Walker 350-34424 Oxygen Sensor - Downstream, Downstream Rear or Upstream

Overview of Walker 350-34424 Oxygen Sensor

The Walker 350-34424 oxygen sensor is designed specifically for select Infiniti and Nissan vehicles, including the Altima, G20, and Pickup models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

• Heated sensor type for faster response times
• Specific fit for Infiniti and Nissan Altima, G20, and Pickup
• 11.93-inch wiring harness length with 4 wires
• 20 gauge wire for reliable signal transmission
• Radiused polygon male connector for secure connection
• Threaded mounting with 18.0 mm thread diameter
• Overall length of 15.47 inches for proper installation

Detailed Product Description

This Walker oxygen sensor (part number 350-34424) is engineered to meet the exact specifications required by Infiniti and Nissan vehicles such as the Altima, G20, and Pickup. Featuring a heated sensor element, it quickly reaches operating temperature to provide accurate oxygen level readings, which are critical for maintaining efficient combustion and reducing emissions. The sensor includes a 4-wire configuration with 20 gauge wiring, ensuring stable electrical signals and compatibility with the vehicle’s engine control unit.

The wiring harness length of 11.93 inches and an overall length of 15.47 inches allow for proper routing and fitment within the engine bay. The radiused polygon male connector provides a secure and precise connection, while the threaded mounting type with an 18.0 mm diameter ensures a tight and reliable installation.

Walker Products Aftermarket Line

Walker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM standards. This oxygen sensor is part of their aftermarket line, providing a direct replacement solution for specific Infiniti and Nissan models. The product line focuses on delivering reliable performance and durability for emission sensors, supporting vehicle compliance with environmental regulations.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for engine control
• Helps resolve rough idling and poor fuel economy
• Reduces emissions-related check engine light triggers
• Improves catalytic converter efficiency
• Prevents drivability problems caused by faulty oxygen sensors

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use the correct tools to remove the old sensor and install the Walker 350-34424 oxygen sensor securely by threading it into place with the specified 18.0 mm diameter. Verify the connector matches the radiused polygon male type for proper connection. Avoid damaging the wiring harness during installation and confirm the sensor wiring is routed away from hot or moving engine components.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-34424 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to ensure reliable operation throughout the sensor’s service life.