Walker 350-34145 Oxygen Sensor - Downstream Left

Overview of Walker 350-34145 Oxygen Sensor

The Walker 350-34145 oxygen sensor is designed specifically for select Chevrolet and GMC heavy-duty trucks and SUVs. This heated oxygen sensor ensures accurate emissions control and optimal engine performance for vehicles like the Silverado 2500 HD and Yukon XL 2500.

• Heated sensor type for faster response times
• Specific fit for Chevrolet and GMC 2500 and 3500 series models
• Threaded mounting type with 18.0 mm thread diameter
• 19.21-inch wiring harness length with 4 wires of 20 gauge
• Radiused polygon female connector for secure connection
• Overall length of 22.76 inches for proper installation

Detailed Product Description

This Walker Products Aftermarket oxygen sensor (part number 350-34145) is engineered to meet the exact specifications of heavy-duty Chevrolet and GMC trucks, including the Avalanche 2500, Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, Silverado 3500, Suburban 2500, and Yukon XL 2500. The heated sensor design allows for quicker activation and more accurate readings of exhaust gases, which is critical for maintaining emissions compliance and engine efficiency.

The sensor features a threaded mounting type with an 18.0 mm thread diameter, ensuring a secure and precise fit. Its wiring harness length of 19.21 inches and four 20-gauge wires provide reliable electrical connections, while the radiused polygon female connector ensures compatibility with factory wiring harnesses. The overall length of 22.76 inches supports proper placement within the exhaust system.

Walker Products Aftermarket Line

The Walker Products Aftermarket line focuses on delivering emission control components that meet or exceed OEM standards. This oxygen sensor is part of that line, offering a direct replacement solution designed for specific vehicle applications. The product line emphasizes durability and precise fitment, which helps maintain vehicle emissions systems and engine performance over time.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing correct exhaust gas data
• Reduces emissions by ensuring proper catalytic converter function
• Prevents rough idling and engine hesitation caused by faulty sensors

Installation Notes and Tips

• Ensure vehicle compatibility with Chevrolet and GMC 2500/3500 series models before installation
• Use appropriate tools to avoid damaging the 18.0 mm threaded sensor
• Check connector type and wiring harness length for proper fit
• Follow manufacturer torque specifications for mounting
• Inspect wiring and connectors for corrosion or damage during replacement

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-34145 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to ensure reliable performance in emission control applications.