Walker 350-34685 Oxygen Sensor

Overview of Walker 350-34685 Oxygen Sensor

The Walker 350-34685 oxygen sensor is designed specifically for select Buick, Cadillac, Saab, and Saturn models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data to the vehicle's engine management system.

• Heated sensor type for faster response times
• Specific fit for Buick 9-3, Cadillac CTS, Saab 9-3, Saturn Rendezvous, and Vue
• 13.31-inch wiring harness length for convenient installation
• 20 gauge wire with 4-wire configuration
• Radiused polygon female connector for secure connection
• Threaded mounting type with 18.0 mm thread diameter
• Overall length of 16.85 inches

Detailed Product Features and Specifications

This Walker oxygen sensor (part number 350-34685) features a heated sensor element that allows it to reach operating temperature quickly, improving emissions accuracy shortly after engine start. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring reliable data transmission. The wiring harness length of 13.31 inches provides sufficient reach for proper routing in the engine bay. The sensor’s radiused polygon female connector is designed to fit securely with the vehicle’s wiring harness, reducing the risk of disconnection or corrosion. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation in the exhaust system.

Walker Products Aftermarket Line

Walker Products Aftermarket offers a range of emission control components engineered to meet or exceed OEM specifications. This oxygen sensor is part of their aftermarket line, providing a direct replacement solution tailored to specific vehicle applications. The focus on precise fitment and quality materials supports consistent engine performance and emissions compliance for Buick, Cadillac, Saab, and Saturn vehicles.

Applications and Common Issues Addressed

• Restores accurate air-fuel ratio readings for improved fuel efficiency
• Helps resolve rough idling caused by faulty oxygen sensors
• Reduces engine hesitation and stalling issues
• Assists in passing emissions inspections by maintaining proper exhaust gas readings
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

When installing the Walker 350-34685 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector type matches the vehicle harness before installation. Properly route the wiring harness to prevent contact with hot or moving parts. After installation, clear any diagnostic trouble codes and perform a test drive to confirm sensor operation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards for durability and performance. While specific warranty details 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.