Denso 234-3305 Oxygen Sensor - Upstream Right

Overview of the Denso OE Style Oxygen Sensor 234-3305

The Denso OE Style Oxygen Sensor 234-3305 is designed specifically for select INFINITI and Nissan vehicles, including the Pathfinder and QX4 models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster activation and improved efficiency
• Specific fit for INFINITI Pathfinder and Nissan QX4 models
• Threaded mounting type with 0.708-inch thread diameter for secure installation
• Three-wire configuration with a male connector for direct compatibility
• 18.7-inch wiring harness length to accommodate factory routing

Detailed Product Features and Specifications

The Denso 234-3305 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, reducing emissions during cold starts. Its specific fitment ensures compatibility with INFINITI Pathfinder and Nissan QX4 vehicles, maintaining factory-level performance. The sensor includes a threaded mounting type with a 0.708-inch thread diameter, providing a secure and reliable installation. The three-wire design with a male connector matches the original equipment specifications, and the 18.7-inch wiring harness length supports proper routing without modification.

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering replacement parts that closely match original equipment specifications. This oxygen sensor is engineered to meet the exact fit, form, and function requirements of the original sensor installed in INFINITI and Nissan vehicles. The OE Style designation indicates that this sensor is designed to integrate seamlessly with the vehicle’s emission control system, ensuring consistent performance and compliance.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve rough idling and poor engine performance caused by faulty sensors
• Reduces increased emissions and potential failed emissions tests
• Eliminates check engine light codes related to oxygen sensor malfunction
• Improves fuel efficiency by providing precise exhaust gas readings

Installation Notes and Tips

When installing the Denso 234-3305 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 18.7 inches is sufficient for your vehicle’s routing. Confirm the male connector matches the factory harness to avoid electrical issues. It is recommended to apply anti-seize compound on the threads to facilitate future removal.

Quality Assurance and Warranty

Denso oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and reliability. The OE Style 234-3305 sensor is backed by Denso’s quality assurance protocols. Please refer to Denso’s official warranty terms for coverage details specific to this part.