Delphi SS21575 ABS Wheel Speed Sensor - Rear Left

Delphi ABS Wheel Speed Sensor SS21575

Delphi SS21575 is a rear left ABS wheel speed sensor for select Chevrolet Silverado 1500 and GMC Sierra 1500 applications. It is built as a standard replacement sensor with OE-level testing and calibration to support accurate wheel speed signal output.

Key Features

• ABS wheel speed sensor for the rear left position
• Standard replacement grade for direct-service applications
• 2035 mm wiring harness included
• 1 black rectangular connector with 2 male terminals
• Package contents: ABS wheel speed sensor and instruction sheet
• Delphi part number SS21575

Fitment

• Fits 2020-2024 Chevrolet Silverado 1500, rear left.
• Fits 2020-2024 GMC Sierra 1500, rear left.
• Fits 2022 Chevrolet Silverado 1500 LTD, rear left.
• Fits 2022 GMC Sierra 1500 Limited, rear left.

Detailed Description

This Delphi ABS wheel speed sensor is engineered for rear left wheel position service on 2020-2024 Chevrolet Silverado 1500 and GMC Sierra 1500 models, plus 2022 Silverado 1500 LTD and Sierra 1500 Limited applications. Delphi validates and calibrates its sensors to OE standards, helping deliver consistent wheel speed readings for the ABS system. Part number SS21575 is a practical OE-style replacement when the original sensor has failed or is sending an incorrect signal.

This part cross-references Standard Ignition ALS3189 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 fault codes related to the rear left sensor circuit
• Traction control or stability control concerns tied to wheel speed input
• Intermittent braking system alerts from sensor wiring or signal loss

Installation Notes and Tips

Confirm rear left placement before installation and compare the connector, terminal count, and harness length to the original part. The sensor uses a single black rectangular connector with two male terminals and includes the wiring harness. Mounting hardware is not included. Verify the vehicle application by year, make, model, and position before service.

Quality Assurance

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