Arnott RH-3859 Headlight Level Sensor - Rear

Brand Arnott RH-3859
Position Rear
Connector Color Black
Terminal Type Pin
Grade Type Standard
Connector Quantity 1
Connector Shape Rectangle
Terminal Quantity 3
Connector Gender Male
Terminal Gender Male
Mounting Hardware Included No
New Or Remanufactured New
Fits Land Rover · 10 vehicles

New sensor. Built to replace a worn ride height sensor and help protect the air suspension system.

Standard grade. A straightforward replacement with a single rectangular connector and 3-pin terminal.

Measures chassis distance to help the ECU adjust air suspension automatically.

Cross-references URO LR033257 for the same application. See all 1.

$90.75Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $90.75
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Free returns within 60 days if it doesn't fit when fitment is verified.

Rear Headlight Level Sensor for Land Rover

Arnott RH-3859 is a new rear headlight level sensor for select Land Rover air suspension applications. It measures chassis height changes and sends that information to the ECU so the system can adjust air pressure in the struts as needed.

Compatible With 2013-2017 Land Rover Range Rover, rear; 2014-2017 Land Rover Range Rover Sport, rear; and 2017 Land Rover Discovery, rear. This part number, RH-3859, is a direct-fit replacement for vehicles using a rear ride height sensor with a black rectangular 3-pin male connector.

Key Features

  • New electronic ride height sensor for rear suspension leveling
  • Black connector with rectangular shape
  • 3-terminal male connector design
  • Standard grade replacement part
  • Single connector configuration for straightforward identification
  • Cross-references URO LR033257 for the same application

How It Works

The sensor monitors the distance between the road and the vehicle chassis, then relays that signal to the ECU. On Land Rover Range Rover, Range Rover Sport, and Discovery models with air suspension, that input helps the system raise or lower the vehicle to maintain proper ride height and headlight leveling. Arnott RH-3859 is built as a new replacement for worn or damaged rear height sensors.

Common Problems This Part Can Address

  • Rear suspension sitting too high or too low
  • Headlights pointing upward or downward after ride height changes
  • Suspension warning messages related to height sensing
  • Erratic air suspension compressor cycling
  • Faults caused by water, salt, road debris, or impact damage

Installation Notes

Verify connector style, terminal count, and rear position before installation. Inspect the sensor linkage, mounting points, and nearby wiring for corrosion or damage, since a failed sensor can be caused by exposure at the wheel area. After replacement, clear any stored suspension codes and confirm that the vehicle levels correctly.

Quality Assurance

Arnott supplies aftermarket ride height sensors for air suspension systems, with replacement parts built to restore accurate chassis-height feedback to the ECU. RH-3859 is a new component for rear applications on Land Rover Range Rover, Range Rover Sport, and Discovery models.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2017Land RoverDiscoveryRear—
2017Land RoverRange RoverRear—
2017Land RoverRange Rover SportRear—
2016Land RoverRange RoverRear—
2016Land RoverRange Rover SportRear—
2015Land RoverRange RoverRear—
2015Land RoverRange Rover SportRear—
2014Land RoverRange RoverRear—
2014Land RoverRange Rover SportRear—
2013Land RoverRange RoverRear—
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
URO — LR033257