Walker 250-24771 Oxygen Sensor

Overview of Walker 250-24771 Oxygen Sensor for Nissan and Infiniti

The Walker 250-24771 oxygen sensor is designed specifically for select Nissan and Infiniti models, including the Altima, GT-R, Maxima, Murano, NV2500, NV3500, Quest, QX56, and QX80. This heated oxygen sensor provides accurate emissions control data to optimize engine performance and reduce harmful exhaust emissions.

• Heated oxygen sensor with 4-wire design for precise readings
• Specific fit for Nissan and Infiniti vehicles ensuring proper installation
• 9.37-inch wiring harness length for flexible routing
• 20 gauge wire for durability and signal integrity
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 12.91 inches for proper fitment

Walker Products OE Brand Line Details

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. The 250-24771 oxygen sensor is part of this line, ensuring compatibility and reliable performance for Nissan and Infiniti vehicles. This product line emphasizes precise fitment and durability, supporting emission control systems with components engineered to match OEM standards.

Technical Description and Features

This oxygen sensor features a heated design with four wires, allowing for faster sensor warm-up and improved accuracy in measuring oxygen levels in the exhaust gases. The 20 gauge wiring ensures robust electrical performance, while the 9.37-inch wiring harness length provides sufficient reach for installation without excess slack. The radiused polygon male connector offers a secure and stable connection to the vehicle’s wiring harness. The sensor mounts via a threaded 18.0 mm diameter fitting, compatible with the exhaust system of the specified Nissan and Infiniti models. The overall length of 12.91 inches supports proper placement within the exhaust stream for optimal sensor function.

Common Applications and Problem Resolution

• Restores accurate air-fuel ratio readings for improved engine efficiency
• Resolves check engine light issues related to oxygen sensor faults
• Helps reduce emissions by providing precise feedback to the engine control unit
• Addresses poor fuel economy caused by faulty sensor signals
• Eliminates rough idling or hesitation linked to oxygen sensor malfunction

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 an appropriate oxygen sensor socket. Verify the connector type matches the vehicle harness before installation. Thread the new sensor by hand initially to avoid cross-threading, then tighten to manufacturer torque specifications. Reconnect the wiring harness securely to the radiused polygon male connector. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.

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. This part number 250-24771 is backed by Walker’s quality assurance protocols, providing confidence in fitment and function for Nissan and Infiniti vehicles. Warranty coverage details should be confirmed with the product documentation or supplier.