Walker 350-34522 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker Oxygen Sensor for Lexus LS400 and SC400

The Walker 350-34522 oxygen sensor is designed specifically for Lexus LS400 and SC400 models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated oxygen sensor with 4 wires for precise readings
• Specific fit for Lexus LS400 and SC400 vehicles
• 7.01-inch wiring harness length for proper installation
• 20 gauge wire measurement for durability and signal integrity
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 10.55 inches for correct fitment

Detailed Product Features and Specifications

This Walker oxygen sensor (part number 350-34522) is a heated sensor designed to provide fast warm-up times and accurate oxygen level readings. It features a 4-wire configuration, which includes two wires for the heater circuit and two for the sensor signal, ensuring reliable operation. The wiring harness length of 7.01 inches allows for proper routing and connection within the engine bay. The sensor uses 20 gauge wires, balancing flexibility and durability. Its radiused polygon male connector ensures a secure and precise fit with the vehicle’s wiring harness. The sensor mounts via a threaded connection with an 18.0 mm diameter, matching OEM specifications for the Lexus LS400 and SC400. The overall length of 10.55 inches supports proper positioning in the exhaust system.

Walker Products Aftermarket Line Information

The Walker Products Aftermarket line offers replacement emission control components engineered to meet or exceed OEM standards. This oxygen sensor is part of that line, providing a direct fit solution for Lexus LS400 and SC400 models. The product line focuses on delivering reliable sensor performance and durability to maintain proper emissions control and engine efficiency.

Common Applications and Issues Addressed

• Restores accurate air-fuel mixture readings for improved fuel economy
• Resolves check engine light triggers related to oxygen sensor faults
• Helps reduce harmful emissions by ensuring proper sensor function
• Prevents engine performance issues caused by faulty oxygen sensors
• Supports smooth engine idling and acceleration by maintaining sensor accuracy

Installation Notes and Tips

When installing the Walker 350-34522 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the radiused polygon male connector aligns properly with the vehicle harness before securing. Follow torque specifications recommended by Lexus for sensor installation. Inspect wiring for any damage or corrosion prior to installation to ensure optimal sensor performance.

Quality Assurance and Warranty

Walker oxygen sensors undergo rigorous testing to meet emission control standards and provide reliable operation. This part is manufactured to match OEM fit and function for Lexus LS400 and SC400 models. While specific warranty details are not provided here, Walker Products Aftermarket parts typically come with a limited warranty covering defects in materials and workmanship.