Walker 350-34426 Oxygen Sensor - Upstream Left or Upstream Right

Overview of Walker 350-34426 Oxygen Sensor for Audi A8 Quattro and S8

The Walker 350-34426 oxygen sensor is designed specifically for Audi A8 Quattro and S8 models, providing precise emission control and engine performance monitoring. This heated oxygen sensor ensures accurate readings for optimal fuel efficiency and reduced emissions.

• Heated oxygen sensor with 4-wire design for reliable operation
• Specific fit for Audi A8 Quattro and S8 models
• Threaded mounting type with 18.0 mm thread diameter
• 13.31 inches wiring harness length with radiused polygon male connector
• Wire gauge measurement of 22 for durable electrical connections
• Overall length of 16.85 inches for proper installation depth

Detailed Features and Specifications

This Walker oxygen sensor (part number 350-34426) features a heated sensor type that allows for faster warm-up times and more accurate oxygen level detection. The 4-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The wiring harness length of 13.31 inches and the radiused polygon male connector provide a secure and precise fit, minimizing installation issues. The sensor’s threaded mounting type with an 18.0 mm diameter matches factory specifications for Audi A8 Quattro and S8 vehicles, ensuring compatibility and ease of replacement.

Walker Products Aftermarket Line

Walker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM standards. This product line focuses on delivering reliable, vehicle-specific parts like the 350-34426 oxygen sensor, which is engineered to maintain proper engine management and emissions compliance for Audi models. Using Walker Products Aftermarket parts helps maintain the integrity of your vehicle’s emission system.

Common Applications and Problem Resolution

• Restores accurate air-fuel ratio readings for Audi A8 Quattro and S8
• Resolves check engine light issues related to oxygen sensor faults
• Improves fuel efficiency by providing precise oxygen level data
• Reduces harmful emissions by ensuring proper catalytic converter function
• Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

When installing the Walker 350-34426 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’s radiused polygon shape and male gender match the vehicle’s wiring harness. Properly route the 13.31-inch wiring harness to avoid contact with hot or moving parts. It is recommended to check for any diagnostic trouble codes before and after installation to confirm sensor functionality.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors undergo rigorous testing to meet emission control standards and provide reliable performance. The 350-34426 sensor is manufactured to precise specifications for Audi A8 Quattro and S8 models. While specific warranty details are not provided here, Walker typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.