Standard Ignition ALS447 ABS Wheel Speed Sensor - Front

Overview of Standard Ignition ABS Wheel Speed Sensor ALS447

The Standard Ignition ABS Wheel Speed Sensor ALS447 is designed specifically for select BMW models including the 320i, 323Ci, 323i, 323ti, 328Ci, 328i, and M3. This sensor plays a critical role in monitoring wheel speed to support your vehicle's anti-lock braking system.

• Terminal Quantity: 3
• Connector Gender: Female
• Terminal Gender: Male
• Connector Quantity: 1
• Connector Shape: Round
• Hardware Included: No
• Harness Length: 26 inches (660 mm)
• Mounting Location: Wheel
• Number of Bolt Holes: 1
• Terminal Type: Blade

Detailed Product Description

The ALS447 ABS Wheel Speed Sensor from Standard Ignition is engineered to provide accurate wheel speed data to the ABS control module. Featuring a 3-terminal design with male blade terminals and a female round connector, this sensor ensures reliable electrical connections. The 26-inch harness length offers sufficient reach for proper installation at the wheel mounting location. With a single bolt hole for secure attachment, this sensor is tailored for precise fitment on BMW 320i, 323Ci, 323i, 323ti, 328Ci, 328i, and M3 models. The absence of included hardware means installation requires reusing existing bolts or sourcing compatible fasteners.

Common Applications and Issues Addressed

• Restores accurate wheel speed signal for ABS functionality
• Resolves ABS warning light activation due to sensor faults
• Eliminates erratic braking behavior caused by faulty sensor data
• Prevents traction control system malfunctions linked to wheel speed input
• Supports stable vehicle control during braking and acceleration

Installation Notes and Tips

• Verify compatibility with your BMW model before installation
• Ensure the mounting location on the wheel is clean and free of debris
• Use appropriate tools to avoid damaging the blade terminals or connector
• Check the harness length to confirm it reaches the ABS module without tension
• Retain or replace mounting hardware as needed since none is included

Quality Assurance and Warranty

Standard Ignition manufactures the ALS447 sensor to meet OEM specifications for fit, form, and function. While hardware is not included, the sensor undergoes quality checks to ensure reliable performance. Warranty coverage details should be confirmed with the point of purchase or Standard Ignition directly.