Denso Oxygen Sensors

4.63 out of 5 stars 97 Customer Reviews

Oxygen sensors, also known as Lambda sensors or O2 sensors, are among the most sensitive and critical components on your car's engine. They monitor the air/fuel mix

Oxygen sensors, also known as Lambda sensors or O2 sensors, are among the most sensitive and critical components on your car's engine. They monitor the air/fuel mixture under idle, moderate acceleration, and cruise conditions. Oxygen sensors have a smaller range of limits in detecting and adjusting the difference from an optimum air/fuel ratio than the newer wide range air/fuel sensors (A/F sensors).

Today's engines may use as many as four oxygen sensors to monitor exhaust gas oxygen content and catalytic converter efficiency. In order to perform these functions properly, Denso oxygen sensors adhere to strict OE standards within incredibly close tolerances. A malfunctioning or incorrectly calibrated oxygen sensor can hurt drivability and illuminate the check engine light, resulting in costly and time-consuming repairs. Denso First Time Fit oxygen sensors are designed to meet those tolerances and more.

Key features and benefits of Denso Oxygen Sensors include:

* Robotic laser welds
* Porous PTFE filters block efficiency-robbing contaminants
* Double-protection covers maintain proper temperature for quicker response times and protect ceramic elements from silicone and lead fouling
* Rugged, watertight stainless steel housings resist corrosion and contamination
* Aluminum oxide trap layers keep silicone and lead out, preventing damage to the platinum electrode
* Refined zirconia elements improves sensor response
* Superior design maximizes engine performance while reducing fuel consumption and harmful emissions
* First Time Fit design delivers the right part the first time

Showing In Stock Items. Show All 25 Items.

Results 1 - 23 of 23

Denso Oxygen Sensors 234-4210

Oxygen Sensor, Universal, Heated, Thread-In Mounting, Each

Part Number: DNP-234-4210

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Denso Oxygen Sensors 234-4209

Oxygen Sensor, Universal, Heated, Thread-In Mounting, Each

Part Number: DNP-234-4209

3.6 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Denso Oxygen Sensors 234-4238

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4238

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Denso Oxygen Sensors 234-4552

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4552

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Denso Oxygen Sensors 234-2000

Oxygen Sensor, Universal, Unheated, Thread-In Mounting, Each

Part Number: DNP-234-2000

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors 234-4193

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4193

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Denso Oxygen Sensors 234-4854

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4854

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Denso Oxygen Sensors 234-4191

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4191

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Denso Oxygen Sensors 234-4192

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4192

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Denso Oxygen Sensors for 2015 OPTIMA, 2011-2014 SONATA - 234-4551

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4551

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors 234-4432

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4432

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors for 2011-2014 OPTIMA, 2011 SONATA - 234-4448

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4448

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors for 1996-1998 SONATA - 234-4035

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, Each

Part Number: DNP-234-4035

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors 234-4237

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4237

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors 234-4431

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4431

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors for 2006-2009 OPTIMA, 2007-2008 RONDO, 2006-2008 SONATA - 234-4433

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4433

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors 234-4436

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4436

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors 234-5714

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-5714

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors 234-4212

Oxygen Sensor, Universal, Heated, Thread-In Mounting, Each

Part Number: DNP-234-4212

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors 234-4434

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4434

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors for 2006-2009 OPTIMA, 2007-2008 RONDO, 2006-2008 SONATA - 234-4439

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4439

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors 234-4855

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for Hyundai, for Kia, Each

Part Number: DNP-234-4855

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

Denso Oxygen Sensors 234-4644

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Dodge, Eagle, for Hyundai, for Kia, Mitsubishi, Plymouth, Each

Part Number: DNP-234-4644

Not Yet Reviewed

Estimated Ship Date: Apr 14, 2026 if ordered today

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Estimated Ship Date: Apr 14, 2026 if ordered today

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