Denso 234-5029 Air / Fuel Ratio Sensor - Upstream
OE Quality 60-Day Returns
Denso
 OE Style

Denso 234-5029 Air / Fuel Ratio Sensor - Upstream

Brand Denso 234-5029
Position Upstream
Connector Gender Male
Grade Type Regular
Sensor Type Heated
Thread Diameter 0.711
Universal Or Specific Fit Specific
Wire Quantity 5
Wiring Harness Length 17.80
Product line OE Style
Fits Hyundai and Kia · 61 vehicles

OE style replacement. Precision-built for exact replacement and a first-time fit.

Heated sensor. Helps maintain accurate air-fuel ratio monitoring.

Specific fit. Made to match the part application precisely.

Cross-references Bosch 18104, Hyundai 392102G100 and Jaguar 392102G100 for the same application. See all 6.

$152.99Free shipping
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Order total $152.99
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

Denso OE Style Air/Fuel Ratio Sensor 234-5029

Denso 234-5029 is an OE Style heated air/fuel ratio sensor built for specific-fit replacement on select Hyundai and Kia applications. It is precision-built and tested to OE standards for accurate signal response and a first-time fit on the listed upstream locations.

Key Features

  • OE Style replacement air/fuel ratio sensor for emission control systems
  • Heated sensor design for faster operating temperature and stable feedback
  • Specific fit for direct replacement on supported Hyundai and Kia vehicles
  • 5-wire configuration with male connector
  • 17.80 in. wiring harness length for application-specific routing
  • Thread diameter: 0.711
  • Regular grade construction for everyday repair use

Product Details

This Denso air/fuel ratio sensor is designed for upstream placement where the engine management system monitors exhaust mixture and adjusts fuel delivery. The OE Style line focuses on exact replacement dimensions and connector layout, helping maintain proper sensor fit and electrical connection on vehicles such as the Hyundai Sonata, Hyundai Tucson, Kia Optima, Kia Sorento, and Kia Sportage. Part number 234-5029 is also referenced for select interchange applications, including Bosch 18104 and NTK 24381.

Compatible fitment includes 2013-2016 Hyundai Santa Fe Sport upstream, 2011-2016 Kia Optima upstream, 2015-2016 Kia Sportage upstream, 2011-2015 Hyundai Sonata upstream, 2014-2015 Hyundai Tucson upstream, and 2011-2015 Kia Sorento upstream. Additional coverage includes 2014 Kia Sportage upstream, 2009-2013 Hyundai Sonata upstream, 2010-2013 Hyundai Tucson upstream, 2010-2013 Kia Forte upstream, 2010-2013 Kia Forte Koup upstream, 2012-2013 Kia Forte5 upstream, 2011-2013 Kia Optima upstream, 2011-2013 Kia Sportage upstream, 2010-2012 Hyundai Santa Fe upstream, and 2009-2012 Kia Rondo upstream.

What It Helps Address

  • Check engine light related to upstream air/fuel ratio sensor performance
  • Rough idle caused by incorrect fuel mixture feedback
  • Reduced fuel control accuracy from a worn sensor
  • Slow sensor response during closed-loop operation
  • Emission control faults tied to the monitored upstream circuit

Installation Notes and Tips

Verify the connector style, wire count, and harness length before installation. This sensor is specific fit, so confirm the vehicle year, make, model, and upstream position against the listed applications for Hyundai Sonata, Hyundai Tucson, Kia Optima, Kia Sorento, and Kia Sportage. Use proper sensor removal tools and inspect the exhaust bung threads before threading in the replacement sensor.

Quality Assurance

Denso manufactures and tests this OE Style sensor to strict original-equipment standards for fit and performance consistency. The precision-built design supports direct replacement on the listed applications, helping reduce installation issues and repeat repairs.

Related reading

This part fits 61 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionFuel TypePositionNotes
2016HyundaiSanta Fe Sport——UpstreamOE Style
2016KiaOptima—ELECTRIC/GASUpstreamOE Style
2016KiaSportage——UpstreamOE Style
2015HyundaiSanta Fe Sport——UpstreamOE Style
2015HyundaiSonata—ELECTRIC/GASUpstreamOE Style
2015HyundaiTucson——UpstreamOE Style
2015KiaOptima——UpstreamOE Style
2015KiaSorento——UpstreamOE Style
2015KiaSportage——UpstreamOE Style
2014HyundaiSanta Fe Sport——UpstreamOE Style
2014HyundaiSonata——UpstreamOE Style
2014HyundaiTucson——UpstreamOE Style
2014KiaOptima——UpstreamOE Style
2014KiaSorento——UpstreamOE Style
2014KiaSportage——UpstreamLoc. Upper; OE Style
2013HyundaiSanta Fe Sport——UpstreamOE Style
2013HyundaiSonata—GASUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2013HyundaiSonata—ELECTRIC/GASUpstreamOE Style
2013HyundaiTucson——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2013HyundaiTucsonAutomatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2013KiaForte——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2013KiaForteAutomatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2013KiaForte KoupAutomatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2013KiaForte5Automatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2013KiaOptimaAutomaticGASUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2013KiaOptima—ELECTRIC/GASUpstreamOE Style
2013KiaSorento——UpstreamOE Style
2013KiaSportage——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2012HyundaiSanta Fe——UpstreamOE Style
2012HyundaiSonataAutomaticGASUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2012HyundaiSonata—ELECTRIC/GASUpstreamOE Style
2012HyundaiTucson——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2012HyundaiTucsonAutomatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2012KiaForteAutomatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2012KiaForte KoupAutomatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2012KiaForte5Automatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2012KiaOptimaAutomaticGASUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2012KiaOptima—ELECTRIC/GASUpstreamOE Style
2012KiaRondo——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2012KiaSorento——UpstreamOE Style
2012KiaSportage——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2011HyundaiSanta Fe——UpstreamOE Style
2011HyundaiSonataAutomaticGASUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2011HyundaiSonata—ELECTRIC/GASUpstreamOE Style
2011HyundaiTucson——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2011HyundaiTucsonAutomatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2011KiaForteAutomatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2011KiaForte KoupAutomatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2011KiaOptimaAutomaticGASUpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2011KiaOptima—ELECTRIC/GASUpstreamOE Style
2011KiaRondo——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2011KiaSorento——UpstreamOE Style
2011KiaSportage——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2010HyundaiSanta Fe——UpstreamOE Style
2010HyundaiSonata——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2010HyundaiTucsonAutomatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2010KiaForteAutomatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2010KiaForte KoupAutomatic—UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2010KiaRondo——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2009HyundaiSonata——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2009KiaRondo——UpstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 18104Hyundai — 392102G100Jaguar — 392102G100NTK — 24381Walker Products — 250-25062Walker Products — 350-35017