HomeBrake > SensorsStandard Ignition ALS537 ABS Wheel Speed Sensor - Front
Part #: ALS537

Standard Ignition ALS537 ABS Wheel Speed Sensor - Front

Front
⚙️ 7 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$42.21Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi, A4, A4 Quattro, and S4
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

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.

BrandStandard Ignition
Part NumberALS537
Connector GenderMale; Male
Connector ShapeRectangular
Harness Length - inches41
Harness Length - mm1041.4
Mounting LocationWheel
Number of Bolt Holes1
Terminal GenderFemale
Terminal TypeBlade; Pin

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
2004AudiA4Frontw/o Self Leveling Headlights
2004AudiA4 QuattroFrontw/o Self Leveling Headlights
2003AudiA4Front
2003AudiA4 QuattroFront
2002AudiA4Front
2002AudiA4 QuattroFront
2002AudiS4Front

* 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:

012806181084-40332ABS00105312095S104587176972-52988E0927803AABS647ABSD30067ARA3223SS20037V10-72-1080

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