Walker 350-34455 Oxygen Sensor - Downstream Left

Overview of Walker 350-34455 Oxygen Sensor

The Walker 350-34455 oxygen sensor is designed specifically for select Chevrolet and GMC trucks and SUVs. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector, ensuring precise fitment and reliable performance in emission control systems.

• Heated oxygen sensor with 4 wires for accurate readings
• Specific fit for Chevrolet and GMC models including Silverado and Sierra series
• Threaded mounting with 18.0 mm thread diameter for secure installation
• 19.21 inches wiring harness length and 20 gauge wire for durability
• Radiused polygon male connector for proper electrical connection
• Overall length of 22.76 inches for optimal placement

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-34455) is engineered to meet the emission control requirements of Chevrolet and GMC vehicles such as the Sierra 1500 HD, Sierra 2500, Silverado 1500 HD, and Yukon XL 2500. The sensor’s heated design allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Featuring a 4-wire configuration and a 20 gauge wire measurement, this sensor provides reliable signal transmission to the engine control unit. The radiused polygon male connector ensures a secure and precise electrical connection, while the threaded mounting type with an 18.0 mm diameter thread guarantees proper installation and fitment.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on providing replacement emission control components that meet or exceed OEM specifications. This oxygen sensor is part of that line, offering a direct fit solution for specific Chevrolet and GMC models. The product line emphasizes durability and compatibility, making it suitable for professional repairs and maintenance.

Common Applications and Issues Addressed

• Restores proper oxygen sensing for accurate air-fuel mixture control
• Helps resolve engine performance issues such as rough idling or hesitation
• Reduces emissions by ensuring correct sensor feedback to the ECU
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel economy by maintaining optimal combustion conditions

Installation Notes and Tips

When installing the Walker 350-34455 oxygen sensor, ensure the vehicle is compatible with this specific part number and fitment list. Use proper tools to avoid damaging the threaded mounting or connector. Verify the wiring harness length of 19.21 inches is sufficient for your application. It is recommended to disconnect the battery before installation to prevent electrical shorts. After installation, clear any diagnostic trouble codes and perform a test drive to confirm sensor operation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-34455 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship. This ensures reliable performance and peace of mind when replacing oxygen sensors on Chevrolet and GMC vehicles.