Denso 234-4778 Oxygen Sensor - Downstream

Overview of the Denso OE Style Oxygen Sensor 234-4778

The Denso OE Style Oxygen Sensor 234-4778 is designed specifically for Nissan Altima and Sentra models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for Nissan Altima and Sentra vehicles
• Threaded mounting type with 0.708 thread diameter
• 11.42-inch wiring harness length with 4 wires
• Male connector for secure electrical connection

Detailed Features and Specifications

This oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 11.42-inch wiring harness length provides sufficient reach for proper installation in Nissan Altima and Sentra exhaust systems. With a 0.708 thread diameter and threaded mounting type, the sensor installs securely in the designated exhaust port. The sensor includes a male connector with four wires, ensuring compatibility with the vehicle’s wiring harness and reliable signal transmission.

About the Denso OE Style Product Line

The Denso OE Style line is engineered to meet original equipment specifications, providing a direct replacement for factory-installed parts. This ensures that the 234-4778 oxygen sensor maintains the performance and reliability expected from Nissan’s original components. The OE Style line focuses on precise fitment and function, making it suitable for Nissan Altima and Sentra models requiring exact sensor specifications.

Common Applications and Problem Resolution

• Restores accurate oxygen level readings for proper air-fuel mixture
• Helps resolve rough idling and engine hesitation issues
• Reduces emissions by ensuring efficient catalytic converter operation
• Prevents check engine light triggers related to oxygen sensor faults
• Improves fuel economy by maintaining optimal combustion

Installation Notes and Tips

When installing the Denso 234-4778 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the wiring harness length and connector type match the vehicle’s specifications. Tighten the sensor to the manufacturer’s torque specifications to prevent exhaust leaks.

Quality Assurance and Warranty

Denso manufactures the 234-4778 oxygen sensor to meet strict quality standards, ensuring durability and reliable performance. This sensor is designed to match OEM specifications for Nissan Altima and Sentra models. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.