Walker 350-34488 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Reliable Oxygen Sensor for Nissan and Infiniti Vehicles

The Walker 350-34488 oxygen sensor is designed specifically for select Nissan and Infiniti models, including the 350Z, FX35, FX45, G35, M45, Pathfinder, and Q45. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance.

• Heated sensor type for faster response times
• Specific fit for Nissan and Infiniti models listed
• 18.43-inch wiring harness length with 4 wires
• 20 gauge wire for reliable signal transmission
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 21.97 inches for proper installation

Walker Products Aftermarket Line Overview

Walker Products Aftermarket offers a range of emission control components engineered to meet or exceed OEM specifications. The 350-34488 oxygen sensor is part of this line, providing a direct replacement solution with precise fitment and durable construction tailored for Nissan and Infiniti vehicles.

Detailed Product Description

This Walker oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The sensor includes a 4-wire configuration with 20 gauge wiring, ensuring accurate data transmission to the vehicle’s engine control unit. Its radiused polygon male connector and threaded mounting type with an 18.0 mm diameter provide a secure and reliable installation. The wiring harness length of 18.43 inches and overall length of 21.97 inches are optimized for the specific fitment requirements of Nissan 350Z, FX35, FX45, G35, M45, Pathfinder, and Infiniti Q45 models.

Common Applications and Issues Addressed

• Replacement for faulty or worn oxygen sensors in Nissan and Infiniti vehicles
• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Reduces emissions by providing accurate oxygen level readings
• Prevents check engine light triggers caused by sensor failure
• Improves fuel economy by enabling proper engine tuning

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Disconnect the battery to prevent electrical shorts. Use the correct tools to remove the old sensor and install the Walker 350-34488 oxygen sensor, making sure the threaded mounting is secure but not over-tightened. Verify the connector matches the radiused polygon male design for proper connection. After installation, clear any diagnostic trouble codes and perform a test drive to confirm sensor operation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for durability and performance. The 350-34488 part number undergoes rigorous testing to ensure compatibility and reliability with Nissan and Infiniti vehicles. Warranty details are provided by Walker and typically cover defects in materials and workmanship under normal use.