Arnott RH-5257 Suspension Ride Height Sensor - Rear

Arnott Rear Ride Height Sensor RH-5257

Arnott RH-5257 is a rear suspension ride height sensor for vehicles with air suspension leveling systems. It measures chassis-to-road distance and sends that signal to the ECU so the compressor can adjust air pressure in the air struts as needed. This rear ride height sensor fits Subaru Crosstrek, XV, WRX, WRX STI, Impreza, XV Crosstrek, and Forester applications listed below.

Key Features

• Rear suspension ride height sensor for air suspension leveling systems
• Black connector with rectangle shape
• Male connector and male terminal design
• Standard grade replacement sensor
• New part with one connector and one terminal
• Arnott RH-5257 cross-references Subaru 84031FG000 for the same application

Detailed Description

The Arnott RH-5257 suspension ride height sensor provides the ECU with accurate suspension position data so the air suspension system can raise or lower the vehicle as required. On Subaru models such as the Crosstrek, XV, WRX, WRX STI, Impreza, XV Crosstrek, and Forester, a worn rear sensor can cause incorrect leveling behavior and place added strain on the air suspension compressor and related components. Arnott RH-5257 is a new, standard replacement built for rear-position applications.

Compatible With 2016-2023 Subaru Crosstrek, rear; 2018-2022 Subaru XV, rear; 2013-2016 Subaru XV, rear; 2015-2021 Subaru WRX, rear; 2015-2021 Subaru WRX STI, rear; 2012-2016 Subaru Impreza, rear; 2013-2015 Subaru XV Crosstrek, rear; and 2009-2013 Subaru Forester, rear.

What It Helps Fix

• Incorrect vehicle ride height readings
• Air suspension compressor cycling caused by faulty sensor input
• Uneven rear suspension leveling
• Warning lights or suspension faults related to height sensing
• Wear from road debris, water intrusion, salt exposure, or impact damage

Installation Notes and Tips

Verify the connector style, mounting location, and OE part number before installation. Inspect the surrounding linkage, wiring, and mounting points for corrosion or damage, since a failed sensor can be caused by exposure or impact. After replacement, confirm the rear suspension levels correctly and clear any stored suspension fault codes if required by the vehicle.

Quality Assurance

Arnott manufactures aftermarket suspension components with OE-style fitment and function in mind. RH-5257 is a new replacement part for rear ride height sensor applications on the Subaru models listed above.