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Denso Products

Denso Oxygen Sensors

4.63 out of 5 stars 93 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 s
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 38 Items.

Results 1 - 25 of 38

Denso Oxygen Sensors 234-4210

Denso Oxygen Sensors 234-4210

Denso Oxygen Sensors 234-4210

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

Part Number: DNP-234-4210

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Denso Oxygen Sensors 234-4209

Denso Oxygen Sensors 234-4209

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: Today

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Estimated Ship Date: Today

Denso Oxygen Sensors 234-4566

Denso Oxygen Sensors 234-4566

Denso Oxygen Sensors 234-4566

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Buick, Cadillac, Chevrolet, GMC, Pontiac, Suzuki, Each

Part Number: DNP-234-4566

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Denso Oxygen Sensors for 2008-2013 SX4 - 234-4165

Denso Oxygen Sensors for 2008-2013 SX4 - 234-4165

Denso Oxygen Sensors for 2008-2013 SX4 - 234-4165

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Suzuki, Each

Part Number: DNP-234-4165

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors 234-4313

Denso Oxygen Sensors 234-4313

Denso Oxygen Sensors 234-4313

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

Part Number: DNP-234-4313

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Denso Oxygen Sensors 234-4222

Denso Oxygen Sensors 234-4222

Denso Oxygen Sensors 234-4222

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Chevrolet, Suzuki, Each

Part Number: DNP-234-4222

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors for 2002-2007 AERIO - 234-4225

Denso Oxygen Sensors for 2002-2007 AERIO - 234-4225

Denso Oxygen Sensors for 2002-2007 AERIO - 234-4225

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Suzuki, Each

Part Number: DNP-234-4225

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors for 1996-2002 ESTEEM - 234-4234

Denso Oxygen Sensors for 1996-2002 ESTEEM - 234-4234

Denso Oxygen Sensors for 1996-2002 ESTEEM - 234-4234

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Suzuki, Each

Part Number: DNP-234-4234

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors 234-4105

Denso Oxygen Sensors 234-4105

Denso Oxygen Sensors 234-4105

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Chevrolet, Suzuki, Each

Part Number: DNP-234-4105

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors 234-4117

Denso Oxygen Sensors 234-4117

Denso Oxygen Sensors 234-4117

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

Part Number: DNP-234-4117

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors for 1996-1998 SIDEKICK - 234-4031

Denso Oxygen Sensors for 1996-1998 SIDEKICK - 234-4031

Denso Oxygen Sensors for 1996-1998 SIDEKICK - 234-4031

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Suzuki, Each

Part Number: DNP-234-4031

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors for 1999-2000 GRAND VITARA - 234-4033

Denso Oxygen Sensors for 1999-2000 GRAND VITARA - 234-4033

Denso Oxygen Sensors for 1999-2000 GRAND VITARA - 234-4033

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Suzuki, Each

Part Number: DNP-234-4033

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors 234-4060

Denso Oxygen Sensors 234-4060

Denso Oxygen Sensors 234-4060

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Asuna, Chevrolet, Geo, Pontiac, Suzuki, Each

Part Number: DNP-234-4060

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors for 2006 VERONA - 234-4420

Denso Oxygen Sensors for 2006 VERONA - 234-4420

Denso Oxygen Sensors for 2006 VERONA - 234-4420

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Chevrolet, Suzuki, Each

Part Number: DNP-234-4420

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors for 2004-2005 VERONA - 234-4421

Denso Oxygen Sensors for 2004-2005 VERONA - 234-4421

Denso Oxygen Sensors for 2004-2005 VERONA - 234-4421

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Chevrolet, Suzuki, Each

Part Number: DNP-234-4421

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors for 2004-2005 VERONA - 234-4422

Denso Oxygen Sensors for 2004-2005 VERONA - 234-4422

Denso Oxygen Sensors for 2004-2005 VERONA - 234-4422

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Chevrolet, Suzuki, Each

Part Number: DNP-234-4422

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors for 2006-2008 FORENZA, RENO - 234-4423

Denso Oxygen Sensors for 2006-2008 FORENZA, RENO - 234-4423

Denso Oxygen Sensors for 2006-2008 FORENZA, RENO - 234-4423

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Chevrolet, Suzuki, Each

Part Number: DNP-234-4423

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors for 2006 VERONA - 234-4425

Denso Oxygen Sensors for 2006 VERONA - 234-4425

Denso Oxygen Sensors for 2006 VERONA - 234-4425

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Chevrolet, Suzuki, Each

Part Number: DNP-234-4425

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors for 2004-2005 FORENZA, 2005 RENO - 234-4427

Denso Oxygen Sensors for 2004-2005 FORENZA, 2005 RENO - 234-4427

Denso Oxygen Sensors for 2004-2005 FORENZA, 2005 RENO - 234-4427

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Suzuki, Each

Part Number: DNP-234-4427

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors for 2001-2005 GRAND VITARA, 2001-2004 TRACKER, 2004 VITARA - 234-4080

Denso Oxygen Sensors for 2001-2005 GRAND VITARA, 2001-2004 TRACKER, 2004 VITARA - 234-4080

Denso Oxygen Sensors for 2001-2005 GRAND VITARA, 2001-2004 TRACKER, 2004 VITARA - 234-4080

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Chevrolet, Suzuki, Each

Part Number: DNP-234-4080

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors for 2001 GRAND VITARA, 1999-2000 VITARA, 2002-2006 XL-7 - 234-4084

Denso Oxygen Sensors for 2001 GRAND VITARA, 1999-2000 VITARA, 2002-2006 XL-7 - 234-4084

Denso Oxygen Sensors for 2001 GRAND VITARA, 1999-2000 VITARA, 2002-2006 XL-7 - 234-4084

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Suzuki, Each

Part Number: DNP-234-4084

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors for 2006 VERONA - 234-4426

Denso Oxygen Sensors for 2006 VERONA - 234-4426

Denso Oxygen Sensors for 2006 VERONA - 234-4426

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Chevrolet, Suzuki, Each

Part Number: DNP-234-4426

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

Denso Oxygen Sensors 234-4297

Denso Oxygen Sensors 234-4297

Denso Oxygen Sensors 234-4297

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

Part Number: DNP-234-4297

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Denso Oxygen Sensors 234-4049

Denso Oxygen Sensors 234-4049

Denso Oxygen Sensors 234-4049

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Chevrolet, Geo, Pontiac, Suzuki, Each

Part Number: DNP-234-4049

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

Denso Oxygen Sensors for 2001-2002 ESTEEM, 2006-2008 GRAND VITARA - 234-4387

Denso Oxygen Sensors for 2001-2002 ESTEEM, 2006-2008 GRAND VITARA - 234-4387

Denso Oxygen Sensors for 2001-2002 ESTEEM, 2006-2008 GRAND VITARA - 234-4387

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Suzuki, Each

Part Number: DNP-234-4387

Not Yet Reviewed

Estimated Ship Date: Jan 9, 2026 if ordered today

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Estimated Ship Date: Jan 9, 2026 if ordered today

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