Delphi SS20866 ABS Wheel Speed Sensor - Front or Front Right

Delphi ABS Wheel Speed Sensor SS20866

Delphi SS20866 is an ABS wheel speed sensor built for front axle applications on select Chevrolet, GMC, and Hummer vehicles. It uses OE-standard testing and calibration to deliver accurate wheel speed readings for the anti-lock brake system.

Key Features

• ABS wheel speed sensor for front and front right positions
• 2-terminal blade connection with 1 oval male connector
• Sensor length: 27.17
• Package contents: ABS wheel speed sensor and instruction sheet
• OE-developed and validated to support accurate signal output
• Cross-references Standard Ignition ALS483 and ALS3077 for the same application

Product Details

This Delphi ABS wheel speed sensor, part number SS20866, is engineered for vehicles that rely on precise wheel speed data for ABS operation. It is listed for front placement on 2001-2006 Chevrolet Silverado 2500 HD, 2001-2006 Chevrolet Silverado 3500, 2001-2006 GMC Sierra 2500 HD, 2001-2006 GMC Sierra 3500, 2004-2007 Hummer H2, and other select Chevrolet Silverado, GMC Sierra, Avalanche, Suburban, Yukon XL, Express, and Savana applications. For position-specific use, verify the application listing for your vehicle before ordering.

Delphi’s sensor portfolio is developed with OE validation methods and calibrated to OE standards, helping maintain accurate readings for the brake control system. This supports consistent ABS performance on vehicles such as Chevrolet Silverado 1500 HD, GMC Sierra 1500 HD, and Chevrolet/GMC heavy-duty truck platforms.

What It Helps Address

• ABS warning light caused by a failed front wheel speed sensor
• Erratic or missing wheel speed signal input
• ABS activation concerns related to sensor signal loss
• Brake system fault codes tied to front sensor performance
• Intermittent anti-lock brake operation on Chevrolet Silverado and GMC Sierra models

Installation Notes

• Confirm the correct position before installation: front or front right, depending on the vehicle application.
• Match the connector style, terminal count, and sensor length to the original part.
• Inspect the tone ring, hub area, and wiring harness for damage before replacing the sensor.
• Clear ABS fault codes and verify proper operation after installation.

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 and reduced comebacks.