Walker 350-34263 Oxygen Sensor - Downstream or Downstream Front

Overview of Walker 350-34263 Oxygen Sensor for Nissan and Infiniti

The Walker 350-34263 oxygen sensor is designed specifically for select Nissan and Infiniti models, including the 200SX, G20, I30, and Maxima. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine management system.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Nissan 200SX, G20, I30, and Infiniti Maxima
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon female connector for secure wiring harness connection
• Overall length of 23.15 inches and wiring harness length of 19.61 inches
• Wire gauge measurement of 20 for reliable electrical conductivity

Walker Products Aftermarket Line Details

The Walker Products Aftermarket line focuses on providing replacement emission control components that meet or exceed OEM specifications. This oxygen sensor from the Walker Products Aftermarket range is engineered to deliver consistent performance and durability, ensuring compatibility and reliable operation within the specified Nissan and Infiniti models.

Technical Description and Attributes

This oxygen sensor features a heated sensor type, which allows it to reach operating temperature quickly for accurate readings shortly after engine start. The 4-wire design supports both the sensor signal and heater circuit, improving responsiveness and reducing emissions. The sensor’s threaded mounting type with an 18.0 mm diameter ensures a secure fit in the exhaust system. The radiused polygon female connector provides a precise and stable electrical connection, minimizing the risk of wiring issues. With an overall length of 23.15 inches and a wiring harness length of 19.61 inches, this sensor is designed to fit the specific routing and installation requirements of the Nissan 200SX, G20, I30, and Infiniti Maxima.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Nissan 200SX, G20, I30, and Infiniti Maxima
• Helps resolve engine performance problems related to incorrect air-fuel mixture
• Reduces emissions by providing accurate feedback to the engine control unit
• Addresses check engine light triggers caused by sensor malfunction
• Improves fuel efficiency by maintaining proper combustion control

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Disconnect the battery to prevent electrical shorts. Remove the old oxygen sensor carefully using the appropriate oxygen sensor socket. Verify the thread size and connector type match the Walker 350-34263 sensor before installation. Apply anti-seize compound to the threads if recommended by the vehicle manufacturer. Connect the wiring harness securely to the radiused polygon female connector. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards for durability and performance. While specific warranty details for part number 350-34263 should be confirmed at the point of purchase, Walker typically offers limited warranties covering defects in materials and workmanship. This ensures reliable operation and peace of mind when replacing oxygen sensors on Nissan and Infiniti vehicles.