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Denso Oxygen Sensors

4.64 out of 5 stars 95 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 46 Items.

Results 1 - 25 of 45

Denso Oxygen Sensors 234-4337

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

Part Number: DNP-234-4337

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

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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 234-4012

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

Part Number: DNP-234-4012

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Denso Oxygen Sensors 234-4018

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

Part Number: DNP-234-4018

5.0 out of 5 stars ( 3 )

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 234-4651

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 234-4209

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 234-4647

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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Denso Oxygen Sensors 234-8054

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

Part Number: DNP-234-8054

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

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: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Denso Oxygen Sensors 234-4565

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

Part Number: DNP-234-4565

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered 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: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Denso Oxygen Sensors 234-4103

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

Part Number: DNP-234-4103

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Denso Oxygen Sensors 234-4339

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

Part Number: DNP-234-4339

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Denso Oxygen Sensors 234-4000

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

Part Number: DNP-234-4000

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Denso Oxygen Sensors 234-2001

Oxygen Sensor, OE Style, Unheated, Thread-In Mounting, Buick, Cadillac, Chevrolet, Daewoo, GMC, Oldsmobile, Pontiac, Each

Part Number: DNP-234-2001

Not Yet Reviewed

Estimated Ship Date: Today

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Denso Oxygen Sensors 234-8080

OXYGEN SENSOR

Part Number: DNP-234-8080

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Denso Oxygen Sensors 234-8085

DENSO Oxygen Sensor

Part Number: DNP-234-8085

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Denso Oxygen Sensors 234-4331

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

Part Number: DNP-234-4331

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 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: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Denso Oxygen Sensors 234-3094

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

Part Number: DNP-234-3094

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Denso Oxygen Sensors 234-3011

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

Part Number: DNP-234-3011

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 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: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Denso Oxygen Sensors 234-4526

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

Part Number: DNP-234-4526

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

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