Walker 350-341006 Oxygen Sensor - Downstream Rear

Overview of Walker Oxygen Sensor 350-341006

The Walker 350-341006 oxygen sensor is designed specifically for select Lexus and Toyota models, including the Highlander, RX350, RX350L, RX450h, and RX450hL. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Lexus and Toyota models listed
• 23.15 inches wiring harness length for flexible installation
• 20 gauge wire for reliable signal transmission
• 18mm thread diameter for secure mounting
• Female connector for direct compatibility
• Overall length of 26.69 inches

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement emission control components engineered to meet or exceed OEM specifications. The line emphasizes precise fitment and durability, ensuring that the 350-341006 sensor integrates seamlessly with the vehicle’s existing systems for consistent performance.

Technical Description and Features

The Walker 350-341006 oxygen sensor features a heated sensor element that allows for faster warm-up times and improved accuracy in measuring exhaust gases. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, enhancing responsiveness and reliability. With a wiring harness length of 23.15 inches and an overall length of 26.69 inches, this sensor provides sufficient reach for installation in the exhaust system of compatible Lexus and Toyota vehicles. The 18mm thread diameter ensures a secure fit in the exhaust manifold or pipe, while the female connector matches factory wiring harnesses for straightforward replacement.

Common Applications and Problem Resolution

• Restores accurate air-fuel ratio readings for improved fuel efficiency
• Resolves check engine light issues related to oxygen sensor faults
• Helps reduce harmful 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

• Ensure vehicle compatibility with Lexus Highlander, RX350, RX350L, RX450h, or RX450hL models before installation
• Disconnect the battery before sensor replacement to avoid electrical shorts
• Use anti-seize compound on the sensor threads to facilitate future removal
• Verify connector gender and wiring harness length for proper fit
• Follow manufacturer torque specifications when tightening the sensor

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. The 350-341006 part number undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.