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Standard Ignition ALS537 ABS Wheel Speed Sensor - Front
Reliable ABS Wheel Speed Sensor for Audi A4 and S4 Models
The Standard Ignition ALS537 ABS Wheel Speed Sensor is designed to provide accurate wheel speed data for Audi A4, A4 Quattro, and S4 vehicles. Engineered to meet OEM specifications, this sensor ensures proper ABS function and vehicle stability.
- Terminal Quantity: 6 for comprehensive connectivity
- Male connector with female terminals for secure electrical connection
- Two rectangular-shaped connectors for precise fitment
- 41-inch (1041.4 mm) harness length for flexible installation
- Single bolt hole mounting at the wheel location for easy replacement
- Blade and pin terminal types for reliable signal transmission
Detailed Product Description
The Standard Ignition ALS537 ABS Wheel Speed Sensor is specifically designed for Audi A4, A4 Quattro, and S4 models, providing accurate and consistent wheel speed readings essential for the anti-lock braking system. Featuring a 6-terminal configuration with male connectors and female terminals, this sensor ensures a secure and stable electrical connection. The rectangular connector shape and dual connector quantity facilitate proper alignment and fitment during installation. With a harness length of 41 inches (1041.4 mm), the sensor offers sufficient reach for various wheel mounting positions. The single bolt hole mounting design simplifies the replacement process, while the blade and pin terminal types guarantee reliable signal integrity under demanding driving conditions.
Common Applications and Problem Resolution
- Restores ABS functionality by providing accurate wheel speed data
- Eliminates ABS warning lights caused by faulty sensors
- Improves vehicle stability and braking performance
- Prevents erratic ABS activation or failure
- Addresses wheel speed sensor circuit faults in Audi A4 and S4 models
Installation Notes and Tips
When installing the Standard Ignition ALS537 sensor, ensure the connector terminals are clean and free of corrosion for optimal electrical contact. Verify the harness length is sufficient to reach the wheel mounting location without tension. Use the single bolt hole to securely fasten the sensor, avoiding over-tightening which may damage the sensor housing. It is recommended to inspect the wheel hub and surrounding components for debris or damage before installation to ensure accurate sensor readings.
Quality Assurance and Warranty
Standard Ignition parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The ALS537 ABS Wheel Speed Sensor undergoes rigorous quality control testing to maintain consistent functionality. This part is backed by Standard Ignition's limited warranty, providing coverage against defects in material and workmanship under normal use.
| Brand | Standard Ignition |
| Part Number | ALS537 |
| Connector Gender | Male; Male |
| Connector Shape | Rectangular |
| Harness Length - inches | 41 |
| Harness Length - mm | 1041.4 |
| Mounting Location | Wheel |
| Number of Bolt Holes | 1 |
| Terminal Gender | Female |
| Terminal Type | Blade; Pin |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2004 | Audi | A4 | Front | w/o Self Leveling Headlights |
| 2004 | Audi | A4 Quattro | Front | w/o Self Leveling Headlights |
| 2003 | Audi | A4 | Front | |
| 2003 | Audi | A4 Quattro | Front | |
| 2002 | Audi | A4 | Front | |
| 2002 | Audi | A4 Quattro | Front | |
| 2002 | Audi | S4 | Front |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.