Delphi SS21308 ABS Wheel Speed Sensor - Rear or Rear Right

Delphi ABS Wheel Speed Sensor SS21308

Delphi SS21308 is an ABS wheel speed sensor built for rear axle applications on select Mercedes-Benz models. It uses a black oval connector with 2 male terminals and is supplied as the sensor and instruction sheet only.

Key Features

• ABS wheel speed sensor for rear, rear left, and rear right positions, depending on vehicle application
• Black oval connector with 1 connector and 2 male pin terminals
• No mounting hardware included
• No wiring harness included
• OE-calibrated and tested to OE standards for accurate wheel speed readings
• Delphi part number SS21308

Detailed Description

Delphi SS21308 is an ABS wheel speed sensor designed for vehicles that rely on precise wheel speed input for anti-lock braking and stability system operation. Delphi validates and calibrates its sensors to OE standards, helping maintain accurate signal output and consistent system performance. This part cross-references Standard Ignition ALS3479 for the same application. Compatible with select Mercedes-Benz EQB, CLA, GLA, GLB, A220, A250, A35 AMG, and CLA45 AMG applications, this sensor supports rear-position fitments listed by vehicle.

What It Helps Address

• ABS warning light triggered by an erratic wheel speed signal
• Traction control or stability control faults related to wheel speed input
• Intermittent braking system fault codes from a failing rear sensor
• Loss of accurate wheel speed data at the rear axle
• Sensor signal issues on Mercedes-Benz rear right or rear position applications

Installation Notes and Tips

Verify the exact rear position for your vehicle before ordering, since SS21308 is listed for rear, rear left, and rear right applications depending on model. Confirm connector shape, terminal count, and OE interchange before installation. Inspect the tone ring, wiring path, and connector condition during replacement to avoid repeat faults. Fits 2024 Mercedes-Benz EQB 250+, rear; Fits 2024 Mercedes-Benz EQB 300, rear; Fits 2024 Mercedes-Benz EQB 350, rear; Fits 2020-2023 Mercedes-Benz CLA250, rear right; Fits 2020-2023 Mercedes-Benz CLA35 AMG, rear right; Fits 2020-2023 Mercedes-Benz CLA45 AMG, rear right; Fits 2021-2023 Mercedes-Benz GLA250, rear; Fits 2021-2023 Mercedes-Benz GLA35 AMG, rear; Fits 2021-2023 Mercedes-Benz GLA45 AMG, rear; Fits 2020-2023 Mercedes-Benz GLB250, rear right; Fits 2021-2023 Mercedes-Benz GLB35 AMG, rear; Fits 2020-2022 Mercedes-Benz A220, rear right; Fits 2020-2021 Mercedes-Benz A35 AMG, rear right; Fits 2019 Mercedes-Benz A220, rear; Fits 2019 Mercedes-Benz A250, rear.

Quality Assurance

Delphi backs its sensor portfolio with OE development and product validation methods. SS21308 is tested and calibrated to OE standards to support accurate readings and reduce comebacks.