Arnott RH-3877 Suspension Ride Height Sensor - Rear Right

Arnott RH-3877 Ride Height Sensor

Arnott RH-3877 is a new suspension ride height sensor for air-suspension-equipped Land Rover applications. It measures chassis-to-road distance and sends that signal to the ECU so the system can adjust air pressure in the struts and maintain proper vehicle level.

Compatible With 2005-2009 Land Rover LR3, rear right, and 2006-2009 Land Rover Range Rover Sport, rear right. This part number, RH-3877, is built for direct replacement service on the rear right position.

Key Features

• New aftermarket ride height sensor from Arnott
• Black female connector with oval shape
• 3-pin terminal layout with male terminals
• Standard grade construction
• Mounting hardware included
• Direct replacement for rear right air suspension height sensing

How It Works

The ride height sensor reports suspension position to the ECU, which then commands the air suspension compressor to add or release air as needed. On the LR3 and Range Rover Sport, accurate sensor input is critical for maintaining correct ride height, stable handling, and proper suspension response. Arnott RH-3877 is a practical replacement when the original sensor is worn, damaged, or affected by road debris, water, salt, or impact.

This part cross-references URO LR020161 for the same application.

Common Problems It Can Help Solve

• Uneven vehicle stance or rear-right ride height issues
• Air suspension warning messages related to height sensing
• Incorrect compressor cycling caused by faulty sensor input
• Suspension response problems after debris, corrosion, or water intrusion
• Wear-related sensor failure on Land Rover LR3 and Range Rover Sport models

Installation Notes

Verify rear right fitment before ordering and compare the connector style, terminal count, and mounting points to the original sensor. After installation, inspect the linkage and surrounding suspension components for damage or corrosion that could affect sensor readings. For best results, clear any stored suspension fault codes and confirm the vehicle levels correctly after the repair.

Quality Assurance

Arnott supplies aftermarket suspension components engineered for air-suspension service, and RH-3877 is a new replacement part built for the specified Land Rover applications.