HomeEmission Control > SensorsNTK 24370 Air / Fuel Ratio Sensor - Upstream
Part #: 24370

NTK 24370 Air / Fuel Ratio Sensor - Upstream

Direct Fit 5-Wire A/F Sensor, Upstream
⚙️ 18 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Direct Fit 5-Wire A/F Sensor, Upstream
🚗Fitment: Kia and Hyundai, Sportage, Santa Fe Sport, Optima, and Sonata
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of NTK Direct Fit 5-Wire A/F Sensor 24370

The NTK Direct Fit 5-Wire Air/Fuel Ratio Sensor 24370 is designed for precise emission control in select Hyundai and Kia vehicles. This heated sensor ensures accurate air/fuel mixture readings to support optimal engine performance and emissions compliance.

  • Heated sensor type for faster response times
  • Specific fit for Hyundai Optima, Sonata, Kia Sportage, and Santa Fe Sport models
  • 5-wire configuration for reliable signal transmission
  • Thread diameter of 18.0 mm and thread length of 0.38 inches
  • 17.5-inch wiring harness length for direct fit installation
  • No mounting bracket included

About the Direct Fit 5-Wire A/F Sensor Product Line

The NTK Direct Fit 5-Wire A/F Sensor line focuses on providing vehicle-specific air/fuel ratio sensors engineered to match OEM specifications. This product line emphasizes direct replacement with exact wiring and thread dimensions, reducing installation time and ensuring compatibility with the vehicle’s engine management system. The 5-wire heated sensor design supports quicker warm-up and accurate readings under various operating conditions.

Detailed Product Description

This NTK air/fuel ratio sensor (part number 24370) is engineered for specific fitment on Hyundai Optima, Sonata, and Kia Sportage and Santa Fe Sport models. The heated sensor element allows for faster activation, improving fuel mixture monitoring shortly after engine start. With a 5-wire configuration, the sensor provides stable and precise voltage signals to the engine control unit. The 17.5-inch wiring harness length facilitates a direct fit installation without the need for extensions or modifications. The sensor’s thread diameter of 18.0 mm and thread length of 0.38 inches ensure proper sealing and fitment in the exhaust system.

Common Applications and Issues Addressed

  • Helps maintain proper air/fuel ratio for efficient combustion
  • Reduces emissions by providing accurate sensor data to the ECU
  • Resolves engine performance issues related to faulty air/fuel sensors
  • Prevents check engine light triggers caused by sensor failure
  • Supports compliance with emission regulations on Hyundai and Kia vehicles

Installation Notes and Tips

Installation of the NTK 24370 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 threads to prevent damage during installation. Verify the 5-wire harness connection matches the vehicle’s wiring harness to avoid electrical issues. This sensor is compatible with specific Hyundai and Kia models, so confirm vehicle fitment before installation.

Quality Assurance and Warranty

NTK sensors are manufactured to meet OEM standards for durability and performance. The Direct Fit 5-Wire A/F Sensor 24370 undergoes rigorous testing to ensure reliable operation under various driving conditions. While specific warranty details may vary, NTK typically offers coverage against manufacturing defects to provide confidence in product quality.

BrandNTK
Part Number24370
PositionDirect Fit 5-Wire A/F Sensor, Upstream
Mounting Bracket IncludedNo
Sensor TypeHeated
Thread Diameter18.000
Thread Length0.38
Universal Or Specific FitSpecific
Wire Quantity5
Wiring Harness Length17.5

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2016KiaSportage2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2015HyundaiSanta Fe Sport2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2015KiaOptima2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2015KiaSportage2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2014HyundaiSanta Fe Sport2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2014HyundaiSonata2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2014KiaOptima2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2014KiaSportage2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2013HyundaiSanta Fe Sport2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2013HyundaiSonata2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2013KiaOptima2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2013KiaSportage2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2012HyundaiSonata2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2012KiaOptima2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2012KiaSportage2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2011HyundaiSonata2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2011KiaOptima2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor
2011KiaSportage2.0LL4UpstreamBank 1 Sensor 1 Oxygen Sensor; Direct Fit 5-Wire A/F Sensor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

18104234-5147392102G720

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.