Standard Ignition ALS448 ABS Wheel Speed Sensor - Front

Reliable ABS Wheel Speed Sensor for Audi Models

The Standard Ignition ALS448 ABS Wheel Speed Sensor is engineered to provide accurate wheel speed data for Audi vehicles including the A4, A4 Quattro, RS4, and S4. Designed with precise specifications, this sensor ensures proper ABS function and vehicle stability.

• Terminal Quantity: 6 for comprehensive connectivity
• Connector Gender: Male with 2 rectangular connectors
• Terminal Gender: Female with pin-type terminals
• Harness Length: 40 inches (1016 mm) for flexible installation
• Mounting Location: Wheel with 1 bolt hole for secure fitment

Detailed Product Description

The ALS448 ABS Wheel Speed Sensor from Standard Ignition is designed specifically for select Audi models such as the A4, A4 Quattro, RS4, and S4. Featuring a 6-terminal configuration and male connector gender, this sensor uses two rectangular connectors to ensure a stable electrical connection. The female pin-type terminals provide reliable signal transmission. With a harness length of 40 inches (1016 mm), the sensor offers sufficient reach for installation at the wheel mounting location, secured by a single bolt hole. This sensor plays a critical role in monitoring wheel speed to support the ABS system and traction control functions.

Common Applications and Issues Addressed

• Restores accurate wheel speed readings for ABS and traction control systems
• Resolves ABS warning lights caused by faulty or damaged sensors
• Eliminates erratic braking behavior due to sensor signal loss
• Prevents wheel lockup by providing real-time speed data
• Improves vehicle stability and safety during braking

Installation Notes and Tips

• Ensure the mounting location on the wheel is clean and free of debris before installation
• Verify connector orientation matches the male and female terminal configuration
• Secure the sensor with the single bolt hole to prevent movement or damage
• Check the harness length to confirm it reaches the connection point without tension
• Test the ABS system after installation to confirm proper sensor operation

Quality Assurance and Warranty

Standard Ignition manufactures the ALS448 ABS Wheel Speed Sensor to meet OEM specifications for fit, form, and function. Each sensor undergoes rigorous testing to ensure durability and reliable performance. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship to provide confidence in your replacement part.