Brake Pad Wear Sensors

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




Porsche 928 1978-82 From Chassis No 92881 001801>> (Rear Caliper)
Porsche 928 S 1981-83
Porsche 928 S2 - 1984 to 1985

Price shown is for each wire sensor.

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Related, superseded, cross reference or alternative numbers for comparison.

92861231305

The product you are viewing cross references to these numbers

Brake Pad Wear Sensor.
The OE Match Brake Pad Wear Sensor is a high-quality replacement braking system component designed to monitor brake pad wear and alert the driver when the brake pads have reached their service limit. Manufactured to OE specifications for fit, function and reliability, this sensor forms an important part of the vehicle's brake wear monitoring system.

Fits:

• Porsche 928 4.5L 1978-82
• Porsche 928S 4.7L 1981-83
• Porsche 928S2 4.7L 1984-86 

Installed directly into the brake pad assembly, the sensor provides an electrical signal to the vehicle's dashboard warning system when the brake friction material becomes excessively worn. This helps ensure brake maintenance is carried out at the correct interval, protecting both braking performance and associated braking components.

What This Product Does:

• Monitors brake pad wear levels.
• Triggers the brake pad wear warning light when pads reach their service limit.
• 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.
• Provides early warning of required brake servicing.

Symptoms Of Wear Or Failure:

• Brake pad wear warning light remaining illuminated.
• Intermittent brake wear warning messages.
• False brake wear warnings despite adequate pad thickness.
• No brake wear warning when pads are excessively worn.
• Damaged, broken or corroded sensor wiring.
• Physical damage to the sensor body.
• Electrical fault codes related to the brake wear monitoring system.
• Warning lights remaining active after brake pad replacement.

Why Replacement Matters:

• Brake pad wear sensors are exposed to heat, moisture, road debris, brake dust and constant vibration. During normal operation, the sensor is designed to wear alongside the brake pads and often requires replacement when new brake pads are installed.
• A faulty or damaged sensor can provide inaccurate wear readings, potentially leading to unnecessary warning lights or, more importantly, failure to alert the driver when brake pads require replacement. This can result in excessive brake pad wear, brake disc damage and reduced braking efficiency.
• Replacing a worn or damaged brake pad wear sensor ensures accurate brake wear monitoring, restores proper warning system functionality 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.

92861231305

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 928 1978 up to chassis number 92881 01800 (Rear Caliper)

Price shown is for each wire sensor.

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

92861231303

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 928 1978- upto chassis number 92881 01800 (Rear Caliper)

Price shown is for each wire sensor.

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

92861231303

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 928 1978-79 Front Caliper
Cars upto chassis no 9288101800 Front Caliper

Price shown is for each wire sensor.

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

92861231100

The product you are viewing cross references to these numbers

Brake Pad Wear Sensor. 
The OE Match Brake Pad Wear Sensor is a high-quality replacement braking system component designed to continuously monitor brake pad condition and provide a warning when the friction material reaches its minimum safe thickness. Manufactured to OE specifications for fit, function and reliability, this sensor helps ensure timely brake maintenance and supports safe vehicle operation.

Fits:

Installed directly into the brake pad assembly, the wear sensor forms part of the vehicle's brake monitoring system. When the brake pads wear down to a predetermined level, the sensor triggers the dashboard brake wear warning light, notifying the driver that brake pad replacement is required.  

What This Product Does:

• Monitors brake pad wear throughout the service life of the pads.
• Activates the brake pad wear warning indicator when replacement is required.
• Helps prevent excessive brake pad wear.
• Protects brake discs from damage caused by worn friction material.
• Supports safe and effective braking performance.
• Assists with preventative brake maintenance.
• Provides early warning of brake service requirements.

Symptoms Of Wear Or Failure:

• Brake wear warning light remaining illuminated.
• Intermittent brake pad warning messages.
• False brake wear warnings despite healthy brake pads.
• No warning light when brake pads are excessively worn.
• Damaged, broken or corroded sensor wiring.
• Physical damage to the sensor body.
• Fault codes relating to the brake wear monitoring 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 heat, brake dust, moisture, road debris and vibration. In many applications, the sensor is designed to wear alongside the brake pads and should be replaced during brake servicing to ensure continued monitoring accuracy.
• A damaged or worn sensor can provide inaccurate brake wear information, potentially resulting in unnecessary warning lights or failure to alert the driver when brake pads have reached their service limit. If brake pads are allowed to wear excessively, braking performance can be reduced and costly damage to the brake discs may occur.
• Replacing a worn brake pad wear sensor restores accurate brake wear monitoring, ensures proper operation of the 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 maintenance and pad replacement.

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

92861231100

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 928 1978-80 Front Caliper Cars with chassis upto 9288101801

Price shown is for each wire sensor.

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

92861231104

The product you are viewing cross references to these numbers

Front Brake Pad Wear Sensor - Sold each

Maintain the safety and reliability of your Porsche braking system with this OE Match Front Brake Pad Wear Sensor, designed for Porsche 928 models produced between 1978 and 1980 from chassis number 9288101801 onwards. This sensor forms an important part of the factory brake wear monitoring system, providing an early warning when the front brake pads approach their minimum safe operating thickness.

#front
Fits:

• Porsche 928 4.5L 1978-82 – from chassis number 9288101801

Installed directly into the front brake pad assembly, the sensor continuously monitors brake pad wear and activates the dashboard brake warning light when replacement is required. This allows owners to service the braking system before braking performance deteriorates or expensive brake disc damage occurs.

For a high-performance grand touring car such as the Porsche 928, maintaining the brake wear monitoring system is essential for preserving both safety and driving confidence.

What Does a Brake Pad Wear Sensor Do?

The brake pad wear sensor monitors the remaining thickness of the brake pad friction material throughout its service life.

As the brake pad wears down, the sensor eventually makes contact with 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 scheduling
• Support safe braking performance
• Maintain factory brake monitoring functionality

The sensor acts as an important preventative maintenance component, helping drivers address brake wear before performance is compromised.

Why Do Brake Pad Wear Sensors Fail?

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

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 material fatigue

Because the sensor is designed to work alongside the brake pads, it is considered a service item and should typically be replaced whenever new brake pads are fitted.

When Should a Brake Pad Wear Sensor Be Replaced?

Replacement is recommended whenever the sensor has been activated, damaged or during brake pad replacement.

Common symptoms include:

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

Replacing the sensor at the same time as the brake pads helps ensure the brake monitoring system continues to function correctly.

Why Replacement Matters

A functioning brake wear sensor helps maintain braking performance while protecting expensive brake system components.

Benefits include:

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

For Porsche 928 owners, maintaining the brake wear monitoring system helps preserve the performance and refinement expected from Porsche's flagship grand tourer.

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

92861231104

The product you are viewing cross references to these numbers

Brake Pad Wear Sensor - Front
Sold each - 2 required per car

Maintain the safety and reliability of your Porsche braking system with this OE Match Brake Pad Wear Sensor, designed for Porsche 928 models produced between 1978 and 1985. This sensor forms part of the factory brake wear monitoring system, providing an early warning when brake pads approach their service limit.

Fits:

• Porsche 928 4.5L 1978-82
• Porsche 928S 4.7L 1981-83
• Porsche 928S2 4.7L 1984-86  

The brake pad wear sensor is installed within the brake pad and is designed to trigger a warning light when the friction material wears to a predetermined level. This allows drivers to replace brake pads before braking performance is compromised or damage occurs to the brake discs.

For a high-performance grand touring car such as the Porsche 928, maintaining the braking system in optimum condition is essential for both safety and driving enjoyment.

What Does a Brake Pad Wear Sensor Do?

The brake pad wear sensor continuously monitors the 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 correctly functioning sensor helps:

• Monitor brake pad condition
• Provide early wear warnings
• Prevent excessive brake pad wear
• Protect brake discs from damage
• Improve maintenance planning
• Enhance braking safety
• Support reliable vehicle operation

The sensor acts as an important safeguard, helping owners identify when brake service is required.

Why Do Brake Pad Wear Sensors Fail?

Brake wear sensors operate in a harsh environment exposed to heat, moisture, road debris and vibration.

Common causes of failure include:

• Normal brake pad wear
• Sensor activation during pad wear
• Damaged sensor wiring
• Corrosion in electrical connections
• Heat-related deterioration
• Physical damage during brake servicing
• Water and dirt contamination
• Age-related material fatigue

In many cases, the sensor is designed as a service item and should be replaced whenever it has been triggered or damaged.

When Should a Brake Pad Wear Sensor Be Replaced?

Brake wear sensors should typically be replaced during brake pad replacement or whenever a fault is identified.

Common symptoms include:

• Brake wear warning light illuminated
• Intermittent brake warning messages
• Damaged or broken sensor wiring
• False brake wear warnings
• Sensor damage during brake servicing
• Corrosion around the sensor connection
• Brake pads being replaced due to wear

Replacing the sensor when fitting new brake pads helps ensure the monitoring system continues to operate correctly.

Why Replacement Matters

A functioning brake pad wear sensor provides an important warning system that helps protect both the braking system and vehicle occupants.

Benefits include:

• Accurate brake wear monitoring
• Improved vehicle safety
• Reduced risk of brake damage
• Early maintenance alerts
• Protection of expensive brake discs
• Reliable dashboard warning operation
• Improved servicing accuracy
• Long-term braking system reliability

For Porsche 928 owners, maintaining the brake wear monitoring system helps preserve the safety and performance expected from a Porsche grand tourer.

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

92861231501

The product you are viewing cross references to these numbers