Walker 350-35086 Oxygen Sensor - Upstream Left or Upstream Right

Overview of Walker Oxygen Sensor 350-35086

The Walker 350-35086 oxygen sensor is designed specifically for select Audi models, including the A8 Quattro, S4, and S5. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector, ensuring precise fitment and reliable performance.

• Heated oxygen sensor for accurate emissions control
• Specific fit for Audi A8 Quattro, S4, and S5 models
• Threaded mounting with 18.0 mm thread diameter
• 29.65-inch wiring harness length with 5 wires
• 20 gauge wire measurement for durability
• Radiused polygon male connector for secure connection
• Overall length of 33.19 inches for proper installation

Detailed Product Description

This Walker oxygen sensor (part number 350-35086) is engineered to meet the exact specifications required by Audi vehicles such as the A8 Quattro, S4, and S5. The sensor is heated, which allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 5-wire configuration and 20 gauge wiring ensure stable signal transmission and durability under various operating conditions. The radiused polygon male connector provides a secure and precise electrical connection, while the threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system.

Walker Products Aftermarket is known for delivering reliable emission control components that comply with OEM standards. This product line focuses on providing sensors that match the original equipment in fit, form, and function, making the 350-35086 oxygen sensor a dependable replacement part for maintaining your Audi’s emission system performance.

Common Applications and Issues Addressed

• Helps maintain optimal air-fuel mixture for Audi A8 Quattro, S4, and S5
• Resolves engine performance issues related to faulty oxygen sensors
• Reduces emissions by providing accurate exhaust gas readings
• Prevents check engine light triggers caused by sensor failure
• Improves fuel economy by ensuring proper sensor operation

Installation Notes and Tips

• Ensure compatibility with your specific Audi model before installation
• Use proper tools to avoid damaging the 18.0 mm threaded sensor
• Check wiring harness length (29.65 inches) for routing clearance
• Verify connector type matches vehicle harness for secure connection
• Follow manufacturer torque specifications when mounting the sensor

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. While specific warranty details for part number 350-35086 should be confirmed at the point of purchase, Walker typically offers coverage against defects in materials and workmanship to support long-term use in emission control systems.