Walker 250-54103 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker 250-54103 Oxygen Sensor for Nissan and Infiniti

The Walker 250-54103 oxygen sensor is designed specifically for select Nissan and Infiniti models, including the Altima, G25, Juke, NV2500, and NV3500. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Nissan and Infiniti vehicles
• 12.32-inch wiring harness length for precise installation
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon female connector for secure connection
• Overall length of 15.87 inches for proper fitment
• Wire gauge measurement of 20 for reliable signal transmission

Walker Products OE Line Details

This oxygen sensor is part of the Walker Products OE line, which focuses on providing original equipment quality parts designed to meet or exceed factory specifications. The Walker Products OE line ensures compatibility and durability, making it a suitable replacement part for emission control sensors in Nissan and Infiniti vehicles.

Product Features and Specifications

The Walker 250-54103 oxygen sensor features a heated sensor type that allows for quicker activation and more accurate readings under various operating conditions. The 4-wire design supports both the sensor signal and heater circuit, improving responsiveness and reducing emissions. Its specific fitment ensures compatibility with Nissan Altima, Infiniti G25, Nissan Juke, and Nissan NV series models, maintaining factory-level performance.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces harmful emissions by providing accurate exhaust gas data
• Prevents engine performance issues related to faulty oxygen sensors
• Addresses check engine light triggers related to sensor malfunction
• Supports smooth engine idling and fuel economy

Installation Notes and Tips

Installation requires removing the old oxygen sensor and threading the Walker 250-54103 sensor into the exhaust manifold or pipe. The 18.0 mm threaded mounting and radiused polygon female connector ensure a secure fit. Care should be taken to avoid damaging the wiring harness, which measures 12.32 inches in length, and to connect the 4 wires correctly according to vehicle specifications.

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 may vary, Walker typically offers coverage against defects in materials and workmanship, providing confidence in the longevity of the 250-54103 oxygen sensor.