Walker 250-24401 Oxygen Sensor - Downstream

Overview of Walker 250-24401 Oxygen Sensor for Nissan Vehicles

The Walker Products OE 250-24401 oxygen sensor is designed specifically for Nissan Frontier, Sentra, and Xterra models. 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, Sentra, and Xterra
• 26.69-inch wiring harness length for proper installation
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon female connector for secure connection
• Overall length of 30.24 inches for compatibility with OEM specifications
• 20 gauge wire for durability and signal integrity

Detailed Features and Specifications

This Walker 250-24401 oxygen sensor features a heated sensor type that allows for faster warm-up times and improved emissions control under various operating conditions. The 4-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The wiring harness length of 26.69 inches provides sufficient reach for proper routing in the engine bay. The sensor’s threaded mounting type with an 18.0 mm diameter matches OEM standards for secure installation. Additionally, the radiused polygon female connector ensures a precise and reliable electrical connection, reducing the risk of signal loss or corrosion.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering emission control components that meet original equipment specifications. This product line emphasizes quality and fitment accuracy, making the 250-24401 oxygen sensor a direct replacement part for Nissan vehicles. Using Walker Products OE parts helps maintain factory-level performance and emissions compliance.

Common Applications and Problem Resolution

• Restores accurate air-fuel ratio readings for Nissan Frontier, Sentra, and Xterra
• Resolves check engine light issues related to oxygen sensor faults
• Improves fuel efficiency by providing precise sensor data
• Reduces harmful emissions by ensuring proper catalytic converter function
• Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

When installing the Walker 250-24401 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Verify the connector type matches the vehicle’s harness before installation. Thread the sensor carefully to prevent cross-threading and torque to manufacturer specifications. After installation, clear any diagnostic trouble codes to reset the engine control module.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and OEM specifications. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain emissions compliance and engine performance for Nissan Frontier, Sentra, and Xterra models.