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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 23 Items.

Results 1 - 23 of 23

Denso Oxygen Sensors 234-4668

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

Part Number: DNP-234-4668

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Denso Oxygen Sensors 234-4669

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Cadillac, Chevrolet, GMC, Hummer, Each

Part Number: DNP-234-4669

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

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: Today

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Denso Oxygen Sensors 234-4651

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, Saturn, Each

Part Number: DNP-234-4651

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Denso Oxygen Sensors 234-4087

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Buick, Chevrolet, GMC, Isuzu, Oldsmobile, Pontiac, Each

Part Number: DNP-234-4087

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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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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Denso Oxygen Sensors 234-4650

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Buick, Cadillac, Chevrolet, GMC, for use on Honda®, Isuzu, Oldsmobile, Pontiac, Each

Part Number: DNP-234-4650

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Denso Oxygen Sensors 234-4000

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

Part Number: DNP-234-4000

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Denso Oxygen Sensors 234-4673

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

Part Number: DNP-234-4673

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Denso Oxygen Sensors for 2003-2005 ASTRO, SAFARI - 234-4344

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

Part Number: DNP-234-4344

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Denso Oxygen Sensors 234-4647

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Buick, Chevrolet, GMC, Isuzu, Oldsmobile, Pontiac, Saturn, Each

Part Number: DNP-234-4647

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Denso Oxygen Sensors 234-4343

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

Part Number: DNP-234-4343

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Denso Oxygen Sensors 234-4286

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

Part Number: DNP-234-4286

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Denso Oxygen Sensors for 2003-2005 ASTRO, SAFARI - 234-4345

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

Part Number: DNP-234-4345

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Denso Oxygen Sensors 234-4646

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Saturn, Each

Part Number: DNP-234-4646

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

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: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Denso Oxygen Sensors 234-4119

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Buick, Chevrolet, GMC, Isuzu, Oldsmobile, Saab, Each

Part Number: DNP-234-4119

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

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: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 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 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Denso Oxygen Sensors for 2002-2005 CAVALIER, SUNFIRE, 2005 GRAND AM - 234-4108

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

Part Number: DNP-234-4108

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Denso Oxygen Sensors 234-4104

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

Part Number: DNP-234-4104

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Denso Oxygen Sensors 234-4285

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Buick, Chevrolet, GMC, Isuzu, Oldsmobile, Pontiac, Saab, Each

Part Number: DNP-234-4285

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

Denso Oxygen Sensors for 2004-2005 AVEO - 234-4284

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

Part Number: DNP-234-4284

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

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