Delphi SS21391 ABS Wheel Speed Sensor

The Delphi SS21391 is an ABS wheel speed sensor engineered to deliver precise wheel speed data to your vehicle's anti-lock braking system (ABS), traction control, and electronic stability control modules. As a direct OE replacement, this sensor is designed to match the original equipment fit, form, and function for a straightforward, no-hassle installation.

Key Features:

• OE-Quality Construction: Built to meet or exceed original equipment specifications for reliable, accurate performance
• Hall Effect / Magneto-Resistive Technology: Generates a digital square wave signal, changing only frequency — not amplitude — for improved accuracy especially at low speeds
• Digital Signal Output: Maximizes signal-to-noise ratio for consistent, dependable communication with the ECM/ABS module
• Contactless Design: Reduces wear and extends service life compared to traditional contact-based sensors
• Weather-Resistant Connector: Features weather pack connectors with plated pins for reliable performance in harsh conditions including moisture, salt, and road debris
• Direct-Fit Replacement: Like-for-like mounting, connector design, and wire length allow for quick installation straight from the box
• Rigorously Tested: Validated to OE standards to ensure accurate readings and reduce the likelihood of comebacks

The Delphi SS21391 wheel speed sensor is a safety-critical component that monitors wheel rotation speed to prevent brake lock-up and maintain vehicle stability. Choosing an OE-quality replacement ensures the full effectiveness of your ABS, traction control, and stability systems is preserved.