Walker 250-24403 Oxygen Sensor

Overview of Walker 250-24403 Oxygen Sensor

The Walker 250-24403 oxygen sensor is designed specifically for select Infiniti, Nissan, and Suzuki 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 control unit.

• Heated sensor type for faster response times
• Specific fit for Infiniti, Nissan, and Suzuki vehicles
• 16.46-inch wiring harness length with 4 wires
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Overall length of 20.0 inches for proper installation
• 20 gauge wire for reliable signal transmission

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-24403) is engineered to meet the exact specifications of various Infiniti, Nissan, and Suzuki models including the 350Z, Altima, Frontier, FX35, FX45, G35, M35, M45, Maxima, NV1500, NV2500, NV3500, Pathfinder, Q45, Quest, Sentra, and Xterra. The heated sensor design allows it to reach operating temperature quickly, improving emissions control and fuel efficiency. The sensor features a 16.46-inch wiring harness with four 20-gauge wires, ensuring reliable electrical connections and signal integrity. Its radiused polygon male connector and threaded mounting type with an 18.0 mm thread diameter provide a secure and precise fit, reducing installation issues and ensuring consistent sensor performance.

Walker Products OE Brand Line

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, offering a direct replacement solution designed to maintain the emission control system’s integrity and vehicle performance. Using a Walker Products OE sensor helps ensure compatibility and durability consistent with the original sensor installed by the manufacturer.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for engine control units
• Helps resolve rough idling and poor fuel economy caused by faulty sensors
• Reduces emissions by ensuring proper catalytic converter function
• Eliminates check engine light triggers related to oxygen sensor faults
• Prevents drivability problems linked to incorrect sensor signals

Installation Notes and Tips

When installing the Walker 250-24403 oxygen sensor, ensure the vehicle is cool to avoid burns. Use anti-seize compound on the threaded portion if recommended by the vehicle manufacturer. Verify the connector matches the radiused polygon male type and securely connect the wiring harness. Proper torque on the 18.0 mm threaded mount is essential to prevent leaks and sensor damage. This sensor is a direct fit replacement for the specified Infiniti, Nissan, and Suzuki models, so no modifications should be necessary.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure reliability and durability. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports long-term vehicle performance.