HomeBrake > SensorsStandard Ignition ALS859 ABS Wheel Speed Sensor - Front Left
Part #: ALS859

Standard Ignition ALS859 ABS Wheel Speed Sensor - Front Left

Front Left
1 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mazda, Protege
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Overview of Standard Ignition ALS859 ABS Wheel Speed Sensor

The Standard Ignition ALS859 ABS Wheel Speed Sensor is designed specifically for Mazda Protege models, providing reliable wheel speed data essential for your vehicle's anti-lock braking system. This sensor features a 26-inch harness and a durable square-shaped connector to ensure a secure and precise fit.

  • Compatible with Mazda Protege vehicles
  • ABS wheel speed sensor with 2-terminal blade type
  • Female connector with square shape and 1 connector quantity
  • 26-inch (660 mm) harness length for flexible installation
  • Mounts directly on the wheel with 2 bolt holes for secure attachment
  • Hardware not included

Detailed Product Description

The Standard Ignition ALS859 is an ABS wheel speed sensor engineered to monitor the rotational speed of the wheel on Mazda Protege models. It features a 2-terminal blade type connector with a female connector gender, designed to interface seamlessly with the vehicle’s wiring harness. The sensor’s square connector shape and single connector quantity simplify installation and ensure a stable electrical connection. With a 26-inch (660 mm) harness length, this sensor offers sufficient reach for proper routing and mounting at the wheel location. The sensor mounts securely using two bolt holes, providing a stable and accurate reading necessary for the ABS system to function correctly.

Common Applications and Issues Addressed

  • Restores accurate wheel speed data for ABS functionality
  • Resolves ABS warning light activation due to faulty sensor
  • Eliminates erratic braking behavior caused by sensor failure
  • Prevents loss of traction control related to wheel speed sensor errors
  • Corrects speedometer inaccuracies linked to wheel speed sensor issues

Installation Notes and Tips

  • Ensure the mounting location on the wheel is clean and free of debris before installation
  • Verify the connector gender and terminal type match the vehicle’s wiring harness
  • Route the 26-inch harness carefully to avoid contact with moving parts or heat sources
  • Use the two bolt holes to secure the sensor firmly in place
  • Double-check electrical connections for a secure fit to prevent intermittent faults

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The ALS859 ABS Wheel Speed Sensor undergoes rigorous quality control testing to maintain consistent functionality. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in materials and workmanship to provide confidence in your purchase.

BrandStandard Ignition
Part NumberALS859
Connector GenderFemale
Connector ShapeSquare
Harness Length - inches26
Harness Length - mm660
Mounting LocationWheel
Number of Bolt Holes2
Terminal GenderMale
Terminal TypeBlade

This part fits 1 vehicles. Search below:

YearMakeModelPositionNotes
1995MazdaProtegeFront Left

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

5314745S637172-571972433ABS969ABSC20693ARC2891BC1M4373XA

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.