Arnott RH-5254 Suspension Ride Height Sensor - Rear Left

Arnott Rear Left Ride Height Sensor RH-5254

Restore accurate suspension height feedback with the Arnott RH-5254 suspension ride height sensor. This new replacement sensor measures chassis-to-road distance and sends the signal the ECU uses to adjust air suspension output on Lexus IS250, IS350, IS F, GS350, GS450h, GS460, GS430, and GS300 applications.

Built for the rear left position, the RH-5254 helps maintain proper vehicle stance and consistent air suspension response on Lexus models that rely on precise ride height input.

Key Features

• New suspension ride height sensor for the rear left position
• Black connector with rectangle shape
• Male connector and male terminal design
• Standard grade construction for direct replacement use
• Single connector and single terminal configuration
• Cross-references OE part number 8940830130

Detailed Description

The Arnott RH-5254 is an aftermarket ride height sensor that reports suspension position to the ECU so the air suspension compressor can raise or lower the air struts as needed. On Lexus IS250, IS350, IS F, GS350, GS450h, GS460, GS430, and GS300 rear left applications, accurate sensor input is critical for maintaining correct ride height and stable suspension operation. This part number RH-5254 is a direct-fit replacement for vehicles using OE reference 8940830130.

Compatible With 2006-2015 Lexus IS250, rear left; 2006-2015 Lexus IS350, rear left; 2008-2014 Lexus IS F, rear left; 2007-2011 Lexus GS350, rear left; 2007-2011 Lexus GS450h, rear left; 2008-2011 Lexus GS460, rear left; 2006-2007 Lexus GS430, rear left; and 2006 Lexus GS300, rear left.

Common Problems This Part Can Address

• Incorrect vehicle ride height readings
• Air suspension compressor cycling at the wrong time
• Uneven rear suspension stance
• Warning lights related to suspension height sensing
• Sensor wear from road debris, water, or salt exposure

Installation Notes and Tips

Verify rear left fitment before installation and compare the connector style, terminal layout, and mounting points to the original sensor. Inspect the surrounding linkage and mounting area for corrosion, impact damage, or contamination that could affect sensor readings. After installation, confirm the suspension system recalibrates and responds correctly at the rear left corner.

Quality Assurance

Arnott supplies new aftermarket suspension components engineered for accurate replacement use in air suspension systems. The RH-5254 is built to replace worn or damaged ride height sensors and restore proper signal input to the ECU on supported Lexus applications.