Walker 350-34109 Oxygen Sensor - Downstream or Upstream

Overview of Walker 350-34109 Oxygen Sensor

The Walker 350-34109 oxygen sensor is designed specifically for select Toyota models, including the 4Runner, Celica, Pickup, and T100. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance through precise air-fuel mixture measurement.

• Heated sensor type for faster response times
• Specific fit for Toyota 4Runner, Celica, Pickup, and T100
• 11.34-inch wiring harness length with 4 wires
• 20 gauge wire for reliable signal transmission
• Radiused polygon male connector for secure connection
• Flange mount with 18.0 mm thread diameter
• Overall length of 14.88 inches for proper installation

Detailed Product Description

This oxygen sensor from Walker Products Aftermarket is engineered to meet the exact specifications of Toyota vehicles such as the 4Runner, Celica, Pickup, and T100. Featuring a heated sensor element, it provides quicker warm-up times compared to unheated sensors, improving emissions control and fuel efficiency. The sensor includes a 4-wire configuration with 20 gauge wiring, ensuring accurate and stable signal transmission to the engine control unit. The wiring harness length of 11.34 inches allows for proper routing and connection without excess slack. The radiused polygon male connector and flange mount with an 18.0 mm thread diameter provide a secure and precise fit, reducing the risk of leaks or connection issues. The overall length of 14.88 inches supports proper placement within the exhaust system.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on delivering reliable emission control components designed to meet or exceed OEM standards. This oxygen sensor is part of that line, offering a direct replacement solution tailored for specific Toyota models. The product line emphasizes compatibility, durability, and performance to support vehicle emissions compliance and engine management systems.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Toyota 4Runner, Celica, Pickup, and T100
• Helps resolve rough idling and poor fuel economy caused by inaccurate air-fuel mixture readings
• Reduces emissions-related check engine light triggers
• Improves engine performance by providing accurate oxygen level data
• Prevents damage to catalytic converters due to improper sensor function

Installation Notes and Tips

• Ensure vehicle compatibility with Toyota 4Runner, Celica, Pickup, or T100 before installation
• Use proper tools to avoid damaging the 18.0 mm threaded flange mount
• Check connector type and wiring harness length for fitment in the vehicle’s exhaust system
• Follow manufacturer torque specifications to secure the sensor
• Inspect wiring and connector for damage before installation

Quality Assurance and Warranty

The Walker 350-34109 oxygen sensor is manufactured to meet stringent quality standards under the Walker Products Aftermarket brand. It undergoes rigorous testing to ensure durability and reliable performance in emission control applications. Warranty coverage details should be confirmed with the product documentation or supplier.