Walker 350-34116 Oxygen Sensor - Downstream Left or Downstream Right

Overview of Walker 350-34116 Oxygen Sensor for Lexus Models

The Walker 350-34116 oxygen sensor is designed specifically for select Lexus vehicles, including the GS300, GS350, IS300, IS350, RC300, and RC350. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the engine management system.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fit for Lexus GS300, GS350, IS300, IS350, RC300, and RC350
• Threaded mounting type with 18.0 mm thread diameter for secure installation
• Radiused polygon male connector for proper electrical connection
• Wiring harness length of 19.21 inches and overall length of 22.76 inches
• Wire gauge measurement of 22 for durability and signal integrity

Detailed Product Description and Attributes

This Walker oxygen sensor (part number 350-34116) is a heated sensor designed to provide fast response times and accurate readings by maintaining optimal operating temperature. The 4-wire configuration includes two wires for the heater circuit and two for the sensor signal, ensuring consistent performance under various driving conditions. The sensor features a threaded mounting type with an 18.0 mm diameter, allowing for straightforward replacement in the exhaust system.

The connector is a radiused polygon shape with a male gender, engineered to match the factory wiring harness on compatible Lexus models. The wiring harness length of 19.21 inches and overall length of 22.76 inches provide sufficient reach for installation without modification. The 22-gauge wire measurement supports reliable electrical conductivity and resistance to wear.

Walker Products Aftermarket Line Information

Walker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM specifications. This oxygen sensor is part of their aftermarket line, providing a direct replacement solution for Lexus vehicles requiring precise emissions monitoring. The product line focuses on quality and fitment accuracy, ensuring compatibility and performance consistent with factory standards.

Common Applications and Issues Addressed

• Restores proper air-fuel ratio monitoring for Lexus GS300, GS350, IS300, IS350, RC300, and RC350
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing accurate sensor data to the engine control unit
• Reduces harmful emissions by maintaining optimal combustion conditions
• Prevents rough idling and engine hesitation caused by faulty oxygen sensors

Installation Notes and Tips

• Ensure the vehicle is cool before removing the old sensor to avoid burns
• Use appropriate oxygen sensor socket or wrench for removal and installation
• Do not over-tighten; torque to manufacturer specifications to avoid damage
• Verify connector compatibility with the vehicle’s wiring harness before installation
• Inspect wiring and connector for damage or corrosion prior to installation

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-34116 should be confirmed at the point of purchase, Walker typically offers limited warranties covering defects in materials and workmanship. This ensures reliable performance and peace of mind when replacing oxygen sensors on Lexus GS and IS series vehicles.