Walker 250-24102 Oxygen Sensor - Downstream Left or Downstream Right

Overview of Walker 250-24102 Oxygen Sensor for Nissan and Infiniti

The Walker 250-24102 oxygen sensor is designed specifically for select Nissan and Infiniti models, including the Frontier, Pathfinder, QX4, and Xterra. 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 design for reliable operation
• Specific fit for Nissan Frontier, Pathfinder, QX4, and Xterra
• 33.39-inch wiring harness length with 20-gauge wire for durability
• Threaded mounting type with 18.0 mm thread diameter for secure installation
• Radiused polygon male connector for proper electrical connection
• Overall length of 36.93 inches to accommodate factory routing

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-24102) features a heated sensor element that allows for faster warm-up times and improved emissions control under various operating conditions. The sensor includes a 4-wire configuration, which supports both the sensor signal and heater circuit, ensuring consistent performance. The wiring harness length of 33.39 inches and 20-gauge wire measurement provide sufficient reach and durability for the specific vehicle applications. The sensor’s threaded mounting type with an 18.0 mm thread diameter ensures a secure fit in the exhaust system, while the radiused polygon male connector matches factory specifications for easy plug-and-play installation.

Walker Products OE Line Description

The Walker Products OE line focuses on delivering direct-fit emission control components that meet or exceed original equipment specifications. This oxygen sensor is part of that line, engineered to provide reliable performance and compatibility with the original vehicle systems. Using Walker Products OE parts helps maintain factory-level emissions compliance and engine efficiency for Nissan and Infiniti vehicles.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Nissan Frontier, Pathfinder, QX4, and Xterra
• Helps resolve engine performance issues related to incorrect air-fuel mixture readings
• Reduces emissions by ensuring accurate sensor data to the engine control unit
• Prevents check engine light triggers caused by sensor malfunctions
• Improves fuel economy by maintaining proper combustion control

Installation Notes and Tips

When installing the Walker 250-24102 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 gender match the factory harness before installation. Properly route the wiring harness to prevent contact with hot exhaust components or moving parts. Torque the sensor to manufacturer specifications to ensure a secure fit and prevent exhaust leaks.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this part helps maintain compliance with emissions regulations and supports the longevity of your Nissan or Infiniti vehicle’s emission control system.