Walker 250-23093 Oxygen Sensor - Upstream

Overview of Walker 250-23093 Oxygen Sensor for Nissan Vehicles

The Walker 250-23093 oxygen sensor is designed specifically for Nissan D21, Pathfinder, and Pickup models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated oxygen sensor with 3-wire configuration
• Specific fit for Nissan D21, Pathfinder, and Pickup
• Wiring harness length: 70.39 inches for flexible installation
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Wire gauge measurement: 20 AWG for reliable signal transmission
• Overall length: 73.94 inches for proper fitment

Detailed Features and Specifications

This Walker Products OE oxygen sensor (part number 250-23093) is engineered with a heated sensor element to provide faster response times and improved fuel efficiency. The sensor includes a 3-wire design with a radiused polygon male connector, ensuring compatibility with the original equipment wiring harness on Nissan D21, Pathfinder, and Pickup models. The wiring harness length of 70.39 inches and overall length of 73.94 inches allow for straightforward installation without the need for extensions or modifications. The 18.0 mm threaded mounting type secures the sensor firmly in place, maintaining accurate exhaust gas readings.

Walker Products OE Line Information

The Walker Products OE line focuses on delivering direct-fit replacement parts that meet or exceed original equipment specifications. This oxygen sensor is part of that line, providing Nissan vehicle owners with a sensor designed to match factory performance and fitment requirements. Using a Walker Products OE sensor helps maintain emissions compliance and engine efficiency consistent with the original design.

Common Applications and Problem Resolution

• Restores proper air-fuel ratio monitoring in Nissan D21, Pathfinder, and Pickup
• Resolves check engine light issues related to oxygen sensor faults
• Improves fuel economy by providing accurate exhaust gas data
• Reduces harmful emissions by ensuring correct sensor operation
• Prevents engine performance problems caused by faulty oxygen sensors

Installation Notes and Tips

When installing the Walker 250-23093 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Connect the radiused polygon male connector securely to the vehicle’s wiring harness, verifying the 3-wire configuration matches the original sensor. Avoid pulling on the wiring harness to prevent damage. Proper torque specifications should be followed to avoid sensor damage or exhaust leaks.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. 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 reliable vehicle operation.