Walker 350-34431 Oxygen Sensor - Downstream Left or Downstream Right

Overview of Walker Oxygen Sensor for Lexus SC400

The Walker 350-34431 oxygen sensor is designed specifically for the Lexus SC400, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

• Wiring harness length: 29.45 inches
• Wire gauge measurement: 20 gauge
• Heated sensor type for faster response
• Specific fit for Lexus SC400
• Four-wire configuration
• Radiused polygon male connector shape
• Thread diameter: 18.0 mm
• Overall length: 32.99 inches
• Threaded mounting type for reliable attachment

Detailed Product Description

The Walker 350-34431 oxygen sensor is engineered to meet the exact specifications of the Lexus SC400. Its heated sensor design allows for quicker warm-up times, improving fuel efficiency and reducing emissions. The sensor includes a 29.45-inch wiring harness with 20-gauge wires, providing durability and reliable electrical connectivity. The four-wire setup supports both the sensor signal and heater circuit, essential for accurate oxygen level readings. The radiused polygon male connector ensures a secure and precise fit, minimizing the risk of connection issues. With an 18.0 mm thread diameter and threaded mounting type, installation is straightforward and compatible with the vehicle’s original equipment.

Walker Products Aftermarket Line

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components that meet or exceed OEM standards. Walker Products Aftermarket parts are designed to offer reliable performance and fitment for specific vehicle models, such as the Lexus SC400, ensuring compatibility and durability in emission sensor applications.

Common Applications and Issues Addressed

• Restores accurate oxygen level readings for proper air-fuel mixture
• Helps resolve engine performance issues related to faulty sensors
• Reduces emissions by ensuring proper catalytic converter function
• Eliminates check engine light triggers caused by sensor failure
• Improves fuel economy by maintaining optimal combustion

Installation Notes and Tips

• Ensure the vehicle is cool before sensor removal to avoid burns
• Use appropriate oxygen sensor socket for removal and installation
• Verify connector type matches the vehicle harness before installation
• Apply anti-seize compound on threads if not pre-coated
• Torque sensor to manufacturer specifications to prevent damage

Quality Assurance and Warranty

Walker oxygen sensors undergo rigorous testing to meet emission control standards and provide reliable operation. The 350-34431 part is manufactured to precise specifications for the Lexus SC400. While specific warranty details vary, Walker Products Aftermarket parts typically include a limited warranty against defects in materials and workmanship, supporting long-term performance and customer confidence.