Walker 350-34023 Oxygen Sensor - Downstream Left or Downstream Right

Overview of Walker 350-34023 Oxygen Sensor

The Walker 350-34023 oxygen sensor is designed specifically for select Nissan and INFINITI models, including the Frontier, Pathfinder, QX4, and Xterra. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for Nissan Frontier, Pathfinder, QX4, and INFINITI Xterra
• 33.39 inches wiring harness length for flexible installation
• 20 gauge wire with 4-wire configuration
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 36.93 inches for proper fitment

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-34023) is engineered to meet the exact specifications of your vehicle’s emission system. Featuring a heated sensor element, it provides quicker warm-up times compared to unheated sensors, which helps reduce emissions during cold starts. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring reliable operation and accurate data transmission to the engine control unit.

The sensor’s wiring harness length of 33.39 inches and overall length of 36.93 inches allow for proper routing and installation in the exhaust system. The radiused polygon male connector ensures a secure and precise fit, minimizing the risk of connection issues. The threaded mounting type with an 18.0 mm diameter matches factory specifications for a straightforward replacement process.

Walker Products Aftermarket Line

Walker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM standards. This product line focuses on delivering reliable, vehicle-specific parts that maintain emission compliance and engine efficiency. The 350-34023 oxygen sensor is part of this line, providing a direct fit solution for Nissan and INFINITI vehicles requiring precise sensor performance.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Nissan Frontier, Pathfinder, QX4, and INFINITI Xterra
• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Reduces emissions by providing accurate exhaust gas readings
• Prevents check engine light triggers caused by sensor malfunctions
• Improves fuel efficiency by enabling proper engine management

Installation Notes and Tips

• Ensure vehicle compatibility with Nissan Frontier, Pathfinder, QX4, or INFINITI Xterra before installation
• Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole
• Check connector type and wiring harness length for proper fitment and routing
• Follow torque specifications for the 18.0 mm threaded sensor to prevent leaks
• Verify sensor operation after installation by monitoring engine performance and emissions

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable performance. While specific warranty details for part number 350-34023 may vary, Walker typically offers coverage against defects in materials and workmanship. Always consult product documentation or the supplier for exact warranty terms.