Delphi SS21609 ABS Wheel Speed Sensor - Rear Left

Delphi Rear Left ABS Wheel Speed Sensor for Mazda CX-5

The Delphi SS21609 ABS wheel speed sensor provides OE-standard signal accuracy for rear left applications on the Mazda CX-5. Built for direct replacement use, it supports reliable wheel speed data for the ABS system and related stability functions.

Key Features

• Fits 2016-2023 Mazda CX-5, rear left
• OE-calibrated for accurate wheel speed readings
• Standard replacement grade for direct service use
• Includes wiring harness and instruction sheet
• White 2-connector design with rectangular male connectors
• 4-terminal blade connection layout
• Mounting hardware included
• Wiring harness length: 800

Detailed Description

Delphi SS21609 is an ABS wheel speed sensor for the rear left position on 2016-2023 Mazda CX-5 models. Delphi validates its sensors to OE standards, using development and calibration methods that help deliver consistent readings for the ABS control system. This part number, SS21609, is built as a standard replacement for vehicles that need dependable wheel speed input without changing the original system design.

This part cross-references Monroe Shocks & Struts (e.g., 5S15366, KA0K-43-7EYA) for the same application.

What It Helps Address

• ABS warning light caused by a failing rear wheel speed sensor
• Erratic or missing wheel speed signal at the rear left wheel
• Traction control or stability system faults tied to wheel speed input
• Brake system diagnostic trouble codes related to sensor performance
• Intermittent sensor readings from worn wiring or connector issues

Installation Notes and Tips

Verify rear left placement before installation on the Mazda CX-5. Inspect the connector, harness routing, and mounting points for corrosion, damage, or debris before connecting the new sensor. Confirm the sensor seats fully and the wiring follows the original path to reduce strain and signal interruption.

Quality Assurance

Delphi sensors are tested and calibrated to OE standards and validated through stringent development methods to support accurate readings and reduce comebacks. Part number SS21609 is backed by Delphi’s OE-focused sensor engineering for service replacement applications.