Denso Air/Fuel Ratio Sensors

4.76 out of 5 stars 21 Customer Reviews

Denso air/fuel ratio sensors (A/F sensors) were developed to measure air-to-fuel ratios under a wider range of driving conditions than oxygen sensors. A/F sensors,

Denso air/fuel ratio sensors (A/F sensors) were developed to measure air-to-fuel ratios under a wider range of driving conditions than oxygen sensors. A/F sensors, also known as wide-band oxygen sensors, send information to the engine management computer to make adjustments based on driving conditions. Their wider range and variable adjustments allow engines to burn fuel more efficiently and produce fewer emissions. As A/F sensor technology has evolved, Denso has been there every step of the way. From the first thimble-type sensors to today's heated, quick-response sensors required to meet ever more stringent emissions regulations, Denso has supplied OEMs with quality components and continues to innovate. Denso helped to develop this important technology and you can rely on Denso First Time Fit A/F sensors. Features and benefits of Denso air/fuel ratio sensors include: * Tarnish-proof platinum electrode provides longer life and maintains accuracy * Quick-response planar zirconia element quickly detects oxygen concentration * Measures air/fuel ratios from approximately 12:1 to 19:1 * Increased performance by mapping air/fuel ratios throughout the RPM range * Lower emissions by optimizing the air/fuel mixture * Reduces fuel consumption and maximizes catalytic converter life * First Time Fit design delivers the right part the first time

Results 1 - 25 of 321

Denso Air/Fuel Ratio Sensors for 2002-2004 RSX, CR-V, 2001-2005 CIVIC - 234-9005

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

Part Number: DNP-234-9005

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Denso Air/Fuel Ratio Sensors 234-9051

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

Part Number: DNP-234-9051

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Denso Air/Fuel Ratio Sensors for 2000-2004 TUNDRA, TACOMA, 2000 4RUNNER - 234-9001

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

Part Number: DNP-234-9001

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors 234-9138

Oxygen Sensor, OE Style, Heated, Thread-In Mounting, Subaru, Volkswagen, Each

Part Number: DNP-234-9138

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors for 1999-2002 4RUNNER, 2000-2004 TACOMA - 234-9002

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

Part Number: DNP-234-9002

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors 234-5003

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

Part Number: DNP-234-5003

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors 234-9135

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

Part Number: DNP-234-9135

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Denso Air/Fuel Ratio Sensors 234-9036

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

Part Number: DNP-234-9036

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors 234-5097

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

Part Number: DNP-234-5097

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors 234-5060

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

Part Number: DNP-234-5060

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors 234-9026

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

Part Number: DNP-234-9026

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Denso Air/Fuel Ratio Sensors 234-9022

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

Part Number: DNP-234-9022

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors for 2004-2006 BAJA - 234-9121

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

Part Number: DNP-234-9121

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors 234-5038

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

Part Number: DNP-234-5038

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors for 2004-2008 TSX - 234-9066

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

Part Number: DNP-234-9066

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors for 2008-2012 ACCORD, 2010-2011 CR-V, 2009-2014 TSX - 234-9091

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

Part Number: DNP-234-9091

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors 234-9038

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

Part Number: DNP-234-9038

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors 234-9042

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

Part Number: DNP-234-9042

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Denso Air/Fuel Ratio Sensors for 2005 9-2X, 2002-2005 IMPREZA - 234-9011

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

Part Number: DNP-234-9011

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors 234-5173

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

Part Number: DNP-234-5173

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Denso Air/Fuel Ratio Sensors 234-9145

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

Part Number: DNP-234-9145

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors for 2005-2006 CR-V, RSX, 2003-2009 ELEMENT - 234-9064

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

Part Number: DNP-234-9064

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Denso Air/Fuel Ratio Sensors 234-9049

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

Part Number: DNP-234-9049

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Denso Air/Fuel Ratio Sensors 234-9307

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

Part Number: DNP-234-9307

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

Denso Air/Fuel Ratio Sensors 234-5176

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

Part Number: DNP-234-5176

Not Yet Reviewed

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

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