Replacement RF31080100 Rear Left ABS Wheel Speed Sensor AWD Axle Mounted

The Replacement RF31080100 is a rear left (driver side) ABS wheel speed sensor designed as a direct OEM-quality replacement for All-Wheel Drive (AWD) applications. This axle-mounted sensor replaces Ford OEM part number AE5Z2C182D (also cross-references 7E5Z2C182B and ALS1743).

Key Features:

• Direct-fit replacement — engineered to match OEM connector, mounting points, and dimensions for a hassle-free installation
• AWD-specific design — axle-mounted configuration built exclusively for All-Wheel Drive variants; not compatible with Front-Wheel Drive models
• Rear left (driver side) positioning for precise installation
• 2-pin connector for plug-and-play compatibility with the factory wiring harness
• Monitors individual wheel rotation speed and transmits real-time data to the ABS control module
• Helps prevent brake lock-up during emergency stops and maintains traction control system accuracy
• Restores proper ABS and traction control warning light function when a faulty sensor is the cause

OEM & Cross-Reference Part Numbers:

• Ford OEM: AE5Z2C182D, 7E5Z2C182B
• Aftermarket: ALS1743, 5S8629, 5S12318, AE5C2C187BA

This sensor is a critical safety component within the Anti-lock Braking System (ABS). A failing rear wheel speed sensor can trigger an illuminated ABS warning light, reduce braking performance, and compromise traction control — making timely replacement essential for safe vehicle operation.