NTK 24643 Oxygen Sensor - Downstream Left

Overview of NTK Direct Fit Oxygen Sensor 24643

The NTK Direct Fit Oxygen Sensor 24643 is designed specifically for select INFINITI and Nissan models, including the Pathfinder and QX4. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by providing precise air-fuel mixture data.

• Heated sensor type for faster response times
• Specific fit for INFINITI and Nissan Pathfinder and QX4
• Threaded mounting type with 18mm thread diameter
• 47.75-inch wiring harness length for easy installation
• Four-wire configuration for reliable signal transmission

Detailed Product Description

The NTK Direct Fit Oxygen Sensor 24643 is engineered to meet the exact specifications of your vehicle’s original equipment. Featuring a heated sensor element, it quickly reaches operating temperature to provide accurate oxygen level readings. The sensor’s 18mm threaded mounting ensures a secure fit, while the 47.75-inch wiring harness length offers flexibility during installation. With four wires, this sensor supports both the heater circuit and signal output, maintaining consistent performance under various driving conditions.

Compatible Vehicles and Applications

This oxygen sensor is compatible with specific INFINITI and Nissan models, including the Pathfinder and QX4. It is designed to replace the factory sensor directly, ensuring proper fit and function without modification.

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces harmful emissions by providing accurate feedback to the engine control unit
• Prevents engine performance issues related to faulty oxygen sensors
• Supports emission control system compliance

Installation Notes and Tips

• Ensure the vehicle is cool before sensor removal to avoid burns
• Use appropriate tools to avoid damaging the sensor or wiring harness
• Verify the sensor thread size (18mm) matches the vehicle’s mounting port
• Check wiring connections for secure fit and proper routing

Quality Assurance and Warranty

NTK’s Direct Fit Oxygen Sensor line is manufactured to meet OEM standards for durability and performance. Each sensor undergoes rigorous testing to ensure reliability and accuracy. While specific warranty details may vary, NTK typically offers coverage against defects in materials and workmanship to provide confidence in your purchase.