NTK 24381 Air / Fuel Ratio Sensor - Upstream

Overview of NTK Direct Fit 5-Wire A/F Sensor 24381

The NTK Direct Fit 5-Wire Air/Fuel Ratio Sensor 24381 is designed for precise emission control in select Hyundai and Kia vehicles. This heated sensor provides accurate air/fuel mixture readings to optimize engine performance and reduce emissions.

• Heated sensor type for faster response times
• Specific fit for Hyundai and Kia models including Forte, Optima, and Santa Fe
• 5-wire configuration with a 17.8-inch wiring harness length
• Thread diameter of 18.0 mm and thread length of 0.38 inches
• Does not include a mounting bracket

Detailed Product Description

The NTK Direct Fit 5-Wire A/F Sensor 24381 is engineered to meet the exact specifications of various Hyundai and Kia vehicles such as the Forte, Forte5, Forte Koup, Optima, Rondo, Santa Fe, Santa Fe Sport, Sonata, Sorento, Sportage, and Tucson. This sensor features a heated element that allows it to reach operating temperature quickly, improving the accuracy of air/fuel ratio measurements. The 5-wire design supports reliable electrical connections, while the 17.8-inch wiring harness length provides sufficient reach for direct installation without modification. The sensor’s thread diameter of 18.0 mm and thread length of 0.38 inches ensure a secure fit in the exhaust system. Note that this part does not include a mounting bracket, so installation will require the use of the existing bracket or a compatible replacement.

The Direct Fit 5-Wire A/F Sensor product line from NTK focuses on providing exact-fit sensors that simplify installation and maintain factory-level performance. These sensors are designed to replace original equipment without the need for additional adapters or modifications, ensuring compatibility and reliable operation in emission control systems.

Common Applications and Issues Addressed

• Restores accurate air/fuel ratio readings for improved fuel efficiency
• Helps resolve engine performance issues related to incorrect sensor data
• Reduces emissions by ensuring proper combustion control
• Eliminates check engine light triggers caused by faulty A/F sensors
• Prevents drivability problems such as rough idling or hesitation

Installation Notes and Tips

• Compatible specifically with Hyundai and Kia models listed; verify vehicle fitment before installation
• Use proper tools to avoid damaging the sensor threads (18.0 mm diameter)
• Ensure wiring harness connections are secure and free of corrosion
• Do not reuse old mounting brackets if damaged; sensor does not include a bracket
• Follow vehicle manufacturer torque specifications when installing the sensor

Quality Assurance and Warranty

NTK sensors are manufactured to meet OEM standards for durability and performance. The Direct Fit 5-Wire A/F Sensor 24381 undergoes rigorous testing to ensure reliable operation under normal driving conditions. While specific warranty details are not provided here, NTK typically offers coverage against defects in materials and workmanship. Consult the product packaging or NTK documentation for exact warranty terms.