Walker 350-33008 Oxygen Sensor - Upstream

Overview of Walker 350-33008 Oxygen Sensor for Nissan Vehicles

The Walker 350-33008 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
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Wiring harness length of 70.39 inches and overall length of 73.94 inches
• Wire gauge measurement of 20 for reliable signal transmission

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components tailored to specific vehicle applications. The line emphasizes precise fitment and durability, ensuring compatibility with original equipment specifications for Nissan models such as the D21, Pathfinder, and Pickup.

Technical Description and Features

The Walker 350-33008 oxygen sensor features a heated sensor element that allows for faster warm-up times and improved accuracy in measuring oxygen levels in the exhaust stream. The 3-wire design supports both sensor heating and signal output, while the radiused polygon male connector ensures a secure and corrosion-resistant electrical connection. With a threaded mounting type and an 18.0 mm thread diameter, installation aligns with factory specifications. The wiring harness length of 70.39 inches and overall length of 73.94 inches provide sufficient reach for proper routing within the engine bay. The 20-gauge wire measurement supports consistent electrical performance under various operating conditions.

Common Applications and Problem Resolution

• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Reduces emissions by providing accurate oxygen level data to the engine control unit
• Addresses check engine light triggers related to faulty oxygen sensors
• Improves fuel efficiency by enabling precise fuel management
• Prevents damage to catalytic converters caused by improper sensor readings

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle harness before installation. Route the wiring harness carefully to prevent contact with hot or moving engine components. Torque the sensor to manufacturer specifications to ensure a proper seal and sensor function.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet or exceed OEM standards for fit, form, and function. Each sensor undergoes rigorous testing to ensure reliable performance in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier.