O2 Sensors, Oxygen Sensors - Narrowband, Wideband, Upstream, Downstream, Denso, O2 Sensors

The oxygen sensor, or O2 sensor, measures the amount of oxygen in your vehicle’s exhaust gases. Your engine’s computer uses this data to help figure out...

The oxygen sensor, or O2 sensor, measures the amount of oxygen in your vehicle’s exhaust gases. Your engine’s computer uses this data to help figure out the current air/fuel ratio, which allows it to maintain fuel efficiency and emissions standards. If your ride starts running rough, you may need to clean or replace this important sensor. Fortunately, you’re at the right place to get the replacement oxygen sensor you need—Summit Racing Equipment!

Narrowband vs. Wideband

A narrowband O2 sensor only informs the computer if your engine is running rich or lean. A wideband sensor measures how rich or...

Narrowband vs. Wideband

A narrowband O2 sensor only informs the computer if your engine is running rich or lean. A wideband sensor measures how rich or how lean the ratio is.

Upstream vs. Downstream

Upstream O2 sensors are positioned before the catalytic converter; downstream sensors are after it.

Top Brands

Oxygen (O2) sensors are crucial to your fuel-injected car, so Summit only carries reliable brands, including, Bosch, NTK, ACDelco, Denso, Holley, and E3 Spark Plugs.

Individual Parts

Part Groups

Results 1 - 25 of 43

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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Estimated Ship Date: Tomorrow

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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Estimated Ship Date: Tomorrow

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 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: Tomorrow

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Estimated Ship Date: Tomorrow

Denso Air/Fuel Ratio Sensors 234-9050

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

Part Number: DNP-234-9050

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

NTK Oxygen Sensors 24851

Direct fit AFR sensor, 4 wire terminated

Part Number: NGK-24851

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Denso Oxygen Sensors 234-4064

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

Part Number: DNP-234-4064

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 Oxygen Sensors 234-4927

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

Part Number: DNP-234-4927

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Aug 25, 2025 if ordered today

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Estimated Ship Date: Aug 25, 2025 if ordered today

NTK Oxygen Sensors 24594

Oxygen Sensor, 4-Wire, 0-1 V, Lexus, Toyota, Each

Part Number: NGK-24594

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Denso Oxygen Sensors 234-8072

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

Part Number: DNP-234-8072

Not Yet Reviewed

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

Denso Oxygen Sensors 234-9161

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

Part Number: DNP-234-9161

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 234-9008

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

Part Number: DNP-234-9008

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 234-9128

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

Part Number: DNP-234-9128

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 Oxygen Sensors 234-4925

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

Part Number: DNP-234-4925

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 Oxygen Sensors for 2019-2022 AVALON, 2018-2024 CAMRY, 2019-2024 ES350 - 234-8073

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

Part Number: DNP-234-8073

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

Delphi Oxygen Sensors ES20157

Oxygen Sensor, 4-wire, Thread-in, Lexus, Pontiac, Toyota, Each

Part Number: DFP-ES20157

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

Delphi Oxygen Sensors ES20326

Oxygen Sensor, 4-wire, Thread-in, Lexus, Toyota, Each

Part Number: DFP-ES20326

Not Yet Reviewed

Estimated Ship Date: Aug 18, 2025 if ordered today

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Estimated Ship Date: Aug 18, 2025 if ordered today

NTK Oxygen Sensors 24662

Oxygen Sensor, 4-Wire, 0-1 V, Lexus, Pontiac, Scion, Toyota, 2.4, 3.0L, Each

Part Number: NGK-24662

Not Yet Reviewed

Estimated Ship Date: Oct 6, 2025 if ordered today

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Estimated Ship Date: Oct 6, 2025 if ordered today

Bosch Premium Original Equipment-Type Oxygen Sensors 15571

Oxygen Sensors, Premium Original Equipment-Type, Lexus, Toyota, Each

Part Number: BCH-15571

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

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Estimated Ship Date: Aug 11, 2025 if ordered today

Bosch Premium Original Equipment-Type Oxygen Sensors 15486

Oxygen Sensors, Premium Original Equipment-Type, Lexus, Pontiac, Scion, Toyota, Each

Part Number: BCH-15486

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

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Estimated Ship Date: Aug 11, 2025 if ordered today

Bosch Premium Original Equipment-Type Oxygen Sensors 18081

Oxygen Sensors, Premium Original Equipment-Type, Lexus, Scion, Subaru, Toyota, Each

Part Number: BCH-18081

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

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Estimated Ship Date: Aug 11, 2025 if ordered today

Bosch Premium Original Equipment-Type Oxygen Sensors 18173

Oxygen Sensor, Thread-In, Lexus, Toyota, Each

Part Number: BCH-18173

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

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Estimated Ship Date: Aug 11, 2025 if ordered today

Bosch Premium Original Equipment-Type Oxygen Sensors for 2015-2018 AVALON, 2015-2017 CAMRY, 2014-2018 ES350 - 18190

Oxygen Sensor, Premium, OE, Direct Fit, 4-Wire, Thread-in, 15.957 in., Lexus, Toyota, Each

Part Number: BCH-18190

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

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Estimated Ship Date: Aug 11, 2025 if ordered today

Bosch Premium Original Equipment-Type Oxygen Sensors 18071

Oxygen Sensors, Premium Original Equipment-Type, Lexus, Scion, Toyota, Each

Part Number: BCH-18071

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

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Estimated Ship Date: Aug 11, 2025 if ordered today

Bosch Premium Original Equipment-Type Oxygen Sensors for 2015-2018 AVALON, 2015-2017 CAMRY, 2014-2018 ES350 - 18078

Oxygen Sensor, Premium, OE, Direct Fit, 4-Wire, Thread-in, 14.170 in., Lexus, Toyota, Each

Part Number: BCH-18078

Not Yet Reviewed

Estimated Ship Date: Aug 11, 2025 if ordered today

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Estimated Ship Date: Aug 11, 2025 if ordered today

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