Arnott RH-3954 Suspension Ride Height Sensor - Rear Left

Arnott RH-3954 Rear Left Ride Height Sensor

Arnott RH-3954 is a new suspension ride height sensor for vehicles equipped with air suspension height control. It measures chassis-to-road distance and sends that signal to the ECU so the system can adjust air pressure in the struts as needed. This rear left sensor is a direct-fit service part for 2015-2024 Ford Expedition and 2015-2024 Lincoln Navigator applications.

Key Features

• New standard-grade ride height sensor
• Rear left position for air suspension leveling systems
• Black connector with oval shape
• 3-pin male terminals with 1 female connector
• Built to replace worn or damaged suspension height sensors
• Fits 2015-2024 Ford Expedition, rear left
• Fits 2015-2024 Lincoln Navigator, rear left

Detailed Description

The Arnott RH-3954 suspension ride height sensor monitors vehicle stance and reports suspension position to the electronic control unit. That input allows the air suspension compressor to raise or lower the vehicle to maintain proper ride height. For Ford Expedition and Lincoln Navigator models with rear left sensor applications, RH-3954 provides a new replacement option when the original sensor has failed, drifted out of range, or been damaged by road debris, water, salt, or impact. This part cross-references Ford OE numbers FL1Z5A967B and FL1Z5A967D for the same application.

What It Helps Address

• Suspension warning lights related to ride height sensor faults
• Uneven vehicle stance or incorrect rear ride height
• Air suspension compressor cycling caused by bad sensor input
• Delayed or improper leveling response
• Sensor damage from corrosion, debris, or moisture intrusion

Installation Notes and Tips

Install RH-3954 at the rear left position only on listed Ford Expedition and Lincoln Navigator applications. Verify connector style, terminal layout, and mounting points before installation. After replacement, clear any stored suspension codes and confirm the vehicle levels correctly through a full height cycle. Because ride height sensors affect air suspension control, inspect related wiring, links, and brackets for wear before completing the repair.

Quality Assurance

Arnott supplies new aftermarket suspension components engineered for air suspension service. RH-3954 is a new part built to replace a worn ride height sensor and restore accurate height feedback to the vehicle’s suspension control system.