Delphi SS21301 ABS Wheel Speed Sensor - Front

Delphi Front ABS Wheel Speed Sensor SS21301

Delphi SS21301 is a standard replacement front ABS wheel speed sensor built for accurate wheel speed signal input and OE-style fitment. It is engineered for Mercedes-Benz applications where consistent ABS data is critical for braking system performance and fault-code diagnosis.

Key Features

• Front ABS wheel speed sensor for Mercedes-Benz vehicles
• Standard replacement grade
• Black connector with oval shape
• 2-pin male terminal design
• Connector quantity: 1
• Package contents: ABS wheel speed sensor and instruction sheet
• No wiring harness included
• No mounting hardware included

Detailed Description

Delphi SS21301 is part of Delphi’s sensor lineup, which is developed with OE-focused validation and calibration methods. Each sensor is tested to OE standards to help deliver accurate wheel speed readings, supporting proper ABS operation and reducing repeat repairs caused by signal inconsistency. This front sensor is a direct-fit replacement for a range of Mercedes-Benz models, including CLA250, GLA250, GLE350, and Sprinter 2500 applications.

Compatible With 2020-2023 Mercedes-Benz CLA250, front; 2020-2023 Mercedes-Benz CLA35 AMG, front; 2020-2023 Mercedes-Benz CLA45 AMG, front; 2023 Mercedes-Benz EQB 250+, front; 2022-2023 Mercedes-Benz EQB 300, front; 2022-2023 Mercedes-Benz EQB 350, front; 2019-2023 Mercedes-Benz G550, front; 2019-2023 Mercedes-Benz G63 AMG, front; 2021-2023 Mercedes-Benz GLA250, front; 2021-2023 Mercedes-Benz GLA35 AMG, front; 2021-2023 Mercedes-Benz GLA45 AMG, front; 2020-2023 Mercedes-Benz GLB250, front; 2021-2023 Mercedes-Benz GLB35 AMG, front; 2020-2023 Mercedes-Benz GLE350, front; 2020-2023 Mercedes-Benz GLE450, front; 2021-2023 Mercedes-Benz GLE53 AMG, front; 2020-2023 Mercedes-Benz GLE580, front; 2021-2023 Mercedes-Benz GLE63 AMG S, front; 2021-2023 Mercedes-Benz Maybach GLS600, front; 2023 Mercedes-Benz Sprinter 2500, front; 2023 Mercedes-Benz Sprinter 3500XD, front; 2019-2022 Mercedes-Benz A220, front; 2020-2021 Mercedes-Benz A35 AMG, front.

This part cross-references Standard Ignition ALS3230 for the same application.

What It Helps Address

• ABS warning light triggered by a faulty front wheel speed sensor
• Erratic or missing wheel speed signal data
• Brake system fault codes related to front sensor input
• Intermittent ABS operation caused by sensor signal loss
• Repeat repairs from inaccurate sensor calibration

Installation Notes and Tips

Verify connector shape, terminal count, and front position before installation. Inspect the wheel hub area, tone ring, and wiring path for damage or contamination before replacing the sensor. Delphi SS21301 includes an instruction sheet; follow vehicle-specific service procedures and clear diagnostic codes after installation.

Quality Assurance

Delphi validates and calibrates its sensors to OE standards and tests them during development to support accurate readings. Delphi SS21301 is built as a standard replacement ABS wheel speed sensor for Mercedes-Benz front applications, including CLA250, GLE350, and Sprinter 2500 fitments.