Walker 350-34496 Oxygen Sensor - Upstream

Overview of Walker Oxygen Sensor 350-34496

The Walker 350-34496 oxygen sensor is designed specifically for select Toyota and Scion models, including the Echo, xA, xB, and Yaris. 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 design for reliable operation
• Specific fit for Toyota Echo, xA, xB, Yaris and Scion models
• Threaded mounting type with 18.0 mm thread diameter
• 11.34 inches wiring harness length with radiused polygon male connector
• Wire gauge measurement of 20 for durability and signal integrity
• Overall length of 14.88 inches for proper installation depth

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing direct-fit replacement parts engineered to meet or exceed OEM specifications. The line emphasizes compatibility and durability, ensuring that the 350-34496 sensor integrates seamlessly with the vehicle’s existing systems for consistent emissions control and engine efficiency.

Technical Description and Attributes

The Walker 350-34496 oxygen sensor features a heated sensor type that allows for quicker activation and more accurate readings under various operating conditions. It includes a 4-wire configuration, which supports both the sensor signal and heater circuit, improving responsiveness and reducing warm-up time. The sensor’s wiring harness length of 11.34 inches and overall length of 14.88 inches are designed to fit the specific routing and mounting requirements of compatible Toyota and Scion models. The radiused polygon male connector ensures a secure and precise electrical connection, while the 18.0 mm threaded mounting type provides a reliable and leak-free installation.

Common Applications and Problem Resolution

• Restores accurate air-fuel ratio readings for improved fuel efficiency
• Helps resolve check engine light issues related to oxygen sensor faults
• Reduces emissions by ensuring proper catalytic converter function
• Eliminates rough idling or engine hesitation caused by faulty sensors
• Prevents failed emissions tests due to sensor malfunctions

Installation Notes and Tips

When installing the Walker 350-34496 oxygen sensor, ensure the vehicle is cool to avoid burns. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the connector type matches the vehicle harness before installation. Apply anti-seize compound to the threads if recommended by the vehicle manufacturer, but avoid contaminating the sensor tip. Tighten the sensor to the specified torque to prevent leaks and ensure proper function.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The 350-34496 part number undergoes rigorous testing to comply with emissions regulations and OEM fitment requirements. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary by region or distributor.