Walker 250-23523 Oxygen Sensor - Downstream or Upstream

Overview of Walker 250-23523 Oxygen Sensor for Nissan Vehicles

The Walker 250-23523 oxygen sensor is designed specifically for Nissan 240SX, Pulsar NX, and Sentra models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated oxygen sensor with 3-wire configuration
• Specific fit for Nissan 240SX, Pulsar NX, and Sentra
• Threaded mounting type with 12.0 mm thread diameter
• Radiused polygon male connector for secure wiring harness connection
• Wiring harness length of 9.17 inches and overall length of 12.72 inches
• Wire gauge measurement of 20 for reliable electrical performance

Detailed Product Features and Specifications

This Walker Products OE oxygen sensor (part number 250-23523) features a heated sensor type that allows for quicker activation and more accurate readings under various operating conditions. The sensor includes a 3-wire setup with a radiused polygon male connector, ensuring a precise and secure fit within the vehicle's wiring harness. The threaded mounting type with a 12.0 mm diameter thread provides a stable installation point, compatible with the exhaust system of Nissan 240SX, Pulsar NX, and Sentra models. The wiring harness length of 9.17 inches and overall length of 12.72 inches are designed to match the factory specifications for these vehicles, facilitating straightforward replacement without modification.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM standards. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with factory-installed components. Using a Walker Products OE sensor helps maintain the integrity of the vehicle’s emission control system and supports compliance with environmental regulations.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Nissan 240SX, Pulsar NX, and Sentra
• Helps resolve engine performance issues related to incorrect air-fuel mixture readings
• Reduces emissions by providing accurate exhaust gas data to the engine control unit
• Prevents check engine light triggers caused by sensor malfunctions
• Improves fuel efficiency by maintaining proper combustion control

Installation Notes and Tips

When installing the Walker 250-23523 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Confirm the connector matches the radiused polygon male shape for a secure electrical connection. Follow torque specifications recommended by Nissan for the 12.0 mm threaded sensor to prevent leaks or sensor damage. Verify sensor wiring harness length and routing to prevent strain or interference with other components.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports long-term vehicle operation.