Walker 250-54089 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of Walker 250-54089 Oxygen Sensor for Nissan and Infiniti

The Walker 250-54089 oxygen sensor is designed specifically for select Nissan and Infiniti models, including the Cube, FX50, and Sentra. 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 configuration
• Specific fit for Nissan Cube, FX50, Sentra, and Infiniti models
• 15.87-inch wiring harness length for flexible installation
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Wire gauge measurement of 20 for reliable signal transmission
• Overall length of 19.41 inches for proper fitment

Walker Products OE Brand 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 reliable choice for maintaining emissions systems on Nissan and Infiniti vehicles.

Product Features and Technical Specifications

The Walker 250-54089 oxygen sensor features a heated sensor type that allows for quicker warm-up times and improved emissions control under various operating conditions. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, enhancing accuracy and responsiveness. The sensor’s radiused polygon male connector ensures a secure and precise fit, reducing the risk of connection issues. With a wiring harness length of 15.87 inches and an overall length of 19.41 inches, this sensor is engineered for specific fitment in Nissan Cube, FX50, and Sentra models, as well as compatible Infiniti vehicles. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation and secure attachment.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces harmful emissions by providing accurate oxygen level data
• Prevents engine performance issues such as rough idling or hesitation
• Resolves check engine light triggers related to oxygen sensor faults
• Supports fuel economy by optimizing engine management

Installation Notes and Tips

When installing the Walker 250-54089 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector shape and gender match the vehicle’s wiring harness for a secure connection. Properly route the wiring harness to prevent contact with hot or moving parts. After installation, clear any diagnostic trouble codes and perform a test drive to confirm sensor operation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. While specific warranty details for part number 250-54089 may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.