Denso 234-3012 Oxygen Sensor - Upstream Right

Overview of Denso OE Style Oxygen Sensor 234-3012

The Denso OE Style Oxygen Sensor 234-3012 is designed specifically for Mazda Millenia models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a female connector, making it a direct fit replacement for your vehicle.

• Heated oxygen sensor for accurate emissions monitoring
• Specific fit for Mazda Millenia vehicles
• Threaded mounting type with 0.708 inch thread diameter
• 13.78-inch wiring harness length with 3-wire configuration
• Female connector for secure electrical connection

Detailed Product Features and Specifications

The Denso 234-3012 oxygen sensor is engineered with a 13.78-inch wiring harness, providing sufficient length for installation without excess slack. It includes three wires and a female connector, designed to interface seamlessly with the Mazda Millenia’s existing wiring harness. The sensor’s heated element allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The threaded mounting type with a 0.708-inch diameter ensures a secure and proper fit in the exhaust system.

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering parts that meet original equipment specifications for fit, form, and function. This oxygen sensor is part of that line, offering a direct replacement solution that maintains the integrity of the vehicle’s emission control system. Using an OE Style sensor like the 234-3012 helps preserve factory performance standards and supports compliance with emissions regulations.

Common Applications and Problem Resolution

• Restores accurate oxygen level readings for engine control units
• Helps resolve rough idling and poor fuel economy issues
• Reduces exhaust emissions by ensuring proper air-fuel mixture
• Eliminates check engine light triggers related to oxygen sensor faults
• Prevents failed emissions tests due to sensor malfunction

Installation Notes and Tips

When installing the Denso 234-3012 oxygen sensor on a Mazda Millenia, ensure the sensor is threaded securely without cross-threading. The 13.78-inch wiring harness length allows for straightforward routing to the vehicle’s connector. Use appropriate anti-seize compound on the threads if recommended by the vehicle manufacturer. Verify the female connector is fully engaged to avoid electrical issues.

Quality Assurance and Warranty Information

Denso oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The OE Style 234-3012 sensor undergoes rigorous testing to comply with OEM specifications. Warranty coverage details should be confirmed with the parts provider or vehicle manufacturer, as they may vary.