Walker 350-35048 Oxygen Sensor - Upstream

Overview of Walker 350-35048 Oxygen Sensor

The Walker 350-35048 oxygen sensor is designed specifically for select Mazda, Scion, and Toyota models, including the Mazda 3, Mazda 6, CX-3, CX-5, Scion iA, and Toyota Yaris. This heated oxygen sensor ensures accurate emissions monitoring and optimal engine performance through precise air-fuel mixture measurement.

• Heated sensor type for faster activation and improved efficiency
• Specific fitment for Mazda, Scion, and Toyota vehicles
• 22.17-inch wiring harness length for convenient installation
• Five-wire configuration with 20-gauge wire for reliable signal transmission
• Radiused polygon male connector for secure electrical connection
• Threaded mounting type with 18.0 mm thread diameter for proper fit
• Overall length of 25.71 inches to accommodate vehicle design

Walker Products Aftermarket Line Details

The Walker Products Aftermarket line offers replacement emission control components engineered to meet or exceed OEM specifications. The 350-35048 oxygen sensor is part of this line, providing a direct-fit solution with precise wiring and connector design tailored to specific vehicle models. This ensures compatibility and reliable performance in emission systems for Mazda, Scion, and Toyota vehicles.

Product Description and Attributes

This oxygen sensor features a heated element that allows it to reach operating temperature quickly, reducing the time the engine runs rich during cold starts. The sensor includes a 22.17-inch wiring harness with five 20-gauge wires, facilitating accurate signal transmission and integration with the vehicle’s engine control unit. The radiused polygon male connector ensures a secure and correct connection, while the threaded mounting type with an 18.0 mm diameter provides a stable and leak-free installation. The overall length of 25.71 inches accommodates the sensor’s placement within the exhaust system of compatible Mazda, Scion, and Toyota models.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Mazda 3, Mazda 6, CX-3, CX-5, Scion iA, and Toyota Yaris models
• Helps resolve engine performance issues related to incorrect air-fuel mixture readings
• Reduces emissions by ensuring accurate oxygen level detection
• Prevents check engine light triggers caused by sensor malfunctions
• Improves fuel efficiency by providing precise feedback to the engine control unit

Installation Notes and Tips

• Ensure vehicle compatibility by verifying make, model, and part number 350-35048 before installation
• Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting area
• Check the connector type and wiring harness length to confirm fitment with the vehicle’s existing harness
• Apply anti-seize compound to the sensor threads if recommended by the vehicle manufacturer
• After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation

Quality Assurance and Warranty

Walker Products Aftermarket oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable performance. The 350-35048 oxygen sensor undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary by region and application.