Denso 234-4706 Oxygen Sensor - Downstream

Overview of Denso OE Style Oxygen Sensor 234-4706

The Denso OE Style Oxygen Sensor 234-4706 is designed specifically for Subaru Forester and Impreza models. This heated oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions control.

• Heated sensor type for faster response times
• Specific fit for Subaru Forester and Impreza
• Threaded mounting type with 0.708 inch thread diameter
• Four-wire design with female connector
• Wiring harness length of 17.72 inches for precise installation

Detailed Product Features and Specifications

This oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving sensor response and reducing emissions during cold starts. The 4-wire configuration supports both the sensor signal and heater circuit, ensuring reliable operation. With a threaded mounting type and a 0.708 inch thread diameter, installation is straightforward and secure. The female connector and 17.72-inch wiring harness length provide compatibility with the factory wiring harness on Subaru Forester and Impreza vehicles, ensuring a proper fit and connection.

About the Denso OE Style Product Line

The OE Style line from Denso is engineered to meet original equipment specifications, providing a direct replacement for factory-installed parts. This ensures that the 234-4706 oxygen sensor maintains the performance and reliability expected from Subaru’s original components. The OE Style sensors are designed to integrate seamlessly with the vehicle’s emission control system, supporting compliance with emissions standards.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve rough idling and poor engine performance
• Reduces increased emissions and failed emissions tests
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by ensuring correct sensor feedback

Installation Notes and Tips

When installing the Denso 234-4706 oxygen sensor, ensure the vehicle is cool to avoid burns. Use an oxygen sensor socket or appropriate tool to remove the old sensor carefully. Verify the wiring harness length and connector type match the factory setup on Subaru Forester or Impreza models. Apply anti-seize compound to the sensor threads if not pre-applied to facilitate future removal. Tighten the sensor to the manufacturer’s torque specifications to avoid damage.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. This part is backed by Denso’s quality assurance, providing confidence in its fitment and function for Subaru Forester and Impreza vehicles. Warranty details are available through the manufacturer and typically cover defects in materials and workmanship.