Denso 234-4987 Oxygen Sensor - Downstream Left

Overview of the Denso OE Style Oxygen Sensor 234-4987

The Denso OE Style Oxygen Sensor 234-4987 is designed specifically for Nissan Quest models, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a 19.02-inch wiring harness, ensuring a secure and accurate fit for your vehicle.

• Heated oxygen sensor for faster response times
• Specific fit for Nissan Quest models
• Threaded mounting type with 0.708-inch thread diameter
• 19.02-inch wiring harness length for optimal installation
• Four-wire design with male connector for reliable connectivity

Detailed Features and Specifications

The Denso 234-4987 oxygen sensor is engineered with a heated sensor element to provide quicker warm-up times, which helps reduce emissions and improve fuel efficiency. Its specific fitment for Nissan Quest vehicles ensures compatibility and ease of installation. The sensor includes a 19.02-inch wiring harness and a male connector with four wires, allowing for seamless integration with the vehicle’s existing wiring system. The threaded mounting type with a 0.708-inch diameter thread guarantees a secure and leak-free installation.

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering parts that meet original equipment specifications. This oxygen sensor is manufactured to match the fit, form, and function of the factory-installed sensor on Nissan Quest models. The OE Style designation indicates that this sensor is designed to provide reliable performance and durability consistent with the vehicle’s original components.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Nissan Quest vehicles
• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Reduces emissions by accurately monitoring exhaust gases
• Prevents check engine light triggers caused by sensor malfunctions
• Improves fuel economy by providing precise oxygen level data to the engine control unit

Installation Notes and Tips

• Ensure the vehicle is cool before installation to avoid burns
• Use appropriate tools to remove the old sensor and install the new threaded sensor securely
• Verify the wiring harness length and connector type match the vehicle’s specifications
• Check for any exhaust leaks after installation to maintain sensor accuracy
• Follow vehicle manufacturer torque specifications for sensor installation

Quality Assurance and Warranty

Denso oxygen sensors, including the 234-4987, are manufactured to meet strict quality standards and original equipment specifications. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship. This ensures that the sensor will perform reliably when installed in compatible Nissan Quest models.