Denso 234-4371 Oxygen Sensor - Downstream

Overview of the Denso OE Style Oxygen Sensor 234-4371

The Denso OE Style Oxygen Sensor 234-4371 is designed specifically for Ford Focus models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a 15.83-inch wiring harness length for accurate fitment and reliable operation.

• Heated oxygen sensor for faster response times
• Specific fit for Ford Focus vehicles
• Threaded mounting type with 0.708-inch thread diameter
• 15.83-inch wiring harness length with 4 wires
• Male connector for secure electrical connection

Detailed Features and Specifications

This Denso oxygen sensor (part number 234-4371) is engineered with a heated sensor element to ensure quicker activation and improved fuel efficiency. The sensor includes a 15.83-inch wiring harness with four wires, allowing for proper electrical communication with the vehicle’s engine control unit. Its threaded mounting type with a 0.708-inch diameter ensures a secure and precise installation. The male connector design facilitates a reliable connection, minimizing the risk of electrical issues. This sensor is a specific fit for Ford Focus models, ensuring compatibility and optimal performance.

About the Denso OE Style Product Line

The OE Style product line from Denso focuses on delivering parts that meet original equipment specifications. This oxygen sensor is part of that line, designed to match the fit, form, and function of the factory-installed sensor. Using the OE Style sensor helps maintain the integrity of the vehicle’s emission control system and supports compliance with environmental standards.

Common Applications and Problem Resolution

• Restores accurate oxygen level readings for proper air-fuel mixture
• Helps resolve engine performance issues such as rough idling or hesitation
• Reduces emissions by ensuring efficient catalytic converter operation
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel economy by providing precise sensor data

Installation Notes and Tips

When installing the Denso 234-4371 oxygen sensor on a Ford Focus, ensure the engine is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the wiring harness length and connector gender match the vehicle’s specifications. Proper torque should be applied to the threaded sensor to prevent leaks and ensure sensor longevity.

Quality Assurance and Warranty

Denso oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. The OE Style 234-4371 sensor is backed by Denso’s commitment to quality, providing reliable operation within the vehicle’s emission control system. Warranty details should be confirmed with the parts provider or manufacturer documentation.