Walker 350-34277 Oxygen Sensor

Overview of Walker 350-34277 Oxygen Sensor

The Walker 350-34277 oxygen sensor is designed specifically for select Lexus and Toyota models, including the 4Runner, Land Cruiser, and Tundra. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance by providing precise air-fuel mixture data.

• Heated sensor type for faster response times
• Specific fit for Lexus and Toyota vehicles
• Threaded mounting type with 18.0 mm thread diameter
• 4-wire configuration with radiused polygon male connector
• Wiring harness length of 8.39 inches and overall length of 11.93 inches
• Wire gauge measurement of 20 for reliable electrical performance

Detailed Product Features and Specifications

This oxygen sensor from Walker Products Aftermarket is engineered with a heated sensor element to reduce warm-up time, improving emissions control efficiency. The 4-wire design supports both the sensor signal and heater circuit, ensuring consistent operation under various engine conditions. The radiused polygon male connector provides a secure and precise connection, minimizing the risk of electrical faults. With a threaded mounting type and an 18.0 mm thread diameter, installation aligns with factory specifications for compatible Lexus and Toyota models.

Walker Products Aftermarket Line Information

The Walker Products Aftermarket line focuses on delivering reliable emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, offering a direct replacement solution tailored to specific vehicle applications. The product line emphasizes durability and fitment accuracy, supporting proper engine management and emissions compliance.

Compatible Vehicles and Common Applications

• Lexus models: GS400, GS430, GX460, GX470, LS400, LS430, LS600h, LX470, LX570, SC400, SC430
• Toyota models: 4Runner, Avanza, FJ Cruiser, Land Cruiser, Sequoia, Tundra, Yaris
• Used to address issues such as poor fuel economy, rough idling, increased emissions, check engine light activation, and failed emissions tests

Installation Notes and Tips

Ensure the engine is cool before installation to avoid injury. Use appropriate tools to remove the old sensor and install the Walker 350-34277 oxygen sensor by threading it securely into place. Verify the connector matches the radiused polygon male type for proper connection. Avoid over-tightening to prevent damage to the sensor or mounting threads.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-34277 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to support long-term reliability.