Walker 350-34055 Oxygen Sensor - Downstream Front

Overview of Walker 350-34055 Oxygen Sensor for Toyota Sienna

The Walker 350-34055 oxygen sensor is designed specifically for Toyota Sienna models, providing precise emission control and engine performance monitoring. This heated oxygen sensor ensures accurate readings for optimal fuel efficiency and reduced emissions.

• Heated oxygen sensor with flange mount installation
• Specific fit for Toyota Sienna vehicles
• 9.37-inch wiring harness length with 4 wires
• 22 gauge wire measurement for reliable signal transmission
• Radiused polygon male connector for secure connection
• 18.0 mm thread diameter and 12.91-inch overall length

Detailed Features and Specifications

This Walker oxygen sensor (part number 350-34055) features a heated sensor type that allows for faster warm-up times and improved sensor response. The sensor is designed with a flange mount for secure and stable installation. It includes a 9.37-inch wiring harness with four 22-gauge wires, ensuring consistent electrical performance. The connector is a radiused polygon shape with a male gender, providing a precise fit to the vehicle’s wiring harness. The thread diameter measures 18.0 mm, and the overall length of the sensor is 12.91 inches, making it compatible with the Toyota Sienna’s emission system requirements.

Walker Products Aftermarket Line Information

The Walker Products Aftermarket line offers reliable emission control components designed to meet or exceed OEM specifications. This product line focuses on providing specific-fit sensors like the 350-34055 oxygen sensor, ensuring compatibility and performance for vehicles such as the Toyota Sienna. Walker’s aftermarket sensors are engineered to maintain emission standards and support engine management systems effectively.

Common Applications and Problem Resolution

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces vehicle emissions by providing accurate oxygen level data
• Prevents engine performance issues related to faulty oxygen sensors
• Addresses check engine light triggers caused by sensor failure
• Supports fuel economy by ensuring correct sensor operation

Installation Notes and Tips

When installing the Walker 350-34055 oxygen sensor on a Toyota Sienna, ensure the flange mount is securely fastened to prevent exhaust leaks. Verify the radiused polygon male connector matches the vehicle’s wiring harness for a proper electrical connection. Use appropriate tools to avoid damaging the 18.0 mm threaded sensor body during installation. It is recommended to inspect the wiring harness length of 9.37 inches to confirm compatibility with the vehicle’s routing requirements.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. While specific warranty details for part number 350-34055 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to support long-term use in Toyota Sienna vehicles.