Walker 350-34689 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Overview of Walker 350-34689 Oxygen Sensor

The Walker 350-34689 oxygen sensor is designed specifically for select Infiniti and Nissan models, including the M35h, Note, Q50, Q70, Versa, and Versa Note. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Infiniti and Nissan vehicles
• 12.32-inch wiring harness length for flexible installation
• 20 gauge wire for reliable signal transmission
• Radiused polygon female connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 15.87 inches for proper fitment

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components engineered to meet or exceed OEM specifications. The line emphasizes precise fitment and durability, making the 350-34689 sensor a reliable choice for maintaining factory-level emissions performance in compatible Infiniti and Nissan vehicles.

Product Features and Specifications

The Walker 350-34689 oxygen sensor features a heated sensor type that allows for faster warm-up times and improved accuracy in measuring exhaust oxygen levels. Its 4-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring consistent operation. The wiring harness length of 12.32 inches offers sufficient reach for installation without excess slack. The sensor’s radiused polygon female connector provides a secure and corrosion-resistant connection, while the threaded mounting type with an 18.0 mm diameter ensures proper sealing and fitment in the exhaust system.

Common Applications and Problem Resolution

• Restores accurate air-fuel ratio readings for engine control units
• Helps resolve check engine light issues related to oxygen sensor faults
• Improves fuel efficiency by providing precise emissions data
• Reduces harmful exhaust emissions by maintaining proper combustion
• Prevents drivability problems such as rough idling or hesitation

Installation Notes and Tips

When installing the Walker 350-34689 oxygen sensor, ensure the vehicle is compatible with the part number and fitment list. Use proper tools to avoid damaging the threaded mounting or connector. It is recommended to disconnect the battery before installation to prevent electrical shorts. Verify the connector securely mates with the vehicle harness to avoid signal interruptions. 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 stringent quality standards, ensuring reliable performance and durability. The 350-34689 sensor undergoes rigorous testing to comply with emissions regulations and OEM requirements. Warranty coverage details should be confirmed with the supplier or manufacturer, as they may vary by region or distributor.