Delphi SS20037 ABS Wheel Speed Sensor - Front Left or Front Right

Delphi ABS Wheel Speed Sensor for Audi A4 and S4

The Delphi SS20037 ABS wheel speed sensor is built for front axle applications on select 2002-2003 Audi A4 and A4 Quattro models, plus 2002 Audi S4 vehicles. It uses OE-based engineering from Delphi’s long history supplying original equipment to major automakers, with fitment focused on the front left and front right positions.

Key Features

• ABS wheel speed sensor for front left and front right positions
• Connector shape: oval
• Connector quantity: 1
• Connector gender: male
• Terminal type: pin
• Terminal quantity: 2
• Terminal gender: female
• Wiring harness included for easier replacement
• Package contents: ABS wheel speed sensor and instruction sheet
• Delphi SS20037 OE-style replacement for Audi brake sensor service

Detailed Description

Delphi SS20037 is an ABS wheel speed sensor engineered for front wheel applications on 2002-2003 Audi A4, 2002-2003 Audi A4 Quattro, and 2002 Audi S4 models. If you are searching for a front right ABS wheel speed sensor for Audi A4 Quattro or a front left wheel speed sensor for Audi S4, this part number provides the correct OE-focused replacement path. Delphi draws on OE heritage and supplier experience to deliver aftermarket parts built around original equipment knowledge, and the SS20037 reflects that approach in its connector design, terminal layout, and harness configuration.

This part cross-references Standard Ignition ALS537 for the same application.

What It Helps Address

• ABS warning light triggered by a failed front wheel speed sensor
• Erratic or missing wheel speed signal to the ABS system
• Brake control faults related to front axle sensor input
• Intermittent sensor connection at the wheel hub area
• Replacement needs after corrosion, wiring damage, or sensor wear

Installation Notes and Tips

Confirm the exact position before ordering: this Delphi SS20037 sensor is listed for front left and front right applications, and vehicle-specific placement should be verified against the application tab. Inspect the connector style, terminal count, and harness routing before installation to ensure the replacement matches the original sensor. For 2002-2003 Audi A4 and A4 Quattro, as well as 2002 Audi S4, clean the mounting area and check the tone ring or wheel bearing area for damage that could affect signal quality.

Quality Assurance

Delphi builds this ABS wheel speed sensor using OE experience gained from supplying major automakers, with design details intended to match original equipment requirements for the listed Audi applications. Part number SS20037 is supported by Delphi’s OE-focused engineering approach for brake sensor replacement.