Walker 250-24626 Oxygen Sensor - Downstream

Overview of Walker 250-24626 Oxygen Sensor for Mercury and Nissan

The Walker 250-24626 oxygen sensor is designed specifically for Mercury Quest and Nissan Villager models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for Mercury Quest and Nissan Villager
• 48.35 inches wiring harness length for flexible installation
• 20 gauge wire with 4-wire configuration
• Radiused polygon female connector for secure connection
• Threaded mounting with 18.0 mm thread diameter
• Overall length of 51.89 inches for proper fitment

Detailed Features and Specifications

This Walker oxygen sensor (part number 250-24626) features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring reliable data transmission to the vehicle’s engine control unit. The wiring harness length of 48.35 inches provides ample reach for installation in the exhaust system of Mercury Quest and Nissan Villager vehicles. The radiused polygon female connector ensures a secure and precise fit, minimizing the risk of connection issues. The sensor mounts via a threaded design with an 18.0 mm diameter, matching OEM specifications for these models.

Walker Products OE Brand Line

Walker Products OE is a product line focused on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of the Walker Products OE line, ensuring compatibility and performance consistent with the original sensor installed on Mercury Quest and Nissan Villager vehicles. The OE line emphasizes precise fitment and durability, supporting emission control systems effectively.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Mercury Quest and Nissan Villager
• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Reduces emissions by providing accurate exhaust gas readings
• Prevents check engine light triggers caused by sensor malfunctions
• Improves fuel economy by enabling proper engine tuning

Installation Notes and Tips

When installing the Walker 250-24626 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. Confirm the connector shape and gender match the vehicle’s harness for a secure connection. Thread the sensor carefully into the exhaust port to avoid cross-threading. After installation, clear any diagnostic trouble codes and verify sensor operation with a scan tool.

Quality Assurance and Warranty

Walker oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The 250-24626 sensor undergoes rigorous testing to comply with emission control requirements. While specific warranty details are not provided here, Walker Products OE parts typically come with a limited warranty covering defects in materials and workmanship.