Denso 234-4985 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Overview of the Denso OE Style Oxygen Sensor 234-4985

The Denso OE Style Oxygen Sensor 234-4985 is designed specifically for select Nissan and INFINITI models, including the Altima, Juke, Maxima, Murano, Pathfinder, Quest, QX60, and Rogue. This heated oxygen sensor features a threaded mounting type and a male connector, ensuring precise fitment and reliable performance.

• Heated oxygen sensor for accurate emissions control
• Specific fit for Nissan and INFINITI vehicles
• Threaded mounting with 0.708 inch thread diameter
• 11.18-inch wiring harness length with 4 wires
• Male connector for secure electrical connection

Details on the Denso OE Style Product Line

The OE Style line by Denso focuses on delivering parts that meet original equipment specifications. This oxygen sensor 234-4985 is engineered to match the exact fit and function of the factory-installed sensor, providing consistent emissions monitoring and engine performance. The OE Style designation ensures compatibility and quality aligned with manufacturer standards.

Technical Description and Attributes

This oxygen sensor is a heated type, which allows it to reach operating temperature quickly for accurate air-fuel mixture readings. It includes a wiring harness length of 11.18 inches and four wires, supporting the sensor’s heating element and signal transmission. The sensor mounts via a threaded connection with a 0.708-inch diameter, and it features a male connector for direct plug-in installation. These specifications make it a direct replacement for the original sensor in compatible Nissan and INFINITI models.

Common Applications and Issues Addressed

• Helps maintain optimal air-fuel ratio for efficient combustion
• Reduces harmful emissions by providing accurate oxygen level data
• Prevents engine performance issues related to faulty sensors
• Resolves check engine light triggers caused by sensor failure
• Supports proper operation of the vehicle’s emission control system

Installation Notes and Tips

When installing the Denso 234-4985 oxygen sensor, ensure the engine is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Confirm the male connector aligns correctly with the vehicle’s wiring harness. It is recommended to apply anti-seize compound on the threads to facilitate future removal. Verify sensor wiring is intact and properly connected before completing installation.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. This part number 234-4985 undergoes rigorous testing to ensure durability and reliable performance. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship, providing confidence in the sensor’s longevity and function.