Delphi SS21577 ABS Wheel Speed Sensor - Rear Right

Delphi Rear Right ABS Wheel Speed Sensor

The Delphi SS21577 ABS wheel speed sensor is a standard replacement for rear right applications on select Honda and Acura vehicles. It is built from OE-focused sensor development and validation practices to deliver accurate wheel speed readings for the ABS system.

• Rear right ABS wheel speed sensor
• Standard replacement grade
• Black rectangular 1-connector design
• 2-terminal male blade connection
• Wiring harness included with 735 mm length
• Package includes the ABS wheel speed sensor and instruction sheet

Fitment and Application

Compatible with rear right applications on 2019-2023 Honda Passport, 2017-2023 Honda Ridgeline, 2016-2022 Honda Pilot, and 2014-2016 Acura MDX. The Delphi SS21577 is a direct-fit ABS wheel speed sensor for these listed vehicles and position-specific applications.

This part cross-references Standard Ignition ALS2871 for the same application.

How It Works

The ABS wheel speed sensor monitors wheel rotation and sends signal data to the anti-lock braking system. On vehicles such as the Honda Pilot, Honda Ridgeline, Honda Passport, and Acura MDX, accurate rear right wheel speed input helps the ABS module interpret wheel behavior during braking events.

Common Issues This Part May Resolve

• ABS warning light illuminated on the dash
• Wheel speed signal loss at the rear right position
• Erratic ABS operation during braking
• Fault codes related to the wheel speed sensor circuit
• Intermittent braking system communication from a damaged sensor or harness

Installation Notes

Verify rear right placement before installation and compare the connector, terminal style, and harness length to the original sensor. The connector is black, rectangular, male, with two male blade terminals. Mounting hardware is not included, so reuse existing hardware where applicable and follow the vehicle service procedure for routing and securing the harness.

Quality Assurance

Delphi tests and calibrates its sensors to OE standards and uses product validation methods developed for vehicle sensor applications. That OE-focused process supports accurate readings and helps reduce repeat repairs.