Delphi SS21439 ABS Wheel Speed Sensor - Rear Left

Delphi Rear Left ABS Wheel Speed Sensor

Delphi SS21439 is a rear left ABS wheel speed sensor for select Chevrolet Colorado and GMC Canyon applications. It delivers OE-standard calibration and validated sensor output to support accurate wheel speed readings for the anti-lock brake system.

Key Features

• Part number: SS21439
• Rear left position
• 1 female square connector with 2 male terminals
• Wiring harness included
• Package contents: ABS wheel speed sensor and instruction sheet
• Length: 34.07 in.; wiring harness length: 29.25 in. (743 mm)
• Delphi sensor testing and calibration to OE standards

Fitment

• Fits 2015-2022 Chevrolet Colorado, rear left.
• Fits 2015-2022 GMC Canyon, rear left.

Detailed Description

This Delphi ABS wheel speed sensor is built for rear left placement on 2015-2022 Chevrolet Colorado and 2015-2022 GMC Canyon models. The SS21439 uses a square female connector, blade terminals, and an included wiring harness to match the listed application. Delphi validates and calibrates its sensors to OE standards, helping maintain accurate wheel speed signal output for the brake control system.

This part cross-references Standard Ignition ALS2868 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
• Traction control and stability system faults tied to wheel speed input
• Brake system diagnostic trouble codes related to the rear left sensor
• Intermittent ABS operation from sensor signal loss

Installation Notes

Verify rear left placement before installation. Compare the connector shape, terminal count, and harness length to the original sensor on the vehicle. Inspect the tone ring, wiring path, and mounting points for damage or corrosion before completing the repair.

Quality Assurance

Delphi backs this sensor with OE development and product validation methods, and each sensor is tested and calibrated to OE standards to support accurate readings and reduce comebacks.