Delphi SS20038 ABS Wheel Speed Sensor - Rear Left or Rear Right

Delphi ABS Wheel Speed Sensor SS20038

Delphi SS20038 is an ABS wheel speed sensor for rear left and rear right applications on select Audi A4 and Audi A4 Quattro models. Built from Delphi’s OE experience, it is engineered with the connector, terminal layout, and wiring harness details needed for a direct replacement on the listed vehicles.

Key Features

• ABS wheel speed sensor for rear axle applications
• Fits rear left and rear right positions on listed Audi models
• Includes wiring harness for the sensor assembly
• Female rectangular connector with 1 connector and 2 male blade terminals
• Package contents: ABS wheel speed sensor and instruction sheet
• Delphi SS20038 is built from OE heritage and aftermarket application knowledge

Detailed Description

The Delphi SS20038 ABS wheel speed sensor monitors wheel rotation data for the anti-lock brake system on select Audi A4 and Audi A4 Quattro vehicles. Accurate wheel speed input helps the ABS control module evaluate rear wheel behavior during braking, making this sensor an important replacement when the original unit is damaged, corroded, or sending erratic signals. This part cross-references Standard Ignition ALS1415 for the same application.

Compatible With 1996-2001 Audi A4, rear left; 1996-2001 Audi A4, rear right; 1996 Audi A4 Quattro, rear left; 1996 Audi A4 Quattro, rear right; and 1997-2001 Audi A4, rear right. Delphi SS20038 is a direct-fit option for rear wheel ABS service on these Audi applications.

What It Helps Address

• ABS warning light caused by a failed rear wheel speed sensor
• Intermittent or inaccurate wheel speed signal readings
• Brake pulsation or ABS activation from sensor signal loss
• Corrosion or damage at the rear sensor connector or harness
• Diagnostic trouble codes related to rear wheel speed input

Installation Notes and Tips

Verify the vehicle position before installation, since this sensor is listed for rear left and rear right applications depending on the exact Audi model and year. Compare the connector shape, terminal count, and harness routing to the original part before removal. Clean the mounting area and inspect the tone ring, wiring path, and connector terminals for damage that could affect the new sensor’s signal.

Quality Assurance

Delphi draws on more than 100 years of OE experience and supplier knowledge used by major automakers. That OE background is reflected in the design and application details of Delphi SS20038, helping support consistent fit and function on the listed Audi A4 and Audi A4 Quattro vehicles.