Walker 250-24451 Oxygen Sensor - Upstream Left

Overview of Walker 250-24451 Oxygen Sensor for Nissan Pathfinder

The Walker 250-24451 oxygen sensor is designed specifically for Nissan Pathfinder models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

• Wiring harness length: 33.39 inches
• Wire gauge measurement: 20 gauge
• Heated sensor type for faster response
• Specific fit for Nissan Pathfinder
• Four-wire configuration
• Radiused polygon male connector shape
• Thread diameter: 18.0 mm
• Overall length: 36.93 inches
• Threaded mounting type

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-24451) is engineered to meet the exact specifications of Nissan Pathfinder vehicles. The heated sensor design allows for quicker warm-up times, improving fuel efficiency and reducing emissions shortly after engine start. The four-wire setup includes two wires for the heater circuit and two for the sensor signal, ensuring accurate oxygen level readings. The 20-gauge wiring and 33.39-inch harness length provide reliable electrical connectivity, while the radiused polygon male connector ensures a secure and precise fit. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system.

Walker Products OE Brand Line Information

Walker Products OE is a product line focused on delivering original equipment quality parts that meet or exceed OEM standards. This oxygen sensor is part of that line, offering Nissan Pathfinder owners a sensor designed to match factory specifications for fit, form, and function. Using a Walker Products OE sensor helps maintain the vehicle’s emission control system integrity and supports compliance with environmental regulations.

Common Applications and Issues Addressed

• Restores accurate oxygen level readings for proper air-fuel mixture
• Helps resolve rough idling and engine hesitation
• Reduces increased fuel consumption caused by faulty sensors
• Prevents check engine light related to oxygen sensor faults
• Supports emission system compliance and reduces exhaust emissions

Installation Notes and Tips

When installing the Walker 250-24451 oxygen sensor on a Nissan Pathfinder, ensure the engine and exhaust system are cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector shape and wiring harness length match the vehicle’s specifications before installation. Proper torque should be applied to the threaded sensor to prevent leaks and ensure sensor longevity.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. This part number 250-24451 undergoes rigorous testing to comply with OEM requirements. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.