Walker 350-34469 Oxygen Sensor - Downstream Left

Overview of Walker Oxygen Sensor 350-34469

The Walker 350-34469 oxygen sensor is designed specifically for select INFINITI and Nissan models, including the Pathfinder and QX4. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance through precise sensor technology and tailored fitment.

• Heated oxygen sensor type for faster response times
• Specific fit for INFINITI and Nissan Pathfinder and QX4 models
• 47.36-inch wiring harness length with 20-gauge wire
• Four-wire configuration with a radiused polygon male connector
• Threaded mounting with an 18.0 mm thread diameter
• Overall length of 50.91 inches for proper installation

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components designed to meet or exceed OEM specifications. Walker Products Aftermarket parts are engineered to deliver consistent performance and durability, making them suitable replacements for factory-installed sensors in compatible vehicles.

Product Features and Specifications

The Walker 350-34469 oxygen sensor features a heated sensor element that allows for quicker activation and improved fuel efficiency. Its four-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring accurate oxygen level readings. The wiring harness length of 47.36 inches and overall length of 50.91 inches provide sufficient reach for installation in the engine bay. The radiused polygon male connector ensures a secure and precise connection, while the threaded mounting type with an 18.0 mm diameter allows for straightforward replacement in the exhaust system.

Compatible Vehicles and Applications

• INFINITI Pathfinder models requiring a specific heated oxygen sensor
• Nissan Pathfinder models compatible with part number 350-34469
• Nissan QX4 models needing a threaded oxygen sensor with a radiused polygon connector

Common Issues Addressed by This Oxygen Sensor

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions from malfunctioning sensor signals
• Engine performance problems such as rough idling or hesitation
• Failed emissions tests related to sensor degradation

Installation Notes and Tips

When installing the Walker 350-34469 oxygen sensor, ensure the vehicle is compatible with this specific fitment for INFINITI and Nissan Pathfinder or QX4 models. Use proper tools to remove the old sensor and avoid damaging the wiring harness or connector. The threaded mounting requires careful tightening to the manufacturer’s torque specifications to prevent leaks or sensor damage. Verify the connector’s radiused polygon shape matches the vehicle’s wiring harness for a secure fit.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable operation and durability. While specific warranty details for part number 350-34469 may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to product documentation or the manufacturer for exact warranty terms.