Denso 234-4312 Oxygen Sensor - Downstream Front, Downstream Rear or Downstream Right

Overview of the Denso OE Style Oxygen Sensor 234-4312

The Denso OE Style Oxygen Sensor 234-4312 is designed specifically for select INFINITI and Nissan models, including the 350Z, Altima, FX35, FX45, G35, M35, M45, Maxima, Q45, and Quest. This heated oxygen sensor ensures accurate air-fuel mixture readings to help maintain optimal engine performance and emissions control.

• Heated sensor type for faster response times
• Specific fit for INFINITI and Nissan vehicles
• 15.35-inch wiring harness length for precise installation
• Four-wire design with male connector
• Threaded mounting type with 0.708-inch thread diameter

Detailed Features and Specifications

The Denso 234-4312 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its 15.35-inch wiring harness length provides sufficient reach for proper connection without excess slack. The sensor includes four wires and a male connector, ensuring compatibility with the vehicle’s existing wiring harness. The threaded mounting type with a 0.708-inch diameter allows for secure and reliable installation in the exhaust system.

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 234-4312 oxygen sensor maintains the same fit, form, and function as the original sensor in your INFINITI or Nissan vehicle. The OE Style line focuses on quality and compatibility, making it a reliable choice for emission control components.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture
• Helps resolve engine performance issues related to faulty sensors
• 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 234-4312 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct 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 exhaust leaks.

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 234-4312 sensor is designed to provide reliable operation consistent with original equipment. Warranty coverage details should be confirmed with the supplier or manufacturer.