Standard Ignition ALS438 ABS Wheel Speed Sensor - Rear

Reliable ABS Wheel Speed Sensor for BMW Models

The Standard Ignition ALS438 ABS Wheel Speed Sensor is designed to provide accurate wheel speed data for BMW vehicles including the 320i, 325Ci, 325i, 330Ci, 330i, and M3 models. This sensor ensures proper ABS function and vehicle stability by delivering precise signals to the braking system.

• Compatible with BMW 320i, 325Ci, 325i, 330Ci, 330i, and M3
• Part number ALS438 for easy identification
• 44.5-inch (1130 mm) wiring harness included for flexible installation
• Female round connector with one terminal and male pin terminals
• Bolt mount design with one bolt hole for secure attachment at the wheel
• Does not include mounting hardware or dust shield

Product Features and Specifications

The ALS438 ABS Wheel Speed Sensor from Standard Ignition features a 44.5-inch wiring harness that allows for convenient routing and connection within the wheel assembly. It includes a single female round connector with two terminals and male pin terminals, ensuring compatibility with the vehicle’s existing wiring harness. The sensor mounts directly to the wheel using a bolt mount with one bolt hole, providing a secure and stable fit. Note that mounting hardware and dust shield are not included with this sensor.

Purpose and Common Applications

This ABS wheel speed sensor is essential for monitoring wheel rotation speed and transmitting this data to the vehicle’s anti-lock braking system. It helps maintain vehicle control and braking efficiency under various driving conditions.

• Resolves ABS warning light issues related to faulty wheel speed sensors
• Corrects erratic or inaccurate wheel speed readings
• Improves ABS system responsiveness and vehicle stability
• Prevents potential brake system malfunctions caused by sensor failure
• Supports proper functioning of traction control and stability control systems

Installation Notes and Tips

Installation requires removal of the wheel and access to the sensor mounting location. The bolt mount design with a single bolt hole simplifies securing the sensor in place. Ensure the wiring harness is routed carefully to avoid damage or interference with moving parts. Since mounting hardware is not included, use the original bolt or an appropriate replacement. Verify connector compatibility before installation to ensure a proper electrical connection.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The ALS438 ABS Wheel Speed Sensor undergoes rigorous testing to ensure reliable performance and durability. Warranty coverage details should be confirmed with the product documentation or supplier.