NTK 25671 Oxygen Sensor

Overview of NTK Direct Fit Oxygen Sensor 25671

The NTK Direct Fit Oxygen Sensor 25671 is engineered for precise emission control in select Hyundai and Kia vehicles. Designed as a heated oxygen sensor with a specific fit, it ensures accurate air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor type for faster response times
• Specific fit for Hyundai and Kia models including Amanti, Azera, Borrego, Entourage, Genesis, Genesis Coupe, Santa Fe, Sedona, Sonata, Sorento, and Veracruz
• Four-wire configuration for reliable signal transmission
• Threaded mounting type with an 18mm thread diameter for secure installation
• 13-inch wiring harness length for proper connection without excess slack

Detailed Product Description

The NTK Direct Fit Oxygen Sensor 25671 is a critical component in the emission control system, designed to replace the factory sensor with exact fitment. Its heated sensor type allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The four-wire design supports both the sensor signal and heater circuit, ensuring consistent performance. With a threaded mounting type and an 18mm thread diameter, this sensor installs securely in the exhaust system. The 13-inch wiring harness length provides adequate reach for proper connection without unnecessary strain or extension.

Compatible Vehicles and Applications

This oxygen sensor is specifically compatible with a range of Hyundai and Kia models, including:

• Hyundai Amanti, Azera, Santa Fe, Sonata, Veracruz
• Kia Borrego, Entourage, Genesis, Genesis Coupe, Sedona, Sorento

It is designed to maintain factory-level performance and emission standards in these vehicles.

Common Issues Addressed by NTK Oxygen Sensor 25671

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance issues such as rough idling or hesitation
• Failed emissions tests related to sensor degradation

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use appropriate tools to remove the old sensor and install the NTK 25671 sensor by threading it securely into place. Verify the wiring harness length of 13 inches is sufficient for your vehicle’s connection points. Avoid over-tightening to prevent damage to the sensor or exhaust components.

Quality Assurance and Warranty

NTK’s Direct Fit Oxygen Sensor line is manufactured to meet OEM specifications for reliable performance and durability. While specific warranty details are not provided here, NTK products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product packaging or NTK documentation for exact warranty terms.