Delphi SS20556 ABS Wheel Speed Sensor - Rear

Delphi Rear ABS Wheel Speed Sensor

The Delphi SS20556 rear ABS wheel speed sensor is a standard replacement part for select BMW xDrive and xi models. It is built from OE-focused development and validation practices to deliver accurate wheel speed readings for the anti-lock brake system.

Compatible With 2006-2013 BMW 325xi, 328xi, 330xi, 328i xDrive, 335xi, and 335i xDrive rear applications, this sensor supports consistent signal output for ABS system operation. Delphi SS20556 is supplied with a wiring harness and uses a round female connector with two terminals.

Key Features

• Rear ABS wheel speed sensor for select BMW applications
• Delphi part number SS20556
• Standard replacement grade
• Wiring harness included; harness length 930
• 2-pin, round connector design
• Female connector with male terminals
• Package contents: ABS wheel speed sensor and instruction sheet
• Mounting hardware not included

Product Details

Delphi SS20556 is engineered for rear wheel speed monitoring on BMW 325xi, 328xi, 330xi, 328i xDrive, 335xi, and 335i xDrive models. Delphi validates its sensors to OE standards and calibrates them for accurate readings, helping maintain proper ABS system performance and reducing repeat repairs. If you are replacing a rear ABS sensor on a BMW 328i xDrive or BMW 335i xDrive, this part number provides a direct-fit service replacement for the listed vehicles.

This part cross-references Standard Ignition ALS1845 for the same application.

What It Helps Address

• ABS warning light caused by a failed rear wheel speed sensor
• Erratic or missing wheel speed signal data
• ABS system faults related to rear sensor circuit issues
• Brake control concerns tied to inaccurate wheel speed input
• Repeat repairs from an out-of-spec replacement sensor

Installation Notes

Verify the rear position and connector style before installation. Compare the original sensor, harness length, and terminal layout to the Delphi SS20556 before removal. Inspect the wheel hub area, tone ring, and wiring path for damage or corrosion, and route the harness to match the factory path on the BMW 328i xDrive, 328xi, 330xi, 335xi, and 335i xDrive applications.

Quality Assurance

Delphi sensors are developed and validated using OE-level methods and tested to OE standards for accurate signal output. The package includes the ABS wheel speed sensor and an instruction sheet.