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Brake Pad Wear Sensors
By OE Match
- Porsche 928S4 5.0L 1987-92
Complete set of replacement brake shims and wire sensors, 20 PARTS

Fits:
Porsche 928 S4 5.0ltr - 1987
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEPADAC928S4.FR.OEM
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 928S4 5.0L 1987-92
Complete set of replacement brake shims and wire sensors, 20 PARTS

Fits:
Porsche 928 S4 5.0ltr - 1988
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEPADAC928S4.1.FR.OEM
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
Complete set of replacement brake shims and wire sensors, 20 PARTS

Fits:
Porsche 928 S4 5.0ltr - 1989 to 1992
Porsche 928 GT 5.0ltr - 1989 to 1991
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
BRAKEPADAC928S4.2.FR.OEM
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
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 thickness. Manufactured to OE specifications for fit, performance and reliability, this sensor plays a vital role in maintaining safe braking performance and ensuring timely brake maintenance.
Fits:
- Porsche 928S2 4.7L 1986
- Porsche 928S4 5.0L 1987-88
Installed directly into the rear brake pad assembly, the sensor forms part of the vehicle's brake wear monitoring system. When the brake pads wear down to a predetermined service limit, the sensor activates the dashboard brake wear warning light, alerting the driver that rear brake pad replacement is required.
What This Product Does:
- Monitors rear brake pad wear throughout the service life of the brake pads.
- Activates the brake wear warning light when brake pads require replacement.
- 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 effective 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 warnings despite adequate brake pad thickness.
- 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:
- Rear brake pad wear sensors operate in harsh 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 rear brake pads are fitted to maintain accurate wear monitoring.
- A damaged or malfunctioning sensor can provide inaccurate information about brake pad condition, 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 performance can be compromised and costly damage to 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.
92861231304
The product you are viewing cross references to these numbers
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
The OE Match Brake Pad Wear Sensor is a high-quality replacement braking system component designed to monitor the condition of the brake pads and provide an early warning when they have reached their minimum service thickness. Manufactured to OE specifications for fit, performance and reliability, this sensor helps ensure brake maintenance is carried out before braking performance is compromised.
Fits:
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
Fitted directly into the brake pad assembly, the wear sensor forms part of the vehicle's brake monitoring system and communicates with the dashboard warning circuit. When the brake pad friction material wears to a predetermined level, the sensor activates the brake wear warning indicator, alerting the driver that replacement brake pads are required.
What This Product Does:
- Monitors brake pad wear during normal operation.
- Activates the brake pad wear warning light when pads reach their wear limit.
- Provides early notification of required brake maintenance.
- Helps prevent excessive brake pad wear.
- Protects brake discs from damage caused by worn-out pads.
- Supports safe and effective braking performance.
- Assists with preventative maintenance of the braking system.
Symptoms Of Wear Or Failure:
- Brake wear warning light remaining permanently illuminated.
- Intermittent brake wear warning messages.
- False wear warnings despite adequate brake pad thickness.
- No warning light when brake pads are excessively worn.
- Damaged, frayed or broken sensor wiring.
- Corrosion or physical damage to the sensor body.
- Brake monitoring fault codes stored in the vehicle system.
- Warning light remaining active after brake pad replacement.
Why Replacement Matters:
- Brake pad wear sensors operate in a harsh environment, exposed to high temperatures, brake dust, moisture, road debris and constant vibration. As part of their design, many sensors are intended to wear alongside the brake pads and are commonly replaced during brake servicing.
- A damaged or worn sensor can provide inaccurate information regarding brake pad condition. This may result in unnecessary warning lights or, more critically, failure to alert the driver when brake pads require replacement. If brake pads are allowed to wear beyond their service limit, brake discs can become damaged, increasing repair costs and reducing braking effectiveness.
- Replacing a worn brake pad wear sensor restores accurate brake monitoring functionality, ensures the warning system operates correctly 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 whenever brake pads are replaced.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92861231502
The product you are viewing cross references to these numbers
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91

Porsche 928 1989-91 Front Caliper
Price shown is for each wire sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92861236502
The product you are viewing cross references to these numbers
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
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 alert the driver when the friction material reaches its minimum safe operating thickness. Manufactured to OE specifications for fit, function and reliability, this sensor helps ensure timely brake maintenance and supports safe braking performance.

Fits:
- Porsche 928S4 5.0L 1989-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Installed directly into the rear brake pad assembly, the sensor continuously monitors brake pad wear and communicates with the vehicle's brake warning system. When the brake pads wear down to a predetermined limit, the sensor activates the dashboard brake wear warning light, notifying the driver that rear brake pad replacement is required.
What This Product Does:
- Monitors rear brake pad wear throughout the service life of the brake pads.
- Activates the brake wear warning indicator when replacement is required.
- Provides early warning of rear 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 wear warning light remaining illuminated.
- Intermittent brake wear warning messages.
- False brake wear alerts despite adequate brake pad thickness.
- 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:
- Rear brake pad wear sensors operate in demanding conditions and are exposed to heat, brake dust, moisture, road debris and constant 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 continued monitoring accuracy.
- 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 pads require replacement. If brake pads wear beyond their service limit, braking performance 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 rear brake servicing and maintenance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92861236301
The product you are viewing cross references to these numbers
OEMatch Brake Pad Wear Sensors — Stopping Power, Consistent Control
OEMatch brake pad wear sensors for Porsche models monitor pad thickness and provide timely warnings when replacement is needed. Accurate sensing supports routine maintenance, helps protect discs from excessive wear and contributes to predictable braking behaviour across classic and modern Porsche vehicles.
Understanding OEMatch Brake Pad Wear SensorsOEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original brake pad wear sensors. OE (Original Equipment) refers to parts matching original specifications for the brake pad wear sensors and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM brake pad wear sensors engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. These sensors detect pad material loss either by completing or interrupting an electrical circuit or by a change in resistance as the pad wears, which triggers a dashboard warning or service message. Sensors are routed and secured close to the pads and rely on intact insulation and secure connectors to deliver reliable signals. OEMatch maintains a wide Porsche-focused catalogue and extensive OE cross-references to help identify the correct item for each model and application.
Benefits Include- Restores accurate pad-wear monitoring so replacements are identified in good time.
- Helps prevent unnecessary disc damage by prompting timely pad changes.
- Simplifies servicing with standardised connections and mounting that fit original locations.
- Supports consistent warning-system behaviour across many Porsche models.
- Exposure to high brake temperatures can melt or crack sensor housings or cable insulation.
- Corrosion or ingress from water and road salt can cause electrical faults.
- Abrasion and vibration can wear or fray sensor cables and protective sleeving.
- Poor connector contacts or incorrect routing during servicing may interrupt the signal.
Replacing faulty or degraded sensors preserves the vehicle’s ability to warn of low pad thickness, reducing the risk of disc damage and helping maintain braking consistency. Timely replacement supports scheduled maintenance and contributes to overall braking system reliability for Porsche models.
Advantages- Wide model coverage and OE cross-references to aid correct part selection.
- Designed to fit original mounting points and clearances for straightforward installation.
- Durable materials and connector designs intended to resist heat and contamination.
- Suitable for maintenance, restoration and routine brake servicing.
These items affect safety-critical systems. Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new fasteners where specified.