Walker 350-34406 Oxygen Sensor - Downstream Left or Downstream Right

Overview of Walker 350-34406 Oxygen Sensor for Lexus LS430 and SC430

The Walker 350-34406 oxygen sensor is designed specifically for Lexus LS430 and SC430 models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure and accurate installation.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Lexus LS430 and SC430
• Threaded mounting with 18.0 mm thread diameter
• 29.06-inch wiring harness length for optimal routing
• Radiused polygon male connector for reliable connection
• Wire gauge measurement of 20 for durability and signal integrity
• Overall length of 32.6 inches for proper fitment

Detailed Product Description

This Walker oxygen sensor (part number 350-34406) is engineered to meet the emission control requirements of Lexus LS430 and SC430 vehicles. The sensor type is heated, which allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 4-wire design supports both the sensor signal and heater circuit, ensuring accurate oxygen level readings and consistent performance.

The sensor features a threaded mounting type with an 18.0 mm thread diameter, allowing for secure installation in the exhaust system. The wiring harness length of 29.06 inches and overall length of 32.6 inches provide sufficient reach for proper placement without strain. The connector is a radiused polygon male type, designed to fit precisely with the vehicle’s wiring harness, minimizing the risk of connection issues.

Walker Products Aftermarket Line

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components tailored to specific vehicle applications. Walker Products Aftermarket parts are designed to meet or exceed OEM specifications, ensuring compatibility and performance for Lexus models such as the LS430 and SC430.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Lexus LS430 and SC430
• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Reduces emissions by providing accurate oxygen level data to the engine control unit
• Prevents check engine light triggers caused by sensor malfunctions
• Improves fuel economy by enabling precise fuel management

Installation Notes and Tips

When installing the Walker 350-34406 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle harness before installation. Properly route the wiring harness to prevent contact with hot exhaust components or moving parts.

Quality Assurance and Warranty

Walker oxygen sensors undergo rigorous testing to meet emission control standards and ensure durability. The 350-34406 sensor is manufactured to provide consistent performance in Lexus LS430 and SC430 vehicles. Warranty details are provided by Walker Products Aftermarket and typically cover defects in materials and workmanship under normal use.