OE direct-fit brake wear sensor integrates seamlessly with your Porsche's electronic braking system, ensuring accurate wear monitoring and helping prevent unnecessary brake disc damage caused by excessively worn brake pads.

What Does the Brake Pad Wear Sensor Do?

The brake pad wear sensor is an important safety component that monitors the thickness of the front brake pads. As the friction material wears down, the sensor eventually contacts the brake disc, completing an electrical circuit that activates the brake wear warning light on the dashboard.

Its primary functions include:

• Monitoring front brake pad wear.
• Activating the dashboard brake warning light.
• Preventing excessive brake pad wear.
• Helping protect the brake discs from damage.
• Supporting scheduled brake maintenance.
• Improving overall braking safety.

The sensor provides an early warning, allowing brake pads to be replaced before braking performance is compromised.

Why Do Brake Pad Wear Sensors Fail?

Brake wear sensors are consumable components and are designed to be replaced during brake servicing. Common reasons for failure include:

• Normal activation once the brake pads reach their wear limit.
• Heat generated by the braking system.
• Damage during brake pad removal.
• Road debris and moisture.
• Corrosion of the electrical contacts.
• Wiring damage caused by age or movement.
• General wear after years of service.

Once activated, the sensor cannot normally be reused and should always be replaced with new brake pads.

When Should the Brake Pad Wear Sensor Be Replaced?

Replacement is recommended whenever:

• The brake wear warning light is illuminated.
• New front brake pads are installed.
• The sensor has contacted the brake disc.
• The wiring has become damaged.
• Corrosion affects the electrical connector.
• During routine brake servicing.
• As part of a complete front brake overhaul.

Replacing the sensor at the same time as the brake pads ensures accurate future wear monitoring and avoids unnecessary labour costs.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99160916500

The product you are viewing cross references to these numbers

OE Match Front Brake Pad Wear Sensor - uses a single pad sensor design, whereas the original Porsche sensor uses a double pad sensor
Sold each - 2 required per car

Keep your Porsche braking system performing safely with this OE Match Front Brake Pad Wear Sensor

Fits:

• Porsche Boxster 981 2.7L 2012-16
• Porsche Boxster 981 S / GTS 3.4L 2012-16
• Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
• Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
• Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
• Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
• Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
• Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
• Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
• Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
• Porsche Cayman 2.7L 981 2013-16
• Porsche Cayman S / GTS 3.4L 981 2013-16
• Porsche Cayman 718 2.0L Manual (300 Bhp)
• Porsche Cayman 718 2.0L PDK (300 Bhp)
• Porsche Cayman S 718 2.5L Manual (350 Bhp)
• Porsche Cayman S 718 2.5L PDK (350 Bhp)
• Porsche Cayman T 718 2.0L Manual (300 Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)

Brake pad wear sensors provide an early warning when your front brake pads have reached their service limit, allowing them to be replaced before braking performance is affected or damage occurs to the brake discs.

This OE Match replacement uses a single pad sensor design, whereas the original Porsche sensor uses a double pad sensor. Despite this difference, the sensor functions exactly as intended by connecting it to one brake pad only, providing the same reliable brake wear monitoring and dashboard warning operation as the original system.

Manufactured to OE-quality standards, this direct-fit replacement offers dependable performance, excellent durability and outstanding value.

What Does a Brake Pad Wear Sensor Do?

The brake pad wear sensor is an electronic monitoring device fitted to the brake pads. As the friction material wears down, the sensor eventually contacts the brake disc, completing an electrical circuit that illuminates the brake wear warning light on the dashboard.

Its primary functions include:

• Monitoring front brake pad wear.
• Activating the dashboard brake warning light.
• Preventing excessive brake pad wear.
• Helping protect expensive brake discs.
• Supporting scheduled vehicle maintenance.
• Improving braking safety.

The warning system gives the driver sufficient notice to replace the brake pads before braking performance is compromised.

Single Sensor Design

Unlike the original Porsche sensor, which monitors two brake pads, this OE Match version uses one single pad sensor.

This is completely normal for this replacement design and does not affect operation. Simply connect the sensor to one brake pad, where it will function exactly as intended by providing accurate brake wear indication through the factory warning system.

Why Do Brake Pad Wear Sensors Fail?

Brake wear sensors are designed as consumable service components and are normally replaced during every brake pad change.

Common reasons for replacement include:

• Activation after the brake pads reach their wear limit.
• Damage during brake pad removal.
• Heat generated by the braking system.
• Moisture and road contamination.
• Corrosion of the electrical contacts.
• Wiring damage caused by movement or age.
• General deterioration over time.

Once activated, a brake wear sensor should not normally be reused.

When Should the Brake Pad Wear Sensor Be Replaced?

Replacement is recommended whenever:

• The brake wear warning light is illuminated.
• New front brake pads are installed.
• The sensor has contacted the brake disc.
• The wiring becomes damaged.
• Corrosion affects the electrical connector.
• During routine brake servicing.
• Completing a front brake overhaul.

Brake pad wear sensors should normally be replaced whenever replacing your brake pads to ensure accurate brake wear monitoring and reliable long-term operation.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99160916500

The product you are viewing cross references to these numbers

Brake pad wear sensors help to indicate if your brake pads need changing. These should normally be replaced when replacing your brake pads.
Fits: Left or Right, Price shown is for each wire sensor.

• Porsche Boxster 981 2.7L 2012-16
• Porsche Boxster 981 S / GTS 3.4L 2012-16
• Porsche Boxster 981 Spyder 3.8L 2016 (for PCCB)
• Porsche Boxster 718 2.0L Manual (300 Bhp)
• Porsche Boxster 718 2.0L PDK (300 Bhp)
• Porsche Boxster S 718 2.5L Manual (350 Bhp)
• Porsche Boxster S 718 2.5L PDK (350 Bhp)
• Porsche Boxster T 718 2.0L Manual (300 Bhp)
• Porsche Boxster T 718 2.0L PDK (300 Bhp)
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) (for PCCB)
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) (for PCCB)
• Porsche Cayman 2.7L 981 2013-16
• Porsche Cayman S / GTS 3.4L 981 2013-16
• Porsche Cayman 718 2.0L Manual (300Bhp)
• Porsche Cayman 718 2.0L PDK (300Bhp)
• Porsche Cayman S 718 2.5L Manual (350Bhp)
• Porsche Cayman S 718 2.5L PDK (350Bhp)
• Porsche Cayman T 718 2.0L Manual (300Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98160916300

The product you are viewing cross references to these numbers

Rear Brake Pad Wear Sensor 
Sold each

Maintain the safety and reliability of your Porsche braking system with this OE Match Rear Brake Pad Wear Sensor. Designed for Porsche 986 Boxster, Porsche 987.1 Boxster and Porsche 987.1 Cayman models, this sensor forms an integral part of the factory brake wear monitoring system, providing an early warning when rear brake pads have reached their service limit.

Fits:

• 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 S 3.2/3.4L 2005-08/08
• Porsche Boxster S 987 MKII 3.4L 2009-12
• Porsche Cayman S 3.4L 987C 2005-08
• Porsche Cayman S / R 3.4L 987C MKII 2009-12

Installed directly into the rear brake pad assembly, the sensor continuously monitors brake pad thickness. As the friction material wears down, the sensor activates the dashboard brake warning system, alerting the driver that replacement is required. This helps prevent excessive brake wear, protects brake discs and ensures the braking system continues to perform safely and efficiently.

For Porsche sports cars, maintaining the brake wear monitoring system is an important part of preventative maintenance and long-term braking performance.

What Does a Brake Pad Wear Sensor Do?

The brake pad wear sensor is designed to monitor the remaining thickness of the brake pad friction material.

As the brake pad wears, the sensor eventually contacts the brake disc and completes an electrical circuit, triggering the brake wear warning light on the dashboard.

A correctly functioning sensor helps:

• Monitor brake pad condition
• Provide early brake wear warnings
• Prevent excessive brake pad wear
• Protect brake discs from damage
• Improve service planning
• Support safe braking performance
• Maintain factory brake monitoring functionality

The sensor acts as an important safeguard, ensuring brake maintenance can be carried out before braking performance is affected.

Why Do Brake Pad Wear Sensors Fail?

Brake wear sensors operate in a challenging environment exposed to heat, vibration, moisture and brake dust.

Common causes of failure include:

• Normal brake pad wear
• Sensor activation after reaching its wear limit
• Damaged wiring
• Corrosion within electrical connections
• Heat-related deterioration
• Physical damage during brake servicing
• Water ingress
• Age-related component fatigue

Because the sensor is designed to function alongside the brake pad, replacement is generally recommended whenever new brake pads are installed.

When Should a Brake Pad Wear Sensor Be Replaced?

The sensor should be replaced whenever it has been activated, damaged or when brake pads are renewed.

Common symptoms include:

• Brake wear warning light illuminated
• Intermittent brake warning messages
• Damaged sensor wiring
• False brake wear alerts
• Corroded electrical connections
• Sensor damage during servicing
• Rear brake pad replacement due to wear

Replacing the sensor during brake maintenance ensures the warning system continues to operate correctly.

Why Replacement Matters

A functioning brake wear sensor helps maintain braking safety while reducing the risk of costly brake repairs.

Benefits include:

• Accurate brake pad monitoring
• Reliable warning light operation
• Improved braking safety
• Protection of brake discs
• Better maintenance scheduling
• Reduced repair costs
• Improved braking system reliability
• Long-term component protection

For Porsche Boxster and Cayman owners, maintaining the brake wear monitoring system helps preserve the safety and performance expected from the Porsche brand.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98661236501

The product you are viewing cross references to these numbers

Brake pad wear sensor, for Front Left caliper.
OE Match replacement sensor designed to monitor the wear level of the front left brake pads on Porsche Boxster 987 and Cayman 987C models. When the brake pad lining reaches a predetermined thickness, this sensor triggers a warning message on the dashboard to alert the driver that service is needed.

Fits:
Porsche 987.1 Boxster 2.7L 2005 - 2008  Front Left Caliper
Porsche 987C.1 Cayman 2.7L 2006 - 2008  Front Left Caliper

Diagram ref no 7

This OE Match brake pad wear sensor is engineered to match original Porsche specifications for electrical characteristics, connector type, and mechanical fit. It functions as a reliable early-warning device that detects excessive pad wear before the pads are fully depleted, helping prevent rotor damage and maintain safe braking performance.

Replacing a worn, damaged, or missing wear sensor with this OE Match unit ensures the vehicle’s brake monitoring system works as intended, helping you stay ahead of service intervals and maintain optimal brake health.

The brake pad wear sensor detects when the friction material on the front left brake pad has worn down to a serviceable limit. It sends a signal to the vehicle’s dashboard or onboard computer, prompting a brake service notification so pads can be replaced before damage or performance degradation occurs.

Function:
• Monitors brake pad wear on the front left axle
• Interfaces with the vehicle’s warning system
• Helps prevent rotor contact from worn pads

Brake pads naturally wear with use, and without a functioning wear sensor, you may not receive timely notification of service needs. Ignoring worn pads can lead to increased stopping distances, brake noise, and damage to rotors. Installing a proper OE Match brake pad wear sensor ensures accurate monitoring, timely pad changes, and continued confidence in your braking performance.

When to replace:
•  Brake wear warning light is illuminated
•  Sensor damaged, corroded, or missing
•  After replacing front brake pads
•  During brake system servicing or upgrades
•  If wiring/connectors show signs of wear

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99761275501

The product you are viewing cross references to these numbers

Brake pad wear sensor, for Front Left caliper.
This Brake Pad Wear Sensor is a genuine Porsche replacement sensor designed to keep your brake warning system working accurately. It replaces the previous 99761275500 part number and provides a precise fit for front brake pad wear detection on select Boxster and Cayman models. This ensures timely maintenance alerts and supports continued safe braking performance.

Fits:
Porsche 987.1 Boxster 2.7L 2005 - 2008 Front Left Caliper
Porsche 987C.1 Cayman 2.7L 2006 - 2008 Front Left Caliper

Diagram ref no 7

Brake pad wear sensors play a critical safety role in modern braking systems. Without them, the driver may not be alerted in time to deteriorating brake pads, increasing the risk of reduced stopping performance, metal-on-metal wear, and rotor damage. Fitting a Genuine Porsche OE sensor ensures the wear-warning circuit functions exactly as designed with compatible connectors, lengths, and electrical characteristics.

•  Installed on: Front brake assembly
•  Position: Mounted alongside the front brake pads and routed to the vehicle’s wiring harness
•  Function location: The sensor end sits adjacent to the brake pad backing plate so it can sense when pad material has worn to the service limit.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99761275501

The product you are viewing cross references to these numbers

Brake pad wear sensor, REAR
OE Match rear brake pad wear sensor for Porsche 981 Boxster, 981 Cayman, 718 Boxster, and 718 Cayman models. This replacement rear brake wear indicator helps monitor brake pad condition and alert the driver when the rear brake pads are reaching their service limit. These should normally be replaced when replacing your brake pads.
Sold individually, There are 2 per axle.

• Porsche Boxster 981 2.7L 2012-16
• Porsche Boxster 981 S / GTS 3.4L 2012-16
• Porsche Boxster 981 Spyder 3.8L 2016 (for PCCB)
• Porsche Boxster 718 2.0L Manual (300 Bhp)
• Porsche Boxster 718 2.0L PDK (300 Bhp)
• Porsche Boxster S 718 2.5L Manual (350 Bhp)
• Porsche Boxster S 718 2.5L PDK (350 Bhp)
• Porsche Boxster T 718 2.0L Manual (300 Bhp)
• Porsche Boxster T 718 2.0L PDK (300 Bhp)
• Porsche Boxster GTS 718 2.5L Manual (365 Bhp)
• Porsche Boxster GTS 718 2.5L PDK (365 Bhp)
• Porsche Boxster GTS 718 4.0L Manual (400 Bhp) (for PCCB
• Porsche Boxster GTS 718 4.0L PDK (400 Bhp) (for PCCB
• Porsche Cayman 2.7L 981 2013-16
• Porsche Cayman S / GTS 3.4L 981 2013-16
• Porsche Cayman 718 2.0L Manual (300Bhp)
• Porsche Cayman 718 2.0L PDK (300Bhp)
• Porsche Cayman S 718 2.5L Manual (350Bhp)
• Porsche Cayman S 718 2.5L PDK (350Bhp)
• Porsche Cayman T 718 2.0L Manual (300Bhp)
• Porsche Cayman T 718 2.0L PDK (300 Bhp)
• Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
• Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
• Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
• Porsche Cayman GTS 718 4.0L PDK (400 Bhp)

The brake pad wear sensor fits into the rear brake pad assembly and monitors pad wear. When the pad material wears down to the sensor contact point, the system can trigger a dashboard warning, indicating that rear brake pad replacement is required.

Functions
•   Replaces the rear brake pad wear sensor
•   Monitors rear brake pad wear condition
•   Helps trigger the brake pad warning system
•   Supports safe and timely brake pad replacement
•   Used during rear brake pad or rear brake system service
•   Replaces worn, damaged, broken, brittle, or previously triggered sensors
•   OE Match replacement for Porsche Boxster and Cayman brake maintenance.

Why Replace This Part?
Brake pad wear sensors are designed to wear with the brake pads and may be damaged or triggered once the pads reach their wear limit. Sensors can also become brittle, corroded, broken, or damaged during brake servicing. Replacing the rear sensor during brake pad replacement helps restore the warning system and prevents false or missing brake wear alerts.

When to Replace This Part
•   Rear brake pads are being replaced
•   The brake pad wear warning light is illuminated
•   The sensor has been triggered by worn rear brake pads
•   The sensor wire is damaged, broken, brittle, or corroded
•   Rear brake warning faults are being diagnosed
•   The sensor was damaged during brake service
•   The vehicle is undergoing Porsche Boxster or Cayman brake system restoration.

Where it fits on the car
This sensor fits within the rear brake pad wear monitoring system on Porsche 981 Boxster, 981 Cayman, 718 Boxster, and 718 Cayman models. Exact position can vary depending on model year, rear brake caliper type, and brake pad specification.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98160916300

The product you are viewing cross references to these numbers

Brake pad wear sensors help to indicate if your brake pads need changing. These should normally be replaced when replacing your brake pads.


For cars with Ceramic barke PCCB (I450)
Porsche 981 Boxster / Boxster Spyder 2012-16 (FRONT)
Porsche 982 (718) Boxster 2017>> (FRONT)
Porsche 981C Cayman / Cayman GT4 2014-16 (FRONT)
Porsche 982C (718) Cayman 2017>> (FRONT)

Price shown is for each wire sensor.
Fits Left or Right


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99160918100

The product you are viewing cross references to these numbers

Brake pad wear sensors help to indicate if your brake pads need changing. These should normally be replaced when replacing your brake pads.


For cars with Ceramic brake PCCB (I450)
Porsche 981 Boxster / Boxster Spyder 2012-16 (FRONT)
Porsche 982 (718) Boxster 2017>> (FRONT)
Porsche 981C Cayman / Cayman GT4 2014-16 (FRONT)
Porsche 982C (718) Cayman 2017>> (FRONT)

Price shown is for each wire sensor.
Fits Left or Right

Brake Pad Wear Sensor 
The Genuine Porsche brake pad wear sensor is an OE sender wire / wear indicator for selected Porsche 987 Boxster and 987 Cayman rear brake applications. It monitors brake pad wear and activates the warning system when the pads reach their service limit. Ideal for brake pad replacement, warning light repair or restoring accurate brake wear monitoring with Genuine Porsche parts.
Sold individually, There are 2 per axle.


Porsche 987.1 Boxster 2.7L 2005 - 2008
Porsche 987.1 Boxster S 2005 - 2008 with Ceramic brakes (PCCB)

Porsche 987.2 Boxster 2.9L 2009 - 2012
Porsche 987.2 Boxster S >>2009
Porsche 987.2 Boxster S 2009 - 2012  with Ceramic brakes (PCCB)
Porsche 987.2 Boxster Spyder 2009 - 2012  

Porsche 987C.1 Cayman 2.7L 2006 - 2008
Porsche 987C.1 Cayman S 2006 - 2008  with Ceramic brakes (PCCB)

Porsche 987C.2 Cayman 2.9L 2009 - 2012
Porsche 987C.2 Cayman S >>2009
Porsche 987C.2 Cayman R >>2009
Porsche 987C.2 Cayman S 2009 - 2012  with Ceramic brakes (PCCB)


This original Porsche brake pad wear sensor, also known as a sender wire or pad wear indicator, forms part of the brake monitoring system and helps alert the driver when the brake pads have reached their service limit.

What This Part Does / Functions
•  Monitors brake pad wear
•  Activates the brake pad warning system when the pads reach their wear limit
•  Helps alert the driver before the brake pads become excessively worn
•  Supports safe and timely brake maintenance
•  Connects into the vehicle’s brake wear monitoring circuit
•  Replaces a worn, damaged, broken or previously triggered sensor
•  Provides correct OE Porsche fitment and connector style
•  Helps restore correct brake pad warning system operation after brake service.

Why Replace This Part?
Brake pad wear sensors are exposed to heat, brake dust, water, road debris and vibration. In many cases, the sensor is designed to wear with the brake pad and should be replaced whenever new brake pads are fitted. A damaged or worn sensor may trigger a warning light, fail to alert the driver when the pads are worn, or break during brake pad replacement.

Replacing it with a Genuine Porsche OE brake pad wear sensor helps maintain accurate brake wear monitoring and correct factory fitment.

Common Symptoms of a Faulty Brake Pad Wear Sensor
•  Brake pad warning light illuminated
•  Warning light remains on after pad replacement
•  Broken or brittle sensor wire
•  Sensor worn through by brake pad contact
•  Corroded or damaged connector
•  False brake wear warning
•  No warning despite worn brake pads
•  Sensor damaged during brake service.

When to Replace This Part
•  When replacing rear brake pads
•  If the brake pad warning light is active
•  If the sensor has contacted the brake disc
•  If the sensor wire is damaged, cut, brittle or broken
•  If the connector is corroded or no longer clips securely
•  During rear brake caliper or brake disc service
•  During brake system restoration
•  When fitting new pads and restoring correct brake wear monitoring

Where It Fits on the Car
This sensor fits into the brake pad wear sensor slot on the relevant brake pad and connects to the vehicle’s brake wear warning wiring. It is commonly used at the rear caliper position on selected Porsche 987 Boxster and 987 Cayman models.

Correct routing is important to prevent the wire from rubbing against the wheel, brake disc or suspension components.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98761267602

The product you are viewing cross references to these numbers

Rear Brake Pad Wear Sensor 
Sold each

Maintain the safety, reliability and performance of your Porsche braking system with this OE Match Rear Brake Pad Wear Sensor. Designed specifically for Porsche 987.1 and 987.2 Boxster and Cayman models, this sensor forms an essential part of the factory brake wear monitoring system, providing an early warning when rear brake pads approach their minimum service thickness.


Porsche 987.1 Boxster 2.7L 2005 - 2008
Porsche 987.1 Boxster S 2005 - 2008 with Ceramic brakes (PCCB)

Porsche 987.2 Boxster 2.9L 2009 - 2012
Porsche 987.2 Boxster S >>2009
Porsche 987.2 Boxster S 2009 - 2012  with Ceramic brakes (PCCB)
Porsche 987.2 Boxster Spyder 2009 - 2012  

Porsche 987C.1 Cayman 2.7L 2006 - 2008
Porsche 987C.1 Cayman S 2006 - 2008  with Ceramic brakes (PCCB)

Porsche 987C.2 Cayman 2.9L 2009 - 2012
Porsche 987C.2 Cayman S >>2009
Porsche 987C.2 Cayman R >>2009
Porsche 987C.2 Cayman S 2009 - 2012  with Ceramic brakes (PCCB)

Mounted within the rear brake pad assembly, the sensor continuously monitors brake pad wear and alerts the driver via the dashboard warning system when replacement is required. This helps prevent excessive brake pad wear, protects expensive brake discs and ensures the braking system continues to perform as Porsche intended.

Whether used on a daily-driven Boxster, a Cayman road car or a track-focused build, maintaining the brake wear monitoring system helps ensure optimum braking performance and safety.

What Does a Brake Pad Wear Sensor Do?

The brake pad wear sensor is designed to monitor the remaining thickness of the brake pad friction material.

As the brake pad wears down, the sensor eventually contacts the brake disc and completes an electrical circuit that activates the brake wear warning light on the dashboard.

A properly functioning sensor helps:

• Monitor brake pad condition
• Provide early brake wear warnings
• Prevent excessive brake pad wear
• Protect brake discs from damage
• Improve maintenance planning
• Support safe braking performance
• Maintain factory brake monitoring functionality

The sensor provides valuable advance warning before braking performance is compromised.

Why Do Brake Pad Wear Sensors Fail?

Brake wear sensors operate in a demanding environment exposed to constant heat cycles, moisture, brake dust and vibration.

Common causes of failure include:

• Normal brake pad wear
• Sensor activation once wear limits are reached
• Damaged wiring
• Corrosion within electrical connectors
• Heat-related deterioration
• Physical damage during brake servicing
• Water ingress Age-related degradation

As the sensor is considered a service component, replacement is generally recommended whenever new brake pads are fitted.

When Should a Brake Pad Wear Sensor Be Replaced?

The sensor should be replaced whenever it has been activated, damaged or when new brake pads are installed.

Common symptoms include:

• Brake wear warning light illuminated
• Intermittent brake warning messages
• Damaged or broken sensor wiring
• False brake wear warnings
• Corroded sensor connectors
• Sensor damage during brake servicing
• Rear brake pad replacement due to wear

Replacing the sensor during routine brake maintenance helps ensure continued reliability of the brake monitoring system.

Why Replacement Matters

A functioning brake wear sensor helps maintain braking safety while protecting other brake system components.

Benefits include:

• Accurate brake pad monitoring
• Reliable warning light operation
• Improved braking safety
• Protection of brake discs
• Reduced maintenance costs
• Better service planning
• Improved braking system reliability
• Long-term brake component protection

For Porsche Boxster and Cayman owners, maintaining the brake wear monitoring system helps preserve both performance and peace of mind.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

98761267602

The product you are viewing cross references to these numbers

Front Brake Pad Wear Sensor.
Maintain the integrity of your Porsche's brake wear monitoring system with this OE Match Front Brake Pad Wear Sensor, manufactured as a direct replacement. Produced to OE-style specifications, this brake pad wear sensor is designed to provide accurate monitoring of front brake pad wear, alerting the driver when the brake pads have reached their service limit. Manufactured from high-quality heat-resistant materials with durable electrical connections, it delivers reliable performance, precise fitment, and long service life for Porsche maintenance, repairs, and restoration projects.



Fits:
For Cars With Ceramic Brake PCCB (I450)

• Porsche Boxster 987 S 3.2/3.4L 2005-08/08
• 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 C4 3.6L 2009-12
• Porsche 997 MKII Carrera C2S 3.8L 2009-12
• Porsche 997 MKII Carrera C4S 3.8L 2009-12
• Porsche Cayman S 3.4L 987C 2005-08
• Porsche Cayman S / R 3.4L 987C MKII 2009-12  

The front brake pad wear sensor is fitted to the brake pad and forms part of the vehicle's braking safety system. As the brake pad wears, the sensor contacts the brake disc, triggering the dashboard warning indicator to notify the driver that the pads require replacement. During routine brake servicing, the sensor should always be inspected and replaced if worn or damaged to ensure continued accuracy of the brake wear warning system.

What This Product Does:  

• Monitors the wear level of the front brake pads.
• Triggers the dashboard brake wear warning when pads reach their service limit.
• Helps prevent excessive brake pad wear.
• Supports safe and timely brake maintenance.
• Provides reliable electrical communication with the vehicle's warning system.
• Replaces worn, damaged, or activated brake pad wear sensors.
• Provides an OE-style fit for straightforward installation.

Symptoms Of Wear Or Failure:

• Brake pad wear warning light remaining illuminated.
• Brake wear warning failing to operate correctly.
• Damaged or broken sensor wiring.
• Worn or activated brake pad wear sensor during brake servicing.
• Corrosion affecting the electrical connector.
• Physical damage caused during brake pad replacement.
• Intermittent brake wear warning faults.

Why Replacement Matters:

• The front brake pad wear sensor plays an essential role in monitoring brake pad condition and providing an early warning when replacement is required. A damaged or previously activated sensor may fail to provide accurate wear information, potentially allowing brake pads to wear beyond their safe operating limits or generating false warning messages.
• Replacing the brake pad wear sensor whenever the front brake pads are renewed helps maintain the accuracy of the brake wear monitoring system, supporting safe braking performance and reducing the risk of unnecessary brake component damage. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match Front Brake Pad Wear Sensor provides reliable fit, performance, and durability for Porsche maintenance, repairs, and restoration projects.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99761267

The product you are viewing cross references to these numbers

Brake pad wear sensors help to indicate if your brake pads need changing. These should normally be replaced when replacing your brake pads.


For cars with Ceramic brake PCCB (I450)
Porsche 997.1 C2 / C2S 2005-08 FRONT
Porsche 997.2 C2 / C2S 2009-12 FRONT
Porsche 997.2 Carrera GTS / 4 GTS 2009-12 FRONT
Porsche 987.1 Boxster S 2005-08 FRONT
Porsche 987.2 Boxster S / Boxster Spyder 2009-12 FRONT
Porsche 987C.1 Cayman S 2005-08 FRONT
Porsche 987C.2 Cayman S / Cayman R 2009-12 FRONT

Price shown is for each wire sensor.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99761267

The product you are viewing cross references to these numbers

Brake pad wear sensors help to indicate if your brake pads need changing. These should normally be replaced when replacing your brake pads.


Porsche 997 C2 MKI 2005>> Front Caliper
Porsche 987 Boxster S 2004-08 Front Caliper
Porsche 987C Cayman S 2004-08 Front Caliper
Porsche 987 Boxster / Boxster S MKII 2009>> Front Caliper
Porsche 987C Cayman / Cayman S MKII 2009>> Front Caliper

Price shown is for each wire sensor.

Please select below Left or Right

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99761275

The product you are viewing cross references to these numbers