Standard Ignition PWS187 Disc Brake Pad Wear Sensor - Front Right

Brake Pad Wear Sensor for Porsche Ceramic Rotors

Standard Ignition PWS187 is a disc brake pad wear sensor for the front right brake caliper on select Porsche models with ceramic rotors. It provides direct wear monitoring for the brake pad system on the Porsche Boxster, Cayman, and 911 applications listed below.

Key Features

• Disc brake pad wear sensor for brake system monitoring
• Mounts at the brake caliper
• Male connector with oval shape
• 12-inch harness length for routing at the front right corner
• Female bullet terminals with 2-terminal design
• Direct replacement for OE part number 99761267900
• Standard Ignition PWS187 application-specific fitment

Detailed Description

Standard Ignition PWS187 is built for vehicles that use a brake pad wear indicator at the caliper. This sensor is listed for 2005-2010 Porsche Boxster, front right, w/ ceramic rotors; 2006-2010 Porsche Cayman, front right, w/ ceramic rotors; and 2005-2008 Porsche 911, front right, w/ ceramic rotors. If you are replacing a worn or damaged Porsche brake pad wear sensor, PWS187 matches the OE-style configuration for these front right ceramic rotor applications.

This part cross-references OE part number 99761267900 for the same application. Standard Ignition PWS187 is a focused replacement for Porsche Boxster, Cayman, and 911 brake wear monitoring systems where the sensor mounts at the brake caliper and uses the specified connector and terminal layout.

Common Issues This Part May Address

• Brake pad wear warning light staying on after pad service
• Damaged sensor wiring at the front right brake caliper
• Broken connector or terminal connection at the wear sensor
• Incorrect brake pad wear signal on ceramic rotor-equipped Porsche models
• Need for a direct replacement after sensor abrasion or heat damage

Installation Notes and Tips

Install PWS187 at the front right brake caliper and route the harness to match the original sensor path. Confirm connector style, terminal layout, and ceramic rotor fitment before installation. For Porsche Boxster, Cayman, and 911 models, verify the vehicle uses the listed front right ceramic rotor application before replacing the sensor.

Quality Assurance

Standard Ignition supplies application-specific electrical and sensor components for OE-style service replacement. PWS187 is listed against the OE reference 99761267900 for the confirmed Porsche fitments shown above.