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Porsche > 991 (911) MK2 2016-2019 > 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19 > Brakes >

Brake Pad Wear Sensors

Brake Pad Wear Sensors

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DISPLAYING 1 to 6 (of 6 products)
Brake pad wear sensor FRONT Porsche 991 C2 / C2S / C4 / C4S - 99160917100, 99160918100
3
Brake pad wear sensor FRONT Porsche 991 C2 / C2S / C4 / C4S
99160918100/1
Product Information
Product Information
Brake pad wear sensors help to indicate if your brake pads need changing. These should normally be replaced when replacing your brake pads.

front
Porsche 991.1 C2S / C4S 2012-16 FRONT
Porsche 991.2 C2S / C4S 2017>> FRONT
Porsche 991.1 Turbo >>2016 (FRONT)
Porsche 991.2 Turbo 2017>> (FRONT)
Porsche 991 GT3 2014-17 (FRONT)



For Cars with Ceramic brake PCCB (I450)
Porsche 991.1 C2 / C2S / C4 / C4S 2012-16 (FRONT)
Porsche 991.2 C2 / C2S / C4 / C4S 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Related, superseded, cross reference or alternative numbers for comparison.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
99160917100
99160918100

The product you are viewing cross references to these numbers
Brake pad wear sensor FRONT. Porsche 991 3.4L / 981 Boxster / Cayman / 718 Boxster / Cayman 2012>> - 99160916100, 99160916500, 8DK355252-951, 1987473605, 98062200, 98062210, 1190297, WK17-297, WIR5377, WI0969, NWL5377
1
Brake pad wear sensor FRONT. Porsche 991 3.4L / 981 Boxster / Cayman / 718 Boxster / Cayman 2012>>
Special Order item
99160916500
Product Information
Product Information

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. 

front
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
99160916100
99160916500
8DK355252-951
1987473605
98062200
98062210
1190297
WK17-297
WIR5377
WI0969
NWL5377

The product you are viewing cross references to these numbers
Brake pad wear sensor Porsche 991 C2 / C4 3.4L / C2S / C4S 3.8L REAR / 992 C2 / C2S / C4 / C4S - 99160918300, 9P1907637A, 99160916300, 2BWS0231, 1987474544, ;8DK355252-051, 8DK355252051, V45720025, V45-72-0025
2
Brake pad wear sensor Porsche 991 C2 / C4 3.4L / C2S / C4S 3.8L REAR / 992 C2 / C2S / C4 / C4S
99160918300/1
Product Information
Product Information
Brake pad wear sensors help to indicate if your brake pads need changing. These should normally be replaced when replacing your brake pads.

This has a Single pad sensor which is different to the superseding OE Sensor 9P1907637A that has a Double pad sensor. This will still work as standard by connecting this to any one single pad.  


oematch

rear
Porsche 991 C2 / C4 3.4L 2012>> (REAR CALIPER)
Porsche 991 C2S / C4S 3.8L 2012>> (REAR CALIPER)
Porsche 992.1 C2 / C2S / C4 / C4S 2019>> (REAR CALIPER)
Porsche 991 GT3 (REAR CALIPER)  without option 450, without IY2
Price shown is for each wire sensor.

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

99160918300
99160918300
9P1907637A
99160916300
2BWS0231
1987474544
;8DK355252-051
8DK355252051
V45720025
V45-72-0025

The product you are viewing cross references to these numbers
Brake pad wear sensor Porsche 991 C2S 3.8L REAR - 99160918300, 99160916300
1
Brake pad wear sensor Porsche 991 C2S 3.8L REAR
Special Order item
99160918300
Product Information
Product Information
Brake pad wear sensors help to indicate if your brake pads need changing. These should normally be replaced when replacing your brake pads.

porsche

rear
Porsche 991 C2 / C4 3.4L 2012>> (REAR CALIPER)
Porsche 991 C2S / C4S 3.8L 2012>> (REAR CALIPER)

Porsche 991 GT3 (REAR CALIPER)
Price shown is for each wire sensor.

Fits Left or Right

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

99160918300
99160918300
99160916300

The product you are viewing cross references to these numbers
Brake pad wear sensor, REAR. Porsche 718 Boxster 4.0ltr / 991 S 3.8L / 991 3.4L / 991 GT3 / 992.1 Carrera / 992.2 Carrera 2 3.0ltr - 99160918300, 9P1907637A, 99160916300 - 31924, EWI-0486
2
Brake pad wear sensor, REAR. Porsche 718 Boxster 4.0ltr / 991 S 3.8L / 991 3.4L / 991 GT3 / 992.1 Carrera / 992.2 Carrera 2 3.0ltr
9P1907637A/1
Product Information
Product Information
Brake pad wear sensor. Rear.
This OE Match rear brake pad wear sensor is a replacement sensor wire used on selected Porsche 991 and 992 models. It is fitted to the rear brake caliper area and monitors brake pad wear, helping alert the driver when the rear brake pads are due for replacement. These should normally be replaced when replacing your brake pads.
This has a Double pad sensor same as OE Sensor 9P1907637A

rear
  • 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 C2S / GTS 3.8L (400/430 Bhp) 2012-16
  • Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
  • Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
  • Porsche 991.1 R 4.0L (500 Bhp) 2016
  • Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16 without option 450, without IY2
  • Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16 without option 450, without IY2
  • Porsche 992.1 Carrera 2 3.0L 2019-24
  • Porsche 992.1 Carrera 4 3.0L 2019-24
  • Porsche 992.1 Carrera 2 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4 Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS 3.0L 2019-24
  • Porsche 992.1 Carrera 2S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Carrera 4S / GTS Cabriolet 3.0L 2019-24
  • Porsche 992.1 Targa 4 3.0L 2020-24
  • Porsche 992.1 Targa 4S / GTS 3.0L 2020-24

992.1 For cars with 17-inch brake disc, brake caliper BLACK (PR:A8C+2EB)
992.1 For cars with 17-inch brake disc, brake caliper RED / BLACK (PR:A8F+2EB, 2ET)

  • Porsche 992.2 Carrera 2 3.0L 2024>>
  • Porsche 992.2 Carrera 2 3.0L Cabriolet 2024>>

Diagram ref no 7

Price shown is for each wire sensor.

Fits Left or Right

Functions

  • Monitors rear brake pad wear
  • Triggers the brake pad warning system when pads are worn
  • Helps prevent excessive brake pad wear
  • Protects brake discs from damage caused by worn-out pads
  • Supports safe and timely brake maintenance
  • Fits rear brake caliper applications
  • OE Match replacement for the original rear wear sensor wire

Why Replace This Part?
Brake pad wear sensors are normally replaced when new brake pads are fitted, as the old sensor may be worn, brittle, damaged, or triggered. A faulty or damaged sensor can cause false brake warnings or fail to alert the driver when the pads are worn. Replacing the sensor during rear brake service helps restore correct warning system operation and supports braking safety.

When to Replace This Part
  • Rear brake pads are being replaced
  • The brake pad wear warning light is displayed
  • The sensor wire is worn, cut, brittle, or damaged
  • The sensor has contacted the brake disc
  • Brake warning faults remain after pad replacement
  • Rear brake calipers or pads have been removed for service
  • As part of routine rear brake maintenance

Where it fits on the car
This sensor fits on the rear brake caliper / rear brake pad assembly. It is used in the rear braking system to monitor pad wear and connect the brake pad wear circuit to the vehicle’s warning system.



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

9P1907637A
99160918300
9P1907637A
99160916300

The product you are viewing cross references to these numbers
Brake pad wear sensor. Porsche 991
1
Brake pad wear sensor. Porsche 991
Special Order item
99160918100
Product Information
Product Information
Brake pad wear sensors help to indicate if your brake pads need changing. These should normally be replaced when replacing your brake pads.

porsche

front
Porsche 991.1 C2S / C4S 2012-16 FRONT
Porsche 991.2 C2S / C4S 2017>> FRONT
Porsche 991.1 Turbo >>2016 (FRONT)
Porsche 991.2 Turbo 2017>> (FRONT)
Porsche 991 GT3 2014-17 (FRONT)

For Cars with Ceramic brake PCCB (I450)
Porsche 991.1 C2 / C2S / C4 / C4S 2012-16 (FRONT)
Porsche 991.2 C2 / C2S / C4 / C4S 2017>> (FRONT)


Price shown is for each wire sensor.
Fits Left or Right
DISPLAYING 1 to 6 (of 6 products)
Also found on these pages
About Brake Pad Wear Sensors

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.

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