Walker 350-35027 Oxygen Sensor - Upstream Left or Upstream Right

Overview of Walker Oxygen Sensor 350-35027

The Walker 350-35027 oxygen sensor is designed specifically for select Audi and Porsche models, including the Audi A8 Quattro and Porsche 911. 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 A8 Quattro and Porsche 911
• 26.1-inch wiring harness length with 5 wires
• 20 gauge wire measurement for durability
• Radiused polygon male connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 29.65 inches for proper installation

Detailed Product Description

This Walker oxygen sensor (part number 350-35027) is engineered to meet the exact specifications required by Audi and Porsche vehicles, ensuring compatibility and reliable performance. The heated sensor design allows the unit to reach operating temperature quickly, improving emissions accuracy and reducing engine warm-up time. Featuring a 26.1-inch wiring harness and 5-wire configuration with 20 gauge wires, this sensor supports stable electrical connections and signal transmission. The radiused polygon male connector provides a secure fit, minimizing the risk of disconnection or signal loss. Its threaded mounting type with an 18.0 mm diameter ensures proper installation and sealing within the exhaust system.

Walker Products Aftermarket Line

Walker Products Aftermarket offers a range of emission control components designed to meet or exceed OEM standards. This oxygen sensor is part of their sensor category, focusing on delivering precise and durable solutions for emission systems. The product line emphasizes specific fitment and quality construction, making it suitable for professional repairs and maintenance on vehicles like the Audi A8 Quattro and Porsche 911.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for engine control units
• Helps resolve rough idling and poor fuel economy
• Reduces emissions-related check engine light triggers
• Improves catalytic converter efficiency
• Prevents failed emissions tests due to sensor malfunction

Installation Notes and Tips

When installing the Walker 350-35027 oxygen sensor, ensure the vehicle is compatible with this specific fitment for Audi A8 Quattro and Porsche 911 models. Use proper tools to avoid damaging the threaded mounting or connector. Verify the wiring harness length and connector type match the vehicle’s harness to ensure a secure connection. It is recommended to replace the sensor when the engine is cool to prevent burns and to apply anti-seize compound on the threads if specified by the vehicle manufacturer.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. While specific warranty details for part number 350-35027 should be confirmed with the supplier, Walker typically provides coverage against defects in materials and workmanship. This ensures reliable performance and durability for emission control applications in Audi and Porsche vehicles.