Denso 234-4375 Oxygen Sensor - Upstream

Overview of the Denso OE Style Oxygen Sensor 234-4375

The Denso OE Style Oxygen Sensor 234-4375 is designed specifically for Ford Focus models, providing precise emissions control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a 17.91-inch wiring harness, ensuring a secure and accurate fit.

• Heated oxygen sensor for faster response times
• Specific fit for Ford Focus vehicles
• Threaded mounting with 0.708-inch thread diameter
• 17.91-inch wiring harness length with 4 wires
• Male connector for direct compatibility

Detailed Features and Specifications

This Denso oxygen sensor (part number 234-4375) belongs to the OE Style product line, which focuses on delivering original equipment quality and fitment. The OE Style line is engineered to meet or exceed factory specifications, ensuring reliable performance and durability. The sensor’s heated design allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. With a 0.708-inch threaded mounting and a male connector, installation is straightforward and secure. The 4-wire configuration supports accurate signal transmission for optimal engine management.

Compatible Vehicles and Applications

This oxygen sensor is specifically designed for Ford Focus models, making it a precise replacement part for emission control systems. It helps maintain proper air-fuel mixture by monitoring oxygen levels in the exhaust gases.

• Helps resolve rough idling and poor fuel economy
• Reduces engine hesitation and stalling
• Prevents failed emissions tests
• Corrects check engine light issues related to oxygen sensors
• Improves overall engine performance and efficiency

Installation Notes and Tips

When installing the Denso 234-4375 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting area. The 17.91-inch wiring harness length provides flexibility for routing, and the male connector ensures a secure electrical connection. Follow vehicle-specific service manual instructions for torque specifications and sensor location.

Quality Assurance and Warranty

Denso’s OE Style oxygen sensors are manufactured to meet strict quality standards, providing reliable operation and longevity. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Using a sensor designed for your Ford Focus helps maintain emission compliance and engine performance.