Delphi SS20859 ABS Wheel Speed Sensor - Rear

Delphi ABS Wheel Speed Sensor SS20859

Delphi SS20859 is an ABS wheel speed sensor built for rear axle applications on select Jeep and Dodge models. It uses a square female connector with blade terminals and mounts at the wheel hub for a direct replacement on vehicles that need accurate wheel speed input for the anti-lock brake system.

Built from Delphi’s OE heritage and aftermarket engineering experience, this ABS wheel speed sensor reflects the same application knowledge used in original equipment development. It is a practical choice for Jeep Wrangler, Jeep Wrangler JK, Jeep Liberty, and Dodge Nitro rear sensor service where the original sensor has failed or is producing erratic signals.

Key Features

• ABS wheel speed sensor for rear wheel hub mounting
• Square connector with 1 female connector and 2 male blade terminals
• No wiring harness included
• No mounting hardware included
• Package contents: ABS wheel speed sensor and instruction sheet
• Delphi part number SS20859

Application Details

This Delphi ABS wheel speed sensor SS20859 is compatible with rear-position applications on 2007-2017 Jeep Wrangler, 2018 Jeep Wrangler JK, 2008-2012 Jeep Liberty, and 2007-2011 Dodge Nitro. It cross-references Chrysler 5212 5003AD for the same application.

As a rear wheel speed sensor for Jeep Wrangler and Jeep Liberty brake system service, SS20859 helps restore the signal the ABS module uses to monitor wheel rotation. Accurate wheel speed data is important for stable anti-lock brake operation and traction-related system performance.

What It Helps Solve

• ABS warning light caused by a failed rear wheel speed sensor
• Intermittent or missing wheel speed signal at the hub
• Brake system fault codes related to rear sensor input
• Erratic ABS operation during braking events
• Loss of reliable wheel speed data on Jeep Wrangler, Jeep Liberty, or Dodge Nitro

Installation Notes

Verify rear-position fitment before installation and compare the connector, terminal style, and mounting location to the original sensor. The sensor mounts at the wheel hub and uses a square female connector with blade terminals, so matching the OE-style connection is important for proper fit.

Inspect the hub area, tone ring, and wiring path before installing the new sensor. Clean corrosion or debris from the mounting surface and confirm the harness routing is secure after replacement. Delphi SS20859 is a direct-fit style service part for the listed rear applications.

Quality Assurance

Delphi draws on more than 100 years of OE experience and supplier knowledge from work with major automakers. That OE background is built into this aftermarket ABS wheel speed sensor to support consistent fit and function in the listed rear applications.