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Brake pad wear sensor. Porsche 928 1978-79 › 92861231100
- Porsche 928 4.5L 1978-82
The OE Match Brake Pad Wear Sensor is a high-quality replacement braking system component designed to continuously monitor brake pad condition and provide a warning when the friction material reaches its minimum safe thickness. Manufactured to OE specifications for fit, function and reliability, this sensor helps ensure timely brake maintenance and supports safe vehicle operation.
Fits:
- Porsche 928 4.5L 1978-82
Installed directly into the brake pad assembly, the wear sensor forms part of the vehicle's brake monitoring system. When the brake pads wear down to a predetermined level, the sensor triggers the dashboard brake wear warning light, notifying the driver that brake pad replacement is required.
What This Product Does:
- Monitors brake pad wear throughout the service life of the pads.
- Activates the brake pad wear warning indicator when replacement is required.
- Helps prevent excessive brake pad wear.
- Protects brake discs from damage caused by worn friction material.
- Supports safe and effective braking performance.
- Assists with preventative brake maintenance.
- Provides early warning of brake service requirements.
Symptoms Of Wear Or Failure:
- Brake wear warning light remaining illuminated.
- Intermittent brake pad warning messages.
- False brake wear warnings despite healthy brake pads.
- No warning light when brake pads are excessively worn.
- Damaged, broken or corroded sensor wiring.
- Physical damage to the sensor body.
- Fault codes relating to the brake wear monitoring 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 heat, brake dust, moisture, road debris and vibration. In many applications, the sensor is designed to wear alongside the brake pads and should be replaced during brake servicing to ensure continued monitoring accuracy.
- A damaged or worn sensor can provide inaccurate brake wear information, potentially resulting in unnecessary warning lights or failure to alert the driver when brake pads have reached their service limit. If brake pads are allowed to wear excessively, braking performance can be reduced and costly damage to the brake discs may occur.
- Replacing a worn brake pad wear sensor restores accurate brake wear monitoring, ensures proper operation of the 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 maintenance and pad replacement.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92861231100
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
Fits:
Porsche 9YA Cayenne 2018>>
For cars with Rear brake discs 18", brake caliper painted Black (option code: 1KV)
Porsche 9YA Cayenne E-Hybrid 2018>>
For cars with Rear brake discs 18", brake caliper painted Green (option code: 1KR)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9Y0907253D
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
OE Match front brake pad wear sensor, suitability depends on the front brake specification, including option codes 1ZG and 1ZH.
Fits
Porsche 9YA Cayenne 2018>>
For cars with Front brake discs 18", brake caliper painted Black (option code: 1ZG)
Porsche 9YA Cayenne E-Hybrid 2018>>
For cars with Front brake discs 18", brake caliper painted Green (option code: 1ZH)
Check fitment for your specific vehicle (model, year, engine) before ordering.
What This Product Does
The sensor forms part of the brake-pad wear warning circuit, allowing the vehicle to indicate when pad renewal is due. It monitors wear rather than applying braking force and does not replace inspection of the pads, discs or associated wiring.
Functions
- Provides an input to the dashboard pad-wear warning system.
- Helps identify when brake-pad servicing is required.
- Replaces a worn or damaged front sensor in the specified applications.
Technical Details
- Product reference: 9Y0907253E.
- Brand: OE Match.
- Installation position: Front.
- Specified front brake disc application: 18".
- 1ZG application: Black-painted front caliper.
- 1ZH application: Green-painted front caliper.
Symptoms of Fault
- A pad-wear message remains after new pads have been fitted.
- The sensor lead has visible damage or fraying.
- Retaining clips are broken or the sensor is dislodged.
- Connections show corrosion or damaged terminals.
Why Replacement Matters
Plan to renew the sensor during pad replacement, particularly if it has worn through or suffered damage. A defective lead or connection can interfere with the wear-warning circuit, so inspect these alongside the pads before attributing a warning to the sensor alone. OE Match supplies replacement components developed around Porsche applications, with specification and fitment checks forming part of its component assessment.
FAQs
Does this fit every 9YA Cayenne?
No. Match the listed vehicle application and front brake option code; model designation alone is insufficient.
Should the sensor be changed with the pads?
Renewal is normally recommended during pad servicing. Replace a sensor that is worn, damaged or has defective wiring.
How many sensors are required?
Confirm the quantity for your vehicle's brake arrangement before planning the repair; no per-axle quantity is specified here.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9Y0907253E
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
- Porsche 9YA Cayenne GTS V8 4.0L Petrol (460Hp) 2020-23
- Porsche 9YA Cayenne Coupe GTS V8 4.0L Petrol (460Hp) 2021-23
- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo V8 4.0L Petrol (550Hp) 2019-23
- Porsche 9YA Cayenne Turbo S E-Hybrid V8 4.0L (550Hp) 2019-23
- Porsche 9YA Cayenne Coupe Turbo S E-Hybrid V8 4.0L (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo GT V8 4.0L (640Hp) 2021-23
OE Match front brake pad wear sensor for Porsche 9YA Cayenne models from 2018 onwards. This replacement front brake wear indicator helps monitor brake pad condition and alert the driver when the front brake pads are reaching their service limit. These should normally be replaced when replacing your brake pads.
Sold individually, There are 2 per axle.

Porsche 9YA Cayenne 2018>>
For cars with Front brake discs 18", brake caliper painted Black (option code: 1ZR), RoW
For cars with Front brake discs 18", brake caliper painted Black (option code: 1ZS), NAR
For cars with Front brake discs 18", brake caliper painted Green (option code: 1ZJ), RoW
For cars with Front brake discs 18", brake caliper painted Green (option code: 1ZB), NAR
Porsche 9YA Cayenne 2018>>
For cars with Front brake discs 19", brake caliper painted Silver (option code: 1LC / 1LI)
For cars with Front brake discs 19", brake caliper painted Green (option code: 1LL)
For cars with Front brake discs 19", brake caliper painted Red (option code: 1ZN), RoW
For cars with Front brake discs 19", brake caliper painted Red (option code: 1ZL), NAR
The brake pad wear sensor fits into the front brake pad assembly and monitors pad wear. When the pad material wears down to the sensor contact point, the system can trigger a dashboard warning, indicating that front brake pad replacement is required.
Functions
• Replaces the front brake pad wear sensor
• Monitors front brake pad wear condition
• Helps trigger the brake pad warning system
• Supports safe and timely brake pad replacement
• Used during front brake pad or front brake system service
• Replaces worn, damaged, broken, brittle, or previously triggered sensors
• OE Match replacement for Porsche 9YA Cayenne brake maintenance.
Why Replace This Part?
Brake pad wear sensors are designed to wear with the brake pads and may be damaged or triggered once the pads reach their wear limit. Sensors can also become brittle, corroded, broken, or damaged during brake servicing. Replacing the front sensor during brake pad replacement helps restore the warning system and prevents false or missing brake wear alerts.
When to Replace This Part
• Front brake pads are being replaced
• The brake pad wear warning light is illuminated
• The sensor has been triggered by worn front brake pads
• The sensor wire is damaged, broken, brittle, or corroded
• Front brake warning faults are being diagnosed
• The sensor was damaged during brake service
• The vehicle is undergoing Porsche Cayenne brake system maintenance.
Where it fits on the car
This sensor fits within the front brake pad wear monitoring system on Porsche 9YA Cayenne models. Exact position can vary depending on model year, front brake caliper type, and brake pad specification.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9Y0907253B
The product you are viewing cross references to these numbers
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
- Porsche 9YA Cayenne Turbo V8 4.0L Petrol (550Hp) 2020-23
- Porsche 9YA Cayenne Coupe Turbo V8 4.0L Petrol (550Hp) 2019-23
- Porsche 9YA Cayenne Turbo S E-Hybrid V8 4.0L (550Hp) 2019-23
- Porsche 9YA Cayenne Coupe Turbo S E-Hybrid V8 4.0L (550Hp) 2020-23
Front brake pad wear sensor by OE Match, compatibility depends on the fitted braking equipment and option codes below.
Fits
Porsche 9YA Cayenne 2018>> (FRONT)
For cars with front disc diameter 20", Brake caliper White (PSCB) (option code: 1ZI)
For cars with front disc diameter 20", Brake caliper painted Green (option code: 1ZU)
For cars with front disc diameter 21", Brake caliper painted Yellow (PCCB) (option code: 1ZV)
For cars with front disc diameter 21", Brake caliper painted Green (PCCB) (option code: 1ZW)
These applications remain subject to the brake specifications above. Check fitment for your specific vehicle (model, year, engine) before ordering.
What This Product Does
The sensor forms part of the vehicle's pad-wear warning circuit, helping indicate when brake pads require renewal. It is a monitoring component rather than a replacement for the pads or discs.
Functions
- Detects pad wear at the sensor position.
- Provides an input to the brake-wear warning system.
- Supports brake servicing and maintenance checks.
Technical Details
- Part reference: 9Y0907637B.
- Installation position: Front.
- Brand: OE Match.
- Specified brake option codes: 1ZI, 1ZU, 1ZV and 1ZW.
Symptoms of Fault
- A pad-wear warning remains after new pads have been fitted.
- Visible damage to the sensor cable.
- Broken retaining clips or an insecure sensor connection.
Why Replacement Matters
Sensor renewal normally accompanies pad replacement and may also be needed where wiring or the sensing element is damaged. A warning alone does not establish which component has failed; inspect pad condition, connections and cable routing before replacing parts.
FAQs
Is the model year enough to confirm compatibility?
No. Match the part reference and front brake option code as well as the vehicle details.
Should the sensor be renewed during a pad change?
Renewal is normally recommended alongside new pads, particularly if the existing sensor has worn or sustained damage.
Does this sensor replace worn braking components?
No. Pads, discs and associated hardware require separate inspection; changing the sensor does not correct their wear.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9Y0907637B
The product you are viewing cross references to these numbers
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