Walker 350-35045 Oxygen Sensor - Upstream

Overview of Walker 350-35045 Oxygen Sensor for Mazda 6 and CX-7

The Walker 350-35045 oxygen sensor is designed specifically for Mazda 6 and CX-7 models, providing precise emission control monitoring. This heated oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions compliance.

• Heated oxygen sensor with 5-wire configuration
• Specific fit for Mazda 6 and CX-7 vehicles
• 29.06-inch wiring harness length for flexible installation
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for secure connection
• Wire gauge measurement of 20 for reliable signal transmission
• Overall sensor length of 32.6 inches

Detailed Features and Specifications

This Walker Products Aftermarket oxygen sensor (part number 350-35045) is engineered with a heated sensor element to provide faster response times and improved accuracy in detecting oxygen levels in the exhaust stream. The 5-wire design supports both sensor heating and signal output, ensuring consistent performance under various operating conditions. The wiring harness length of 29.06 inches allows for convenient routing within the engine bay, while the 20-gauge wire ensures durability and signal integrity. The sensor’s threaded mounting type with an 18.0 mm diameter fits securely into the exhaust manifold or pipe, maintaining a tight seal to prevent exhaust leaks. The radiused polygon male connector is designed for a precise fit with the vehicle’s wiring harness, reducing the risk of connection issues.

Walker Products Aftermarket Brand Line

The Walker Products Aftermarket line focuses on providing reliable emission control components that meet or exceed OEM specifications. This oxygen sensor is part of that product line, offering a direct replacement solution tailored for specific vehicle applications like the Mazda 6 and CX-7. The brand line emphasizes quality construction and compatibility to support emission system efficiency and regulatory compliance.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve check engine light issues related to oxygen sensor faults
• Improves fuel efficiency by providing correct feedback to the engine control unit
• Reduces harmful emissions by ensuring proper catalytic converter operation
• Prevents rough idling and engine performance problems caused by faulty sensors

Installation Notes and Tips

When installing the Walker 350-35045 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. Verify the radiused polygon male connector aligns correctly with the vehicle’s harness to ensure a secure connection. Thread the sensor carefully into the exhaust port to avoid cross-threading. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors undergo rigorous testing to meet emission control standards and durability requirements. The 350-35045 part number is manufactured to provide consistent performance and long service life. Warranty coverage details should be confirmed with the product documentation or supplier, ensuring confidence in the sensor’s reliability for Mazda 6 and CX-7 applications.