Walker 350-34541 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Lexus and Toyota Vehicles

The Walker 350-34541 oxygen sensor is designed specifically for select Lexus and Toyota models, including the 4Runner, RAV4, SC300, T100, and Tacoma. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance.

• Heated sensor type for faster warm-up and improved efficiency
• Specific fit for Lexus and Toyota models listed
• 23.35-inch wiring harness length for precise installation
• 20 gauge wire with 4-wire configuration for reliable signal transmission
• Radiused polygon male connector for secure connection
• 18.0 mm thread diameter with flange mount for stable placement
• Overall length of 26.89 inches to accommodate vehicle design

Walker Products Aftermarket Line Overview

The Walker Products Aftermarket line focuses on providing quality emission control components that meet or exceed OEM specifications. This oxygen sensor from the Walker Products Aftermarket range is engineered to deliver consistent performance and durability, making it a suitable replacement part for maintaining emission standards in Lexus and Toyota vehicles.

Detailed Oxygen Sensor Description

This oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 4-wire setup includes two wires for the heater circuit and two for the sensor signal, ensuring accurate data transmission to the vehicle’s engine control unit. The radiused polygon male connector and flange mount provide a secure and precise fit, while the 18.0 mm thread diameter matches factory specifications. With a wiring harness length of 23.35 inches and an overall length of 26.89 inches, this sensor is tailored for the specific fitment requirements of Lexus and Toyota models such as the 4Runner, RAV4, SC300, T100, and Tacoma.

Common Applications and Issues Addressed

• Helps resolve poor fuel economy caused by faulty oxygen sensors
• Reduces engine performance issues related to incorrect air-fuel mixture
• Assists in passing emissions tests by providing accurate exhaust gas readings
• Prevents check engine light triggers related to oxygen sensor faults
• Supports proper catalytic converter function by monitoring exhaust gases

Installation Notes and Tips

• Ensure vehicle compatibility with Lexus and Toyota models listed before installation
• Use appropriate tools to avoid damaging the 18.0 mm threaded sensor
• Check connector orientation; the radiused polygon male connector must align correctly
• Inspect wiring harness length (23.35 inches) to confirm routing without strain
• Follow vehicle manufacturer torque specifications for flange mount installation

Quality Assurance and Warranty

The Walker 350-34541 oxygen sensor is manufactured to meet strict quality standards under the Walker Products Aftermarket brand. It is designed to provide reliable performance and durability consistent with OEM requirements. Warranty details are provided by the manufacturer and should be confirmed at the time of purchase.