Delphi SS21484 ABS Wheel Speed Sensor - Rear

Rear ABS Wheel Speed Sensor for OE-Style Replacement

The Delphi SS21484 is a rear ABS wheel speed sensor built for accurate wheel speed signal reporting in supported applications. It is a standard replacement part with a 976 mm wiring harness, 1 black square connector, and 2 male blade terminals for a direct-style service replacement.

Compatible with 2017-2020 Chevrolet Malibu rear and 2018-2019 Buick Regal Sportback rear, this Delphi ABS wheel speed sensor supports reliable brake system input for vehicles that depend on precise wheel speed data. The SS21484 is also cross-referenced to Standard Ignition ALS3442 for the same application.

Key Features

• Rear ABS wheel speed sensor
• Standard replacement grade
• 976 mm wiring harness included
• 1 black square connector with 2 male blade terminals
• Connector gender: male; terminal gender: male
• Package includes ABS wheel speed sensor and instruction sheet
• Delphi SS21484 part number for catalog and service lookup

Product Details

Delphi designs its sensor portfolio using OE development and validation methods, with testing and calibration performed to OE standards. That approach helps deliver accurate wheel speed readings for brake control systems and reduces the chance of repeat service issues. This rear ABS wheel speed sensor is a direct-fit style replacement for the listed Chevrolet Malibu and Buick Regal Sportback applications, making it a practical choice when restoring ABS signal integrity.

The Delphi SS21484 is specified with a square connector shape, black connector color, and blade terminals for a clean electrical interface. The harness is included, while mounting hardware is not included.

What This Sensor Helps Address

• ABS warning light caused by a failed rear wheel speed sensor
• Erratic or missing wheel speed signal at the rear axle
• Brake control system fault codes related to wheel speed input
• Intermittent ABS operation from damaged sensor wiring or connector issues
• Service replacement needs on 2017-2020 Chevrolet Malibu and 2018-2019 Buick Regal Sportback rear positions

Installation Notes and Tips

Verify rear position fitment before installation and compare the connector, terminal style, and harness length to the original part. Inspect the tone ring, hub area, and wiring path for damage or contamination before installing the new sensor. Clear ABS fault codes after installation and confirm proper wheel speed signal operation with a scan tool.

Quality Assurance

Delphi backs this sensor with OE-focused development and product validation methods. Each sensor is tested and calibrated to OE standards to support accurate readings and consistent service performance.