Walker 250-24437 Oxygen Sensor - Downstream, Downstream Rear or Upstream

Overview of Walker 250-24437 Oxygen Sensor for Nissan and Infiniti

The Walker 250-24437 oxygen sensor is designed specifically for select Nissan and Infiniti models, including the Altima, G20, and Pickup. 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 Altima, G20, and Pickup models
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure electrical connection
• Wiring harness length of 11.93 inches and overall length of 15.47 inches
• Wire gauge measurement of 20 for reliable signal transmission

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-24437) features a heated sensor type that allows for faster warm-up times and improved emissions control. The sensor includes four wires, which provide both the sensor signal and heater power, ensuring consistent operation under various engine conditions. The radiused polygon male connector is designed for a secure and precise fit, reducing the risk of electrical issues. With an 18.0 mm threaded mounting type, installation is straightforward and compatible with the specified Nissan and Infiniti models. The wiring harness length of 11.93 inches and overall length of 15.47 inches provide adequate reach and fitment within the engine bay.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM specifications. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with factory-installed components. Choosing a Walker Products OE sensor helps maintain the integrity of your vehicle’s emissions system and supports compliance with environmental regulations.

Applications and Common Issues Addressed

• Restores accurate air-fuel ratio readings for Nissan Altima, G20, and Pickup
• Helps resolve rough idling and engine hesitation caused by faulty sensors
• Reduces increased emissions and failed emissions tests
• Prevents poor fuel economy linked to incorrect oxygen sensor data
• Eliminates check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Walker 250-24437 oxygen sensor, ensure the engine is cool to avoid burns. Use the correct 18.0 mm socket for removal and installation to prevent damage to the sensor or mounting threads. Verify the connector’s radiused polygon male shape matches the vehicle’s wiring harness for a secure connection. Avoid twisting or pulling on the wiring harness to maintain wire integrity. Proper torque specifications should be followed to ensure a tight seal without over-tightening.

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 may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain your vehicle’s emissions compliance and engine efficiency over time.