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 34 Items.

Results 1 - 25 of 34

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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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 234-4046

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: Today

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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: Today

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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: Today

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Denso Oxygen Sensors 234-3002

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

Part Number: DNP-234-3002

5.0 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 234-4401

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

Part Number: DNP-234-4401

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Denso Oxygen Sensors 234-4490

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

Part Number: DNP-234-4490

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Denso Oxygen Sensors 234-4489

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

Part Number: DNP-234-4489

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 234-4403

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

Part Number: DNP-234-4403

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 234-3007

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

Part Number: DNP-234-3007

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 234-4070

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

Part Number: DNP-234-4070

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 234-4071

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

Part Number: DNP-234-4071

5.0 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 234-4001

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

Part Number: DNP-234-4001

Not Yet Reviewed

Estimated Ship Date: Mar 2, 2026 if ordered today

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Denso Oxygen Sensors 234-3000

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

Part Number: DNP-234-3000

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 234-4106

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

Part Number: DNP-234-4106

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 234-3090

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

Part Number: DNP-234-3090

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 234-4212

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

Part Number: DNP-234-4212

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 234-4609

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

Part Number: DNP-234-4609

5.0 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 234-4611

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

Part Number: DNP-234-4611

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 234-4372

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

Part Number: DNP-234-4372

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 234-4374

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

Part Number: DNP-234-4374

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 for 1995-1999 CONTOUR, MYSTIQUE, 1999 COUGAR - 234-4016

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

Part Number: DNP-234-4016

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 for 2011-2012 ESCAPE, FUSION, 2011 MILAN - 234-4740

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

Part Number: DNP-234-4740

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 for 1998-2000 QUEST, VILLAGER - 234-4779

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

Part Number: DNP-234-4779

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

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