Walker 350-34326 Oxygen Sensor - Downstream or Upstream

Overview of Walker 350-34326 Oxygen Sensor

The Walker 350-34326 oxygen sensor is designed specifically for Chevrolet Astra and Cruze models, as well as Saturn vehicles. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for Chevrolet Astra, Cruze, and Saturn models
• 16.26-inch wiring harness length for precise installation
• 20-gauge wire with 4-wire configuration
• Radiused polygon female connector for secure connection
• Threaded mounting with 18.0 mm thread diameter
• Overall length of 19.8 inches for proper fitment

Detailed Product Description

This Walker oxygen sensor (part number 350-34326) is engineered with a heated sensor element to provide quicker warm-up times, improving fuel efficiency and reducing emissions sooner after engine start. The 4-wire design includes two wires for the heater circuit and two for the sensor signal, ensuring reliable operation. The wiring harness length of 16.26 inches allows for proper routing and connection within the engine bay. The sensor features a radiused polygon female connector, which offers a secure and precise fit to the vehicle’s wiring harness. Its threaded mounting type with an 18.0 mm diameter ensures compatibility with the exhaust system of Chevrolet Astra, Cruze, and Saturn models. The overall length of 19.8 inches supports proper positioning within the exhaust stream for accurate readings.

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing replacement parts that meet or exceed OEM specifications. Walker Products Aftermarket parts are designed to offer reliable performance and durability, making them suitable for emission control system repairs and maintenance.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve rough idling and engine hesitation
• Reduces excessive fuel consumption caused by faulty sensors
• Prevents check engine light related to oxygen sensor faults
• Supports emission system compliance and reduces harmful exhaust gases

Installation Notes and Tips

• Ensure vehicle compatibility with Chevrolet Astra, Cruze, or Saturn models before installation
• Use proper tools to avoid damaging the threaded mounting or connector
• Check wiring harness length and connector shape for correct fit
• Follow manufacturer torque specifications for sensor installation
• Inspect surrounding exhaust components for leaks or damage during replacement

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards. The 350-34326 sensor undergoes rigorous testing to ensure durability and reliable performance in emission control applications. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support customer confidence in their products.