Walker 350-34004 Oxygen Sensor - Upstream

Overview of Walker 350-34004 Oxygen Sensor for Volkswagen Passat

The Walker 350-34004 oxygen sensor is designed specifically for Volkswagen Passat models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a 40.08-inch wiring harness and a 20-gauge wire measurement for reliable electrical connectivity.

• Heated oxygen sensor type for faster response times
• Specific fit for Volkswagen Passat vehicles
• 40.08-inch wiring harness length for flexible installation
• Four-wire configuration with male connector
• 18mm thread diameter and 43.62-inch overall length

Detailed Product Description

The Walker 350-34004 oxygen sensor is engineered to meet the exact specifications required by Volkswagen Passat models. Featuring a heated sensor element, it provides quicker warm-up times compared to unheated sensors, which helps maintain accurate air-fuel mixture readings under various operating conditions. The sensor includes a 40.08-inch wiring harness with 20-gauge wires, offering durability and ease of routing during installation. Its four-wire design with a male connector ensures compatibility with the vehicle’s existing wiring harness. The 18mm thread diameter and overall length of 43.62 inches make it a direct replacement part, minimizing installation complexity.

Walker Products Aftermarket Line

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components tailored to specific vehicle applications. Walker Products Aftermarket parts are designed to meet or exceed OEM standards, offering a balance of quality and value for professional repairs and maintenance.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for improved fuel efficiency
• Resolves check engine light triggers related to oxygen sensor faults
• Helps reduce harmful emissions by maintaining proper air-fuel ratios
• Prevents engine performance issues caused by faulty sensor readings
• Supports proper operation of catalytic converters

Installation Notes and Tips

When installing the Walker 350-34004 oxygen sensor on a Volkswagen Passat, ensure the engine is cool to avoid burns. Use an oxygen sensor socket or appropriate wrench to remove the old sensor carefully. Verify the connector type matches the vehicle harness before installation. Avoid damaging the wiring harness during routing and secure the sensor to prevent exhaust leaks. Follow torque specifications recommended by the vehicle manufacturer.

Quality Assurance and Warranty

Walker oxygen sensors undergo rigorous testing to meet emission control standards and provide reliable performance. The 350-34004 part number is backed by Walker’s quality assurance processes, ensuring compatibility and durability. Please refer to Walker’s warranty policy for specific coverage details.