Denso 234-8020 Oxygen Sensor - Downstream

Overview of Denso OE Style Oxygen Sensor 234-8020

The Denso OE Style Oxygen Sensor 234-8020 is designed specifically for select INFINITI and Nissan models, including the Armada, Qashqai, QX80, and Rogue Sport. This heated oxygen sensor features a threaded mounting type and a 4-wire configuration to ensure precise emissions control and optimal engine performance.

• Heated oxygen sensor for faster response times
• Specific fit for INFINITI and Nissan models
• Threaded mounting with 0.701 inch thread diameter
• 4-wire design with male connector
• Wiring harness length of 11.14 inches for proper installation

Detailed Product Description

The Denso OE Style line focuses on providing original equipment quality replacement parts that meet or exceed factory specifications. The 234-8020 oxygen sensor is engineered to match the exact fit and function required by your vehicle’s emission system. Its heated sensor type allows the unit to reach operating temperature quickly, improving fuel efficiency and reducing harmful emissions. The 4-wire design includes a male connector and a wiring harness length of 11.14 inches, ensuring compatibility and ease of connection within the engine bay. The threaded mounting type with a 0.701 inch diameter thread ensures secure installation in the exhaust system.

Compatible Vehicles and Applications

This oxygen sensor is compatible with the following makes and models:

• INFINITI Armada
• INFINITI QX80
• Nissan Qashqai
• Nissan Rogue Sport

It is designed to replace the factory oxygen sensor in these vehicles, helping to maintain proper air-fuel mixture and emissions control.

Common Issues Addressed by Oxygen Sensor 234-8020

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions and failed emissions tests
• Engine performance issues such as rough idling or hesitation
• Failed or degraded sensor causing improper catalytic converter function

Installation Notes and Tips

When installing the Denso 234-8020 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the correct tools to avoid damaging the threaded mounting. Verify the wiring harness length of 11.14 inches is sufficient for your vehicle’s sensor location. Confirm the male connector matches the factory harness to ensure proper electrical connection. Follow manufacturer torque specifications for sensor installation to prevent leaks or damage.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet original equipment standards, ensuring reliable performance and durability. The 234-8020 part number undergoes rigorous testing to comply with emissions regulations and vehicle specifications. Warranty coverage details should be confirmed with the parts distributor or vehicle manufacturer.