Denso 234-4065 Oxygen Sensor - Downstream, Upstream, Upstream Rear or Upstream Right

Overview of the Denso OE Style Oxygen Sensor 234-4065

The Denso OE Style Oxygen Sensor 234-4065 is designed specifically for select Acura and Honda models, including the Accord, Civic, Civic del Sol, Legend, NSX, RL, and TL. 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 Acura and Honda vehicles
• Threaded mounting type with 0.708-inch thread diameter
• Four-wire design with male connector
• Wiring harness length of 20.47 inches for precise installation

Detailed Features and Specifications

The Denso 234-4065 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its four-wire configuration supports both the sensor signal and heater circuit, ensuring reliable operation. The sensor is designed with a threaded mounting type and a 0.708-inch thread diameter, providing a secure and exact fit for the specified Acura and Honda models. The male connector and 20.47-inch wiring harness length facilitate straightforward installation without the need for modifications.

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering oxygen sensors that match original equipment specifications for fit, form, and function. This ensures that the 234-4065 sensor integrates seamlessly with the vehicle’s existing systems, maintaining factory performance standards and emissions compliance for Acura and Honda vehicles.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve engine performance issues such as rough idling or hesitation
• Reduces emissions by ensuring correct fuel combustion
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel economy by maintaining optimal sensor operation

Installation Notes and Tips

When installing the Denso 234-4065 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct socket size for the 0.708-inch threaded sensor to prevent damage. Verify the wiring harness length of 20.47 inches is sufficient for your vehicle’s routing. Confirm the male connector matches the vehicle’s wiring harness to ensure proper electrical connection. Follow manufacturer torque specifications to secure the sensor without over-tightening.

Quality Assurance and Warranty

Denso oxygen sensors, including the 234-4065, are manufactured to meet strict quality standards and original equipment specifications. This ensures reliable performance and durability in emission control applications. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship.