Walker 350-35033 Oxygen Sensor - Upstream

Overview of Walker Oxygen Sensor 350-35033 for Mazda 3

The Walker 350-35033 oxygen sensor is designed specifically for Mazda 3 and Mazda 3 Sport models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Wiring harness length: 10.35 inches
• Wire gauge measurement: 20 gauge
• Heated sensor type for faster response
• Specific fit for Mazda 3 and 3 Sport
• Five-wire configuration
• Radiused polygon male connector
• Thread diameter: 18.0 mm
• Overall length: 13.9 inches
• Threaded mounting type for secure installation

Walker Products Aftermarket Line Details

This oxygen sensor is part of the Walker Products Aftermarket line, which focuses on providing reliable emission control components tailored to specific vehicle applications. The line emphasizes precise fitment and quality construction to meet or exceed OEM standards, making it suitable for maintaining factory-level performance in Mazda vehicles.

Product Description and Features

The Walker 350-35033 oxygen sensor features a heated design that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its five-wire setup supports accurate signal transmission, while the 20-gauge wiring ensures durability and resistance to electrical interference. The radiused polygon male connector and threaded mounting type provide a secure and stable connection, minimizing the risk of sensor failure due to vibration or improper fit. With a wiring harness length of 10.35 inches and an overall length of 13.9 inches, this sensor is engineered for a precise fit in Mazda 3 and 3 Sport models.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces engine misfires and rough idling
• Prevents increased emissions and failed emissions tests
• Improves fuel economy by providing accurate oxygen level data
• Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

Installation requires removing the old oxygen sensor and threading the Walker 350-35033 sensor into the exhaust manifold or pipe. Ensure the connector matches the vehicle’s wiring harness and that the sensor is tightened to the manufacturer’s torque specifications. Avoid damaging the wiring harness during installation and verify the sensor’s orientation for optimal performance.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet strict quality standards, ensuring reliable operation and durability. While specific warranty details for part number 350-35033 should be confirmed with the supplier, Walker typically offers coverage against defects in materials and workmanship to support long-term use in Mazda 3 and 3 Sport vehicles.