Carlson 19121 Disc Brake Pad Wear Sensor - Front

Brand Carlson 19121
Position Front
Fits Land Rover · 9 vehicles

Electric wear sensor. Alerts when brake pads wear down and need replacement.

Manufactured with quality materials for proper function and reliable performance.

$21.86Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Disc Brake Pad Wear Sensors are typically replaced in pairs, axle by axle.
Order total $21.86
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Carlson 19121 Brake Pad Wear Sensor

The Carlson 19121 disc brake pad wear sensor monitors pad condition and alerts the driver when brake pads have worn to the point that service is needed. Built with quality materials for proper function, it is a direct-fit brake sensor for select Land Rover front brake applications.

Key Features

  • Disc brake pad wear sensor for front brake systems
  • Quality-material construction for consistent electrical wear detection
  • Direct replacement for select Land Rover Discovery Sport and Range Rover Evoque models
  • Supports brake warning system operation when pads reach wear limit
  • Carlson part number 19121 for easy identification

Detailed Description

Compatible with 2015-2017 Land Rover Discovery Sport, front, and 2016-2017 Land Rover Range Rover Evoque, front, this wear sensor is used in brake systems that rely on an electrical signal to indicate pad wear. It is also listed for 2018-2019 Land Rover Discovery Sport, front, 325mm rotor; disc; D1838, and 2018-2019 Land Rover Range Rover Evoque, front, 325mm rotors; disc; D1838. Carlson 19121 is built to restore proper wear-sensor function when the original sensor becomes frayed or damaged from normal brake use.

This part cross-references no listed alternate part numbers in the provided data.

What It Helps Address

  • Brake pad wear warning light staying on or triggering incorrectly
  • Damaged, frayed, or broken pad wear sensor wiring
  • Loss of brake pad wear monitoring on the front axle
  • Service needs after brake pad replacement on equipped Land Rover models
  • Electrical wear-sensor faults related to front disc brake systems

Installation Notes and Tips

Verify rotor size and brake configuration before ordering, especially on 2018-2019 Discovery Sport and Range Rover Evoque applications with 325mm rotors and D1838 notes. Inspect the sensor routing and connector condition during brake service, and replace the sensor if the original lead is frayed or damaged. Confirm front-position fitment against the vehicle’s brake setup before installation.

Quality Assurance

Carlson manufactures its electric wear sensors with quality materials to support proper brake warning function and reliable operation in the intended application.

This part fits 9 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2019Land RoverDiscovery SportFront325mm Rotor; Disc; D1838
2019Land RoverRange Rover EvoqueFront325mm Rotors; Disc; D1838
2018Land RoverDiscovery SportFront325mm Rotor; Disc; D1838
2018Land RoverRange Rover EvoqueFront325mm Rotors; Disc; D1838
2017Land RoverDiscovery SportFrontFor Disc Brake Caliper Repair Kit compatibility, use with Disc Brake Bleeder screw D1838.
2017Land RoverRange Rover EvoqueFrontFor Disc Brake Caliper Repair Kit compatibility, use with Disc Brake Bleeder screw D1838.
2016Land RoverDiscovery SportFrontFor Disc Brake Caliper Repair Kit compatibility, use with Disc Brake Bleeder screw D1838.
2016Land RoverRange Rover EvoqueFrontFor Disc Brake Caliper Repair Kit compatibility, use with Disc Brake Bleeder screw D1838.
2015Land RoverDiscovery SportFrontFor Disc Brake Caliper Repair Kit compatibility, use with Disc Brake Bleeder screw D1838.