Arnott RH-3779 Suspension Ride Height Sensor - Rear Right

Arnott OES Ride Height Sensor for Lexus LS

Restore accurate suspension height feedback with the Arnott Suspension Ride Height Sensor - OES, part number RH-3779. This new, standard-grade sensor measures chassis-to-road distance and sends the signal the ECU uses to adjust air suspension height on the vehicle.

Compatible with 2007-2017 Lexus LS460, rear right, and 2008-2016 Lexus LS600h, rear right, this sensor is a direct-fit service part for air suspension systems that rely on precise ride-height input. Arnott RH-3779 is built with a black connector, rectangular connector shape, male connector and terminal design, and 3 blade terminals.

Key Features

• Suspension Ride Height Sensor - OES for air suspension height control
• Fits 2007-2017 Lexus LS460, rear right
• Fits 2008-2016 Lexus LS600h, rear right
• New, standard-grade replacement sensor
• Black rectangular connector with 1 male connector and 3 blade terminals
• Direct OE-style service part for vehicles using electronic ride-height feedback

How It Works

The Arnott OES ride height sensor monitors the distance between the chassis and the road surface, then relays that information to the ECU. The ECU responds by commanding the air suspension compressor to add or release air from the air struts as needed. On Lexus LS460 and Lexus LS600h models, accurate sensor input is essential for maintaining proper rear suspension height and consistent system operation. Part number RH-3779 is intended for the rear right position.

This part cross-references 8940750070 for the same application.

Common Problems This Sensor May Address

• Incorrect rear ride height readings
• Air suspension compressor cycling too often
• Vehicle sitting too high or too low at the rear right corner
• Suspension warning messages related to height control
• Sensor wear from road debris, water, salt, or impact damage

Installation Notes

Verify the connector style, terminal count, and rear right location before installation. Inspect the linkage, mounting points, and surrounding suspension components for corrosion or damage that could affect sensor readings. After installation, clear any stored suspension fault codes and confirm that the vehicle levels correctly through the full height range.

Quality Assurance

Arnott supplies OES suspension components for vehicles that depend on accurate electronic height control. RH-3779 is a new replacement sensor built for the specified Lexus LS applications and the demands of air suspension service.