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Arnott RH-5255 Headlight Level Sensor - Rear Left
| Brand | Arnott RH-5255 |
|---|---|
| Position | Rear Left |
| Connector Color | Black |
| Terminal Type | Pin |
| Grade Type | Standard |
| Connector Quantity | 1 |
| Connector Shape | Rectangle |
| Terminal Quantity | 1 |
| Connector Gender | Male |
| Terminal Gender | Male |
| Mounting Hardware Included | No |
| New Or Remanufactured | New |
| Fits | Lexus · 14 vehicles |
Ride height sensor. Measures chassis distance to help the suspension maintain proper leveling.
Standard-grade design. New sensor with a single rectangular connector for straightforward replacement.
Built to replace a worn sensor before it can affect the air suspension system.
Cross-references 8940842010 for the same application. See all 1.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Arnott RH-5255 Rear Left Headlight Level Sensor
Arnott RH-5255 is a new rear left headlight level sensor for Lexus NX applications with air suspension leveling control. It measures chassis-to-road distance and sends position data to the ECU so the system can adjust ride height as needed.
- New electronic ride height sensor for leveling control
- Black connector color with rectangular male connector
- Pin terminal design, standard grade type
- Single connector and single terminal configuration
- Rear left position for select Lexus NX models
- Cross-reference part number: 8940842010
How This Sensor Works
This Arnott headlight level sensor helps the vehicle monitor suspension position and maintain proper body height for the air suspension system. By reporting distance changes to the ECU, it supports compressor and air strut adjustments that keep the vehicle level. The RH-5255 is used on 2015-2021 Lexus NX200t, 2015-2021 Lexus NX300h, and 2018-2021 Lexus NX300 in the rear left position.
Common Problems It Can Address
- Incorrect ride height readings from a worn sensor
- Uneven vehicle stance caused by sensor failure
- Air suspension compressor cycling from bad position data
- Warning lights related to suspension leveling faults
- Damage from road debris, water, salt, or impact exposure
Installation Notes
Verify rear left fitment before installation and compare the connector shape, terminal style, and mounting points to the original sensor. Inspect the linkage and surrounding suspension components for corrosion or damage before replacing the sensor. After installation, clear any stored fault codes and confirm the leveling system responds correctly.
Quality Assurance
Arnott supplies this replacement sensor as a new part built for the specified Lexus NX fitments. RH-5255 is engineered for direct replacement use in the rear left suspension leveling position on the listed vehicles.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2021 | Lexus | NX300 | Rear Left | — |
| 2021 | Lexus | NX300h | Rear Left | — |
| 2020 | Lexus | NX300 | Rear Left | — |
| 2020 | Lexus | NX300h | Rear Left | — |
| 2019 | Lexus | NX300 | Rear Left | — |
| 2019 | Lexus | NX300h | Rear Left | — |
| 2018 | Lexus | NX300 | Rear Left | — |
| 2018 | Lexus | NX300h | Rear Left | — |
| 2017 | Lexus | NX200t | Rear Left | — |
| 2017 | Lexus | NX300h | Rear Left | — |
| 2016 | Lexus | NX200t | Rear Left | — |
| 2016 | Lexus | NX300h | Rear Left | — |
| 2015 | Lexus | NX200t | Rear Left | — |
| 2015 | Lexus | NX300h | Rear Left | — |
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