Walker 350-341029 Oxygen Sensor - Downstream Left

Overview of Walker 350-341029 Oxygen Sensor for Lexus Models

The Walker 350-341029 oxygen sensor is designed specifically for select Lexus vehicles, including the GS350, IS300, IS350, RC300, and RC350. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fit for Lexus GS350, IS300, IS350, RC300, and RC350 models
• 39.88 inches wiring harness length for flexible installation
• 18mm thread diameter for secure mounting
• Wire gauge measurement of 22 for durability and signal integrity
• Male connector gender for proper electrical connection
• Overall length of 43.43 inches to accommodate vehicle-specific routing

Detailed Product Description and Brand Line Information

This oxygen sensor from Walker Products Aftermarket is engineered to meet the exact specifications required by Lexus vehicles such as the GS350, IS300, IS350, RC300, and RC350. The sensor features a heated element and a 4-wire configuration, which allows for faster warm-up times and more accurate readings compared to unheated sensors. The 22-gauge wiring ensures consistent signal transmission, while the 18mm thread diameter matches factory mounting points for a secure fit. The wiring harness length of nearly 40 inches and overall length of over 43 inches provide sufficient reach for proper installation without modification.

Walker Products Aftermarket is a dedicated product line focused on delivering reliable replacement parts that meet or exceed OEM standards. This oxygen sensor is part of their emission control sensors category, designed to maintain vehicle emissions compliance and engine efficiency.

Common Applications and Issues Addressed

• Restores accurate air-fuel mixture readings for Lexus GS350, IS300, IS350, RC300, and RC350
• Helps resolve check engine light triggers related to oxygen sensor faults
• Improves fuel economy by providing precise exhaust gas data
• Reduces harmful emissions by ensuring proper catalytic converter function
• Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

• Ensure vehicle compatibility with Lexus GS350, IS300, IS350, RC300, or RC350 before installation
• Use appropriate tools to avoid damaging the 18mm threaded sensor during removal or installation
• Verify the male connector matches the vehicle’s wiring harness for a secure connection
• Handle wiring carefully to maintain the integrity of the 22-gauge wires and avoid shorts
• Allow the engine to cool before replacing the sensor to prevent burns or damage

Quality Assurance and Warranty

The Walker 350-341029 oxygen sensor is manufactured to meet stringent quality standards, ensuring reliable performance and durability. As part of the Walker Products Aftermarket line, this sensor is designed to provide consistent operation under normal driving conditions. Warranty details should be confirmed with the point of purchase or manufacturer documentation.