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 228 Items.

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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: Tomorrow

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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: Tomorrow

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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: Tomorrow

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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: Tomorrow

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Denso Oxygen Sensors 234-4260

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Lexus, Toyota, Each

Part Number: DNP-234-4260

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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Denso Oxygen Sensors 234-4162

Oxygen Sensor, OE Style, Heated, Flange Mount, Toyota, Each

Part Number: DNP-234-4162

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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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: Tomorrow

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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: Tomorrow

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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: Tomorrow

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Denso Oxygen Sensors 234-4112

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

Part Number: DNP-234-4112

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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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: Tomorrow

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Denso Oxygen Sensors for 2000-2004 TACOMA - 234-4189

Oxygen Sensor, OE Style, Heated, Flange Mount, Toyota, Each

Part Number: DNP-234-4189

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Denso Oxygen Sensors 234-4610

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Ford, Lincoln, Mazda, Mercury, Each

Part Number: DNP-234-4610

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Denso Oxygen Sensors 234-4274

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Chrysler, Dodge, Jeep, Mitsubishi, Ram, Volkswagen, Each

Part Number: DNP-234-4274

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Denso Oxygen Sensors 234-4046

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Ford, Jaguar, Lincoln, Mazda, Mercury, Each

Part Number: DNP-234-4046

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Denso Oxygen Sensors for 2003-2008 COROLLA, MATRIX, VIBE - 234-4233

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

Part Number: DNP-234-4233

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 10, 2026 if ordered today

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Estimated Ship Date: Feb 10, 2026 if ordered today

Denso Oxygen Sensors 234-4169

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Lexus, Toyota, Each

Part Number: DNP-234-4169

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Denso Oxygen Sensors for 2003-2005 CIVIC, 2005-2006 CR-V - 234-4352

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for use on Honda®, Each

Part Number: DNP-234-4352

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 10, 2026 if ordered today

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Estimated Ship Date: Feb 10, 2026 if ordered today

Denso Oxygen Sensors 234-4622

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

Part Number: DNP-234-4622

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Denso Oxygen Sensors 234-4127

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Ford, Lincoln, Mazda, Mercury, Each

Part Number: DNP-234-4127

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Denso Oxygen Sensors 234-4621

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, for use on Acura®, Honda®, Each

Part Number: DNP-234-4621

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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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: Feb 10, 2026 if ordered today

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Estimated Ship Date: Feb 10, 2026 if ordered today

Denso Oxygen Sensors 234-4741

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

Part Number: DNP-234-4741

Not Yet Reviewed

Estimated Ship Date: Feb 10, 2026 if ordered today

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Estimated Ship Date: Feb 10, 2026 if ordered today

Denso Oxygen Sensors 234-4835

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

Part Number: DNP-234-4835

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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