Arnott RH-5687 Headlight Level Sensor - Rear Left

Arnott RH-5687 Headlight Level Sensor

Arnott RH-5687 is a new headlight level sensor for rear left applications on select Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. It monitors chassis height so the vehicle’s control system can adjust suspension response and maintain proper leveling.

Key Features

• New standard-grade headlight level sensor
• Black connector with oval shape
• Male connector and male blade terminal
• 1 connector and 1 terminal design
• Direct replacement for rear left position
• Cross-references GM 84360740 for the same application

Detailed Description

This Arnott RH-5687 sensor measures the distance between the road surface and the chassis and sends that information to the ECU, which then commands the air suspension system as needed. On 2019-2021 Chevrolet Silverado 1500 and 2019-2021 GMC Sierra 1500 models, as well as 2022 Chevrolet Silverado 1500 LTD and 2022 GMC Sierra 1500 Limited models, the rear left sensor plays a direct role in maintaining correct vehicle leveling and suspension response. If you are replacing a worn Chevrolet Silverado 1500 rear left headlight level sensor or a GMC Sierra 1500 rear left ride height sensor, RH-5687 provides the correct fitment for these applications.

What It Helps Address

• Incorrect vehicle leveling from a failed rear left sensor
• Suspension warning behavior related to height signal loss
• Air suspension compressor cycling caused by inaccurate height input
• Damage from road debris, water, salt, or impact exposure
• Wear-related sensor failure on Silverado 1500 and Sierra 1500 models

Installation Notes and Tips

Verify rear left placement before installation and compare the connector style, terminal type, and connector shape to the original part. Confirm vehicle year, model, and trim designation carefully, especially on 2022 Silverado 1500 LTD and Sierra 1500 Limited applications. After installation, check system operation and ensure the sensor linkage moves freely without binding.

Quality Assurance

Arnott supplies this as a new replacement sensor built for standard service use in the listed applications. It is engineered for the vehicle’s leveling system and matches the OE cross-reference 84360740 for the same application.