Delphi SS20004 ABS Wheel Speed Sensor - Front Left or Front Right

ABS Wheel Speed Sensor for Audi and Volkswagen

The Delphi SS20004 ABS wheel speed sensor is built for front axle applications on select Audi A4, Audi A4 Quattro, and Volkswagen Passat models. It uses a square female connector, blade terminals, and an included wiring harness to match the original-style electrical layout on covered vehicles.

With OE-focused engineering informed by Delphi’s long history supplying automakers, this sensor is a direct-fit replacement for front left and front right positions where listed in the application data.

Key Features

• ABS wheel speed sensor for front left and front right positions
• Square connector with 1 female connector and 2 male blade terminals
• Wiring harness included for the specified applications
• Package contents: ABS wheel speed sensor and instruction sheet
• Delphi part number SS20004
• Cross-reference: Beck/Arnley 084-4041

Detailed Description

Delphi SS20004 is an ABS wheel speed sensor designed for vehicles that use a built-in wiring harness at the front wheel position. It is listed for 1996-2000 Audi A4, 1996-1999 Audi A4 Quattro, and 1998-1999 Volkswagen Passat applications, with fitment varying by side. For the exact position on your vehicle, refer to the application tab before ordering. This part number, SS20004, is a practical OE-style replacement when the original sensor connector, harness routing, or signal output has worn or failed.

Delphi’s OE heritage is reflected in the sensor’s connector style, terminal layout, and application-specific fitment. If you are searching for a front wheel ABS sensor for Audi A4 Quattro or a front ABS wheel speed sensor for Volkswagen Passat, this part is built around those vehicle-specific requirements.

What It Helps Address

• ABS warning light caused by a failed front wheel speed sensor
• Intermittent wheel speed signal loss at the front axle
• Brake system fault codes related to wheel speed input
• Traction control or stability system issues tied to ABS data
• Connector or harness damage at the wheel-end sensor location

Installation Notes and Tips

Confirm the front left or front right position against the vehicle application before installation. Inspect the connector shape, terminal count, and harness routing to match the original sensor configuration. Clean the mounting area and wheel-end tone ring or encoder path before fitting the new sensor, and verify the harness is secured away from moving suspension components.

Quality Assurance

Delphi builds aftermarket parts using OE experience gained from supplying major automakers, and that OE knowledge is carried into this ABS wheel speed sensor design. The included instruction sheet supports correct installation and application matching for covered Audi and Volkswagen vehicles.