Brake Pad Wear Sensors
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![Brake pad wear sensor. Porsche Boxster 986 / 996 / 996TT / 997 - 99661236500, 99661236501 Brake pad wear sensor. Porsche Boxster 986 / 996 / 996TT / 997 - 99661236500, 99661236501](/uploads/products/22a64c60-4ba7-43aa-adfb-39ce3a2c91ef/99661236501-1_1.jpg?width=197)
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- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 997 Carrera 2 3.6L 2005>>
- Porsche 997 Carrera 4 3.6L 2005>>
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![fr fr](/uploads/images/car_logo/fr.gif)
Porsche 996 C2 / C4 / C4S Front & Rear Caliper
Porsche 996 Turbo Front & Rear Caliper
![front front](/uploads/images/car_logo/front.gif)
Porsche 986 Boxster 1997-2004 Front Caliper
![rear rear](/uploads/images/car_logo/rear.gif)
Porsche 997 C2 / C4 MKI Rear Caliper
Price shown is for each wire sensor.
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99661236501
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![Brake pad wear sensor. Porsche Boxster 986 / Boxster 987 / Cayman 987C - 98661236500, 98661236501 Brake pad wear sensor. Porsche Boxster 986 / Boxster 987 / Cayman 987C - 98661236500, 98661236501](/uploads/products/f354db4b-fb43-4992-8387-683b0ed1028c/98661236500_1SM.jpg?width=197)
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- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
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![rear rear](/uploads/images/car_logo/rear.gif)
Porsche 986 Boxster 1997-2004 Rear Caliper
Porsche 987 MKI Boxster S 3.2L 2005-08 Rear Caliper
Porsche 987 MKII Boxster S 3.4L 2009>> Rear Caliper
Porsche 987C MKI Cayman S 3.4L 2005-08 Rear Caliper
Porsche 987C MKII Cayman S 3.4L 2010>> Rear Caliper
Price shown is for each wire sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
98661236501
The product you are viewing cross references to these numbers
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![12 Month Warranty 12 Month Warranty](/images/lightbox-blank.gif?width=80&height=80)
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Brake Pad Wear Sensors
Brake pads are wearing constantly due to the friction and heat produced by the braking process. When the pad wears down to a predetermined level, the brake pad sensor within comes into contact with the metal brake disc and creates an electrical circuit. This in turn illuminates a warning light on the dash board which informs the driver that the brakes need replacing.