Walker 350-35007 Oxygen Sensor - Upstream or Upstream Left

Overview of Walker Oxygen Sensor 350-35007

The Walker 350-35007 oxygen sensor is designed specifically for select Audi and Volkswagen models, including the A8 Quattro, Beetle, Beetle Cabrio, and Touareg. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

• Heated sensor type for faster response times
• Specific fit for Audi and Volkswagen vehicles
• Threaded mounting type with 18.0 mm thread diameter
• 65.47 inches wiring harness length with 5 wires of 20 gauge
• Radiused polygon male connector for secure connection
• Overall length of 69.02 inches for proper installation

Detailed Product Features and Specifications

This Walker oxygen sensor (part number 350-35007) features a heated sensor element that allows it to reach operating temperature quickly, improving emissions accuracy and reducing engine warm-up time. The sensor is designed with a threaded mounting type and an 18.0 mm thread diameter, ensuring a secure and precise fit in the exhaust system. The wiring harness length of 65.47 inches and 5-wire configuration with 20 gauge wire provide reliable electrical connectivity. The radiused polygon male connector is engineered for a secure and stable connection, minimizing the risk of disconnection or signal loss. The overall length of 69.02 inches supports proper routing and installation in the vehicle’s engine bay.

Walker Products Aftermarket Line

The Walker Products Aftermarket line offers a range of emission control components designed to meet or exceed OEM specifications. This product line focuses on delivering reliable and durable parts for emission sensors, including oxygen sensors like the 350-35007. Walker’s aftermarket sensors are engineered to provide precise sensor readings and compatibility with specific vehicle makes and models, such as Audi and Volkswagen, ensuring proper engine management and emissions compliance.

Applications and Common Issues Addressed

• Replacement for faulty or failing oxygen sensors in Audi A8 Quattro, Beetle, Beetle Cabrio, and Touareg
• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Reduces emissions by providing accurate oxygen level data to the engine control unit
• Prevents check engine light triggers caused by sensor malfunctions
• Improves fuel efficiency by maintaining proper combustion control

Installation Notes and Tips

When installing the Walker 350-35007 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle’s wiring harness—this sensor uses a radiused polygon male connector. Route the wiring harness carefully to prevent contact with hot or moving parts. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet industry standards for durability and performance. While specific warranty details for part number 350-35007 may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports reliable vehicle operation.