Arnott RH-3873 Headlight Level Sensor - Front Right

Reliable Headlight Level Sensor for Cadillac, Chevrolet, and GMC

The Arnott RH-3873 headlight level sensor is designed to maintain optimal headlight alignment for select Cadillac, Chevrolet, and GMC models. This new sensor ensures accurate leveling to improve nighttime visibility and safety.

• Connector color: Black for easy identification
• Pin-type terminals with 3 male terminals for secure electrical connection
• Single oval-shaped female connector for precise fitment
• Standard grade type for consistent performance
• Compatible with multiple GM full-size SUVs and trucks

Detailed Product Description

The Arnott RH-3873 headlight level sensor features a black connector with a single oval female shape, designed to interface seamlessly with the vehicle’s wiring harness. It includes three male pin terminals, ensuring a reliable electrical connection that supports accurate headlight leveling. This standard grade sensor is manufactured new, providing dependable operation without the concerns associated with remanufactured parts. The sensor is engineered specifically for Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500 and Tahoe, as well as GMC Sierra 1500, Sierra, Yukon, and Yukon XL models, ensuring compatibility and proper function.

Common Applications and Issues Addressed

• Corrects headlight misalignment caused by faulty or worn sensors
• Restores automatic headlight leveling functionality
• Prevents uneven headlight beam patterns that reduce night driving visibility
• Eliminates dashboard warning lights related to headlight leveling system faults
• Supports vehicle safety inspections requiring functional headlight leveling

Installation Notes and Tips

Installation of the Arnott RH-3873 headlight level sensor requires no additional mounting hardware. Ensure the vehicle’s ignition is off before disconnecting the old sensor. Carefully match the oval-shaped black connector and pin terminals to the vehicle harness to avoid damage. Verify sensor alignment and system operation after installation to confirm proper function.

Quality Assurance and Warranty

Arnott manufactures the RH-3873 as a new, standard grade replacement part, meeting OEM specifications for fit and function. While specific warranty details are not provided here, Arnott parts typically come with a limited warranty covering defects in materials and workmanship. This sensor is built to provide reliable service for Cadillac Escalade, Chevrolet Silverado 1500, and GMC Sierra 1500 models equipped with headlight leveling systems.