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Brake Pad Wear Sensors
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Brake pad wear sensor – Porsche 911 1984–89 99361296502 by OE Match for selected Porsche 911 & 912 (1965–1989) models, including 911 3.2L and 911 3.2L G50 applications. Supplied information notes front fitment with the new pin type, and the part is listed as each wire sensor.
What This Product Does A brake pad wear sensor monitors pad wear and works with the vehicle warning system to indicate when brake pad replacement may be required. OE Match parts are listed for Porsche applications where the supplied model coverage and OE reference can be used to confirm suitability.
Functions
- Monitors brake pad wear at the fitted position.
- Supports the brake wear warning circuit.
- Helps identify worn pads before further brake service work is planned.
- Can be renewed during pad replacement or brake overhaul work.
- Matches the supplied OE reference 99361296502.
Symptoms of Fault
- Brake wear warning message or light remains on after pad replacement.
- Damaged or broken sensor cable near the caliper area.
- Broken clips or poor location around the brake assembly.
- Warning light faults caused by a worn or damaged sensor.
- Brake warning indications linked to incorrect application or mismatched parts.
Why Replacement Matters
Brake pad wear sensors are commonly replaced when pads are renewed, or when the warning system indicates a broken, worn or damaged sensor. Replacing the correct sensor supports accurate brake wear indication and helps avoid repeat work caused by damaged wiring or incorrect fitment.
Fits
- 911 & 912 (1965–1989)
- 911 & 912 (1965–1989) > 911 1984–1986 3.2L
- 911 & 912 (1965–1989) > 911 1987–1989 3.2L G50
FAQs
- Should it be replaced with brake pads? Wear sensors are commonly renewed when brake pads are changed, especially if the existing sensor is damaged or has triggered a warning.
- Is it plug-and-play with OE wiring? The supplied information describes this as an OE Match replacement for the listed Porsche reference; confirm connector type and model-year notes before ordering.
- How should compatibility be checked? Cross-check OE number 99361296502, model year, fitted position and connector details for the vehicle.
Check fitment for your specific vehicle (model, year, engine) before ordering.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99361296502
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 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 944 2.5L 8V 1982-87

Porsche 944 1985-86 front
Porsche 911 1984-89 3.2L rear (Old pin type)
Price is for each wire sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94461221103
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 84-89 3.2L Front
Price is for each wire sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99361296502
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 944 2.5L 8V 1982-87


Porsche 944 1985-86 front

Porsche 911 1984-89 3.2L rear (Old pin type)
Price is for each wire sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94461221103
The product you are viewing cross references to these numbers
Porsche Brake Pad Anti-Wear Sensors | Design911 Precision Components for Safety, Monitoring & Maintenance
Brake pad anti-wear sensors play a vital role in your Porsche’s braking system by monitoring pad thickness and alerting you when replacement is needed. By providing real-time data, these sensors help prevent excessive wear, protect brake discs, and maintain braking safety. Replacing worn or damaged sensors ensures your Porsche’s onboard systems can accurately detect pad wear — preserving both performance and peace of mind.
At Design911, we supply a comprehensive range of brake pad anti-wear sensors designed for precise fitment and dependable performance. Manufactured using high-grade materials and advanced sensor technology, our components ensure accurate readings under all driving conditions. Ideal for routine maintenance, restoration, or brake system upgrades, these sensors help your Porsche maintain its legendary braking precision.
What Do Brake Pad Anti-Wear Sensors Do?
Brake pad wear sensors are an essential electronic component that monitor the condition of your brake pads and alert the driver when they need replacement.
Core Functions:
• Continuously monitor brake pad thickness.
• Trigger dashboard warning lights when pads reach the wear limit.
• Protect brake discs from damage caused by worn pads.
• Support preventative maintenance and consistent braking performance.
• Ensure optimal braking efficiency and driver safety.
Accurate brake pad sensors allow you to maintain Porsche’s high standards of safety, performance, and responsiveness.
Why Do Brake Pad Anti-Wear Sensors Fail or Degrade?
Because they operate in extreme environments near the wheels and brakes, wear sensors are exposed to heat, friction, and contamination, which can cause malfunction or damage over time.
Common Causes of Failure Include:
• Melting or cracking due to high brake temperatures.
• Corrosion or electrical failure from water and road salt.
• Cable wear or fraying caused by vibration or debris.
• Poor connections or sensor dislodgement during servicing.
• Age-related degradation of wiring or insulation.
When a sensor fails, the system may provide false warnings or fail to detect worn pads, increasing the risk of brake system damage or reduced safety.
Why Replace or Upgrade Your Porsche Brake Pad Anti-Wear Sensors?
Replacing faulty or aged sensors ensures your Porsche’s braking system continues to deliver accurate monitoring and performance reliability. Design911’s precision-engineered sensors are crafted for long-term durability and compatibility across Porsche models.
Key Benefits:
• Restores accurate brake pad wear monitoring.
• Prevents unnecessary pad or disc wear.
• Heat- and moisture-resistant design for long-lasting reliability.
• Plug-and-play fitment for easy installation.
• Engineered for exact Porsche compatibility.
• Ideal for maintenance, upgrades, or complete brake servicing.
Design911’s Porsche brake pad anti-wear sensors ensure consistent safety alerts and reliable performance — maintaining the precision and quality expected of every Porsche braking system.
Highlights
• Premium Porsche brake pad wear sensors for accurate
monitoring.
• Designed to withstand extreme heat and vibration.
• Ensures timely replacement of brake pads for safety.
• Protects discs and braking components from excessive wear.
• Compatible with classic and modern Porsche models.
• Perfect for servicing, restoration, or performance upgrades.