NTK 24370 Air / Fuel Ratio Sensor - Upstream
OE Quality 60-Day Returns
NTK
 Direct Fit 5-Wire A/F Sensor

NTK 24370 Air / Fuel Ratio Sensor - Upstream

Brand NTK 24370
Position Upstream
Mounting Bracket Included No
Sensor Type Heated
Thread Diameter 18.000
Thread Length 0.38
Universal Or Specific Fit Specific
Wire Quantity 5
Wiring Harness Length 17.5
Product line Direct Fit 5-Wire A/F Sensor
Fits Kia and Hyundai · 18 vehicles

Direct fit design. Specific-fit sensor for straightforward replacement.

Heated sensor. Helps the sensor reach operating temperature quickly.

OE-spec tested. Built and verified to meet or exceed original equipment standards.

Cross-references Baldwin 18104, DENSO Auto Parts 234-5147 and 392102G720 for the same application. See all 3.

$148.69Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $148.69
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Air / Fuel Ratio Sensor options

NTK Direct Fit A/F Sensor for Hyundai and Kia

NTK 24370 is a direct fit heated air/fuel ratio sensor built for specific upstream applications on select Hyundai and Kia vehicles. It uses a 5-wire design and OE-style dimensions to support accurate exhaust feedback on the listed fitments, including the Hyundai Sonata, Hyundai Santa Fe Sport, Kia Optima, and Kia Sportage.

Key Features

  • Direct fit air/fuel ratio sensor for specific applications
  • Heated sensor design for faster operating response
  • 5-wire configuration
  • 17.5 in. wiring harness length
  • 18.000 mm thread diameter with 0.38 in. thread length
  • Specific fit for upstream Bank 1 Sensor 1 locations
  • NTK part number 24370

Product Details

NTK Direct Fit 5-Wire A/F Sensor 24370 is part of NTK’s sensor line for import and domestic coverage. NTK applies ceramic manufacturing expertise and OE application technology to produce sensors with controlled material quality from raw input through finished component. This sensor is engineered for the upstream Bank 1 Sensor 1 position on the listed Hyundai and Kia applications, including 2011-2015 Kia Optima, 2011-2016 Kia Sportage, 2011-2014 Hyundai Sonata, and 2013-2015 Hyundai Santa Fe Sport. This part cross-references DENSO Auto Parts 234-5147 for the same application.

Common Issues This Sensor Addresses

  • Fault codes related to air/fuel ratio sensor performance
  • Rough idle caused by inaccurate exhaust feedback
  • Fuel trim problems from a failing upstream sensor
  • Check engine light concerns tied to Bank 1 Sensor 1 operation
  • Slow sensor response on heated A/F sensor applications

Installation Notes

Install NTK 24370 only on the listed specific-fit vehicles and the upstream Bank 1 Sensor 1 position. Verify connector style, thread diameter, and harness length before installation. The sensor is heated and uses a 5-wire layout, so confirm the vehicle’s original sensor configuration matches the replacement part. No mounting bracket is included.

Quality Assurance

NTK manufactures oxygen and air/fuel ratio sensors with extensive testing during production to help meet or exceed OE specifications. As the Sensor Specialist and a major OE sensor supplier, NTK focuses on fit, form, and function for import and domestic applications.

Related reading

This part fits 18 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
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
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Baldwin — 18104DENSO Auto Parts — 234-5147392102G720