Walker 350-64127 Oxygen Sensor - Upstream

Overview of Walker 350-64127 Oxygen Sensor for Lexus Vehicles

The Walker 350-64127 oxygen sensor is designed specifically for select Lexus models, including the GS200t, GS300, IS200t, IS300, RC200t, and RC300. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data.

• Heated oxygen sensor with 4-wire configuration
• Specific fit for Lexus GS200t, GS300, IS200t, IS300, RC200t, and RC300
• Threaded mounting type with 18.0 mm thread diameter
• 14.76-inch wiring harness length and 17.71-inch overall length
• Radiused polygon male connector for secure connection
• 20 gauge wire for reliable signal transmission

Detailed Product Features and Specifications

This Walker oxygen sensor (part number 350-64127) features a heated sensor type that allows for faster warm-up times and improved emissions control. The sensor includes a 4-wire design, which supports both the sensor signal and heater circuit, enhancing responsiveness and durability. The wiring harness length of 14.76 inches and overall length of 17.71 inches provide sufficient reach for installation in the specified Lexus models. The sensor mounts via a threaded connection with an 18.0 mm diameter, ensuring a secure and precise fit. The connector is a radiused polygon shape with a male gender, designed to match the factory wiring harness for a direct replacement.

Walker Products Aftermarket Line

Walker Products Aftermarket offers a range of emission control components engineered to meet or exceed OEM specifications. This oxygen sensor is part of their aftermarket line, providing a reliable alternative for maintaining emissions compliance and engine efficiency in Lexus vehicles. The product line focuses on quality and fitment accuracy, making it suitable for professional repairs and maintenance.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Resolves check engine light codes related to oxygen sensor failure
• Improves fuel efficiency by ensuring correct emissions feedback
• Reduces harmful exhaust emissions by maintaining sensor functionality
• Prevents engine performance issues caused by faulty sensor readings

Installation Notes and Tips

When installing the Walker 350-64127 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the connector matches the radiused polygon male design for a secure fit. It is recommended to inspect the wiring harness for any damage before installation. Proper torque specifications should be followed to avoid sensor or exhaust manifold damage.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-64127 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship. This ensures dependable performance and peace of mind when replacing oxygen sensors on compatible Lexus models.