NTK 25700 Air / Fuel Ratio Sensor - Upstream

Overview of NTK Direct Fit 4-Wire A/F Sensor 25700

The NTK Direct Fit 4-Wire A/F Sensor 25700 is designed specifically for select Honda models including the Accord, Civic, and HR-V. This heated air/fuel ratio sensor ensures accurate monitoring of the engine’s air-fuel mixture to support optimal emission control and engine performance.

• Heated sensor type for faster response times
• 4-wire configuration for precise signal transmission
• Specific fit for Honda Accord, Civic, and HR-V models
• Thread diameter of 18.000 mm and thread length of 0.38 inches
• Wiring harness length of 10.8 inches for direct fit installation
• No mounting bracket included

Details on the Direct Fit 4-Wire A/F Sensor Product Line

The Direct Fit 4-Wire A/F Sensor line by NTK is engineered to provide exact replacement sensors that match OEM specifications. This product line focuses on delivering sensors with precise wiring configurations and thread dimensions to ensure compatibility and reliable performance. The 4-wire heated sensor design helps maintain accurate air/fuel ratio readings under various operating conditions, which is critical for emission control systems.

Technical Description and Compatibility

The NTK 25700 air/fuel ratio sensor features a 4-wire heated sensor type that allows for quicker warm-up and improved sensor accuracy. With a wiring harness length of 10.8 inches, it is designed for a direct fit installation without the need for modifications. The sensor’s thread diameter of 18.000 mm and thread length of 0.38 inches ensure proper sealing and fitment in the exhaust system. This sensor is specifically compatible with Honda Accord, Civic, and HR-V models, making it a reliable choice for maintaining factory emission standards.

Common Applications and Issues Addressed

• Helps resolve engine performance issues related to incorrect air/fuel mixture
• Supports emission control system functionality to reduce harmful exhaust gases
• Addresses check engine light triggers related to faulty air/fuel sensors
• Improves fuel efficiency by providing accurate sensor data to the engine control unit
• Prevents drivability problems such as rough idling or hesitation

Installation Notes and Tips

Installation of the NTK 25700 sensor requires no mounting bracket as it is designed for direct fitment. Ensure the sensor threads match the exhaust port and use appropriate anti-seize compound on the threads to prevent damage during installation. Verify the wiring harness length of 10.8 inches is sufficient for your vehicle’s routing. It is recommended to disconnect the battery before installation and clear any diagnostic trouble codes after replacement.

Quality Assurance and Warranty

NTK sensors are manufactured to meet strict quality standards and OEM specifications. The Direct Fit 4-Wire A/F Sensor 25700 undergoes rigorous testing to ensure durability and accurate performance. While specific warranty details are not provided here, NTK typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.