Walker 250-24101 Oxygen Sensor - Downstream Left

Overview of Walker 250-24101 Oxygen Sensor for Nissan and Infiniti

The Walker 250-24101 oxygen sensor is designed specifically for select Nissan and Infiniti models, including the Pathfinder and QX4. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated oxygen sensor with 4-wire design for precise readings
• Specific fit for Nissan Pathfinder and Infiniti QX4
• Threaded mounting type with 18.0 mm thread diameter
• 47.36 inches wiring harness length with radiused polygon male connector
• Wire gauge measurement of 20 for reliable electrical conductivity
• Overall length of 50.91 inches for proper installation depth

Detailed Product Description and Attributes

This Walker Products OE oxygen sensor (part number 250-24101) features a heated sensor type that allows for faster warm-up times and improved fuel efficiency. The sensor includes a 4-wire configuration, which supports both the sensor signal and heater circuit, enhancing responsiveness and durability. The wiring harness length of 47.36 inches provides ample reach for installation in the exhaust system of Nissan Pathfinder and Infiniti QX4 vehicles. The connector is a radiused polygon shape with a male gender, ensuring a secure and precise connection to the vehicle’s wiring harness. The threaded mounting type with an 18.0 mm diameter allows for straightforward replacement and compatibility with the original equipment specifications.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering emission control components that meet or exceed original equipment standards. This oxygen sensor is engineered to provide reliable performance and durability consistent with factory-installed parts. By using Walker Products OE components, technicians and vehicle owners can maintain the integrity of their Nissan Pathfinder or Infiniti QX4’s emission system with confidence.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve rough idling and engine hesitation caused by faulty sensors
• Reduces increased emissions and potential failed emissions tests
• Prevents poor fuel economy linked to sensor malfunction
• Eliminates check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Walker 250-24101 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. Verify the connector shape and wire count match the vehicle’s harness before installation. Proper torque should be applied to the 18.0 mm threaded sensor to prevent leaks and ensure sensor longevity.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards for emission control components. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emission regulations and supports the long-term reliability of Nissan Pathfinder and Infiniti QX4 vehicles.