NTK 25739 Oxygen Sensor - Downstream

Overview of NTK Direct Fit Oxygen Sensor 25739

The NTK Direct Fit Oxygen Sensor 25739 is designed specifically for select Hyundai and Kia models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a 27.5-inch wiring harness for straightforward installation.

• Heated oxygen sensor for faster response times
• Specific fit for Hyundai and Kia vehicles
• Threaded mounting type with 18mm thread diameter
• 27.5-inch wiring harness length for flexible installation
• Four-wire design for accurate signal transmission

Detailed Product Description

The NTK Direct Fit Oxygen Sensor 25739 belongs to the Direct Fit Oxygen Sensor product line, which focuses on providing exact replacement sensors tailored to specific vehicle applications. This ensures compatibility and reliable performance without the need for modifications. The sensor is heated, which helps it reach operating temperature quickly, improving fuel efficiency and reducing emissions. With a wire quantity of four and a threaded mounting type featuring an 18mm diameter, this sensor is engineered for durability and precise fitment.

Compatible Hyundai and Kia Models

This oxygen sensor is compatible with a range of Hyundai and Kia vehicles, including the Hyundai Accent, Elantra, Elantra GT, Ioniq, Kona, Niro, Optima, Rio, Sonata, Tucson, and Veloster, as well as the Kia Forte5, Forte Koup, Seltos, and Soul. The specific fitment ensures that the sensor integrates seamlessly with the vehicle’s emission control system.

Common Applications and Issues Addressed

• Restores proper air-fuel mixture readings for engine control
• Helps resolve check engine light issues related to oxygen sensors
• Improves fuel economy by providing accurate sensor data
• Reduces harmful emissions by maintaining optimal combustion
• Prevents engine performance problems caused by faulty sensors

Installation Notes and Tips

Installation of the NTK Direct Fit Oxygen Sensor 25739 requires removing the old sensor and threading the new sensor into place using the 18mm threaded mounting. The 27.5-inch wiring harness provides sufficient length for connection without strain. It is recommended to use anti-seize compound on the threads to facilitate future removal. Ensure the vehicle is cool before installation to avoid injury.

Quality Assurance and Warranty

NTK oxygen sensors are manufactured to meet OEM specifications, ensuring reliable performance and durability. The Direct Fit Oxygen Sensor line undergoes rigorous testing to comply with emission standards. While specific warranty details for part number 25739 should be confirmed with the supplier, NTK typically offers coverage against defects in materials and workmanship.